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• TStarrocksExternalService.java

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/**
 * Autogenerated by Thrift Compiler (0.13.0)
 *
 * DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
 *  @generated
 */
package com.starrocks.thrift;

@SuppressWarnings({"cast", "rawtypes", "serial", "unchecked", "unused"})
@javax.annotation.Generated(value = "Autogenerated by Thrift Compiler (0.13.0)", date = "2022-03-09")
public class TStarrocksExternalService {

  public interface Iface {

    public TScanOpenResult open_scanner(TScanOpenParams params) throws org.apache.thrift.TException;

    public TScanBatchResult get_next(TScanNextBatchParams params) throws org.apache.thrift.TException;

    public TScanCloseResult close_scanner(TScanCloseParams params) throws org.apache.thrift.TException;

  }

  public interface AsyncIface {

    public void open_scanner(TScanOpenParams params, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException;

    public void get_next(TScanNextBatchParams params, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException;

    public void close_scanner(TScanCloseParams params, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException;

  }

  public static class Client extends org.apache.thrift.TServiceClient implements Iface {
    public static class Factory implements org.apache.thrift.TServiceClientFactory {
      public Factory() {}
      public Client getClient(org.apache.thrift.protocol.TProtocol prot) {
        return new Client(prot);
      }
      public Client getClient(org.apache.thrift.protocol.TProtocol iprot, org.apache.thrift.protocol.TProtocol oprot) {
        return new Client(iprot, oprot);
      }
    }

    public Client(org.apache.thrift.protocol.TProtocol prot)
    {
      super(prot, prot);
    }

    public Client(org.apache.thrift.protocol.TProtocol iprot, org.apache.thrift.protocol.TProtocol oprot) {
      super(iprot, oprot);
    }

    public TScanOpenResult open_scanner(TScanOpenParams params) throws org.apache.thrift.TException
    {
      send_open_scanner(params);
      return recv_open_scanner();
    }

    public void send_open_scanner(TScanOpenParams params) throws org.apache.thrift.TException
    {
      open_scanner_args args = new open_scanner_args();
      args.setParams(params);
      sendBase("open_scanner", args);
    }

    public TScanOpenResult recv_open_scanner() throws org.apache.thrift.TException
    {
      open_scanner_result result = new open_scanner_result();
      receiveBase(result, "open_scanner");
      if (result.isSetSuccess()) {
        return result.success;
      }
      throw new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.MISSING_RESULT, "open_scanner failed: unknown result");
    }

    public TScanBatchResult get_next(TScanNextBatchParams params) throws org.apache.thrift.TException
    {
      send_get_next(params);
      return recv_get_next();
    }

    public void send_get_next(TScanNextBatchParams params) throws org.apache.thrift.TException
    {
      get_next_args args = new get_next_args();
      args.setParams(params);
      sendBase("get_next", args);
    }

    public TScanBatchResult recv_get_next() throws org.apache.thrift.TException
    {
      get_next_result result = new get_next_result();
      receiveBase(result, "get_next");
      if (result.isSetSuccess()) {
        return result.success;
      }
      throw new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.MISSING_RESULT, "get_next failed: unknown result");
    }

    public TScanCloseResult close_scanner(TScanCloseParams params) throws org.apache.thrift.TException
    {
      send_close_scanner(params);
      return recv_close_scanner();
    }

    public void send_close_scanner(TScanCloseParams params) throws org.apache.thrift.TException
    {
      close_scanner_args args = new close_scanner_args();
      args.setParams(params);
      sendBase("close_scanner", args);
    }

    public TScanCloseResult recv_close_scanner() throws org.apache.thrift.TException
    {
      close_scanner_result result = new close_scanner_result();
      receiveBase(result, "close_scanner");
      if (result.isSetSuccess()) {
        return result.success;
      }
      throw new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.MISSING_RESULT, "close_scanner failed: unknown result");
    }

  }
  public static class AsyncClient extends org.apache.thrift.async.TAsyncClient implements AsyncIface {
    public static class Factory implements org.apache.thrift.async.TAsyncClientFactory {
      private org.apache.thrift.async.TAsyncClientManager clientManager;
      private org.apache.thrift.protocol.TProtocolFactory protocolFactory;
      public Factory(org.apache.thrift.async.TAsyncClientManager clientManager, org.apache.thrift.protocol.TProtocolFactory protocolFactory) {
        this.clientManager = clientManager;
        this.protocolFactory = protocolFactory;
      }
      public AsyncClient getAsyncClient(org.apache.thrift.transport.TNonblockingTransport transport) {
        return new AsyncClient(protocolFactory, clientManager, transport);
      }
    }

    public AsyncClient(org.apache.thrift.protocol.TProtocolFactory protocolFactory, org.apache.thrift.async.TAsyncClientManager clientManager, org.apache.thrift.transport.TNonblockingTransport transport) {
      super(protocolFactory, clientManager, transport);
    }

    public void open_scanner(TScanOpenParams params, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException {
      checkReady();
      open_scanner_call method_call = new open_scanner_call(params, resultHandler, this, ___protocolFactory, ___transport);
      this.___currentMethod = method_call;
      ___manager.call(method_call);
    }

    public static class open_scanner_call extends org.apache.thrift.async.TAsyncMethodCall {
      private TScanOpenParams params;
      public open_scanner_call(TScanOpenParams params, org.apache.thrift.async.AsyncMethodCallback resultHandler, org.apache.thrift.async.TAsyncClient client, org.apache.thrift.protocol.TProtocolFactory protocolFactory, org.apache.thrift.transport.TNonblockingTransport transport) throws org.apache.thrift.TException {
        super(client, protocolFactory, transport, resultHandler, false);
        this.params = params;
      }

      public void write_args(org.apache.thrift.protocol.TProtocol prot) throws org.apache.thrift.TException {
        prot.writeMessageBegin(new org.apache.thrift.protocol.TMessage("open_scanner", org.apache.thrift.protocol.TMessageType.CALL, 0));
        open_scanner_args args = new open_scanner_args();
        args.setParams(params);
        args.write(prot);
        prot.writeMessageEnd();
      }

      public TScanOpenResult getResult() throws org.apache.thrift.TException {
        if (getState() != org.apache.thrift.async.TAsyncMethodCall.State.RESPONSE_READ) {
          throw new java.lang.IllegalStateException("Method call not finished!");
        }
        org.apache.thrift.transport.TMemoryInputTransport memoryTransport = new org.apache.thrift.transport.TMemoryInputTransport(getFrameBuffer().array());
        org.apache.thrift.protocol.TProtocol prot = client.getProtocolFactory().getProtocol(memoryTransport);
        return (new Client(prot)).recv_open_scanner();
      }
    }

    public void get_next(TScanNextBatchParams params, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException {
      checkReady();
      get_next_call method_call = new get_next_call(params, resultHandler, this, ___protocolFactory, ___transport);
      this.___currentMethod = method_call;
      ___manager.call(method_call);
    }

    public static class get_next_call extends org.apache.thrift.async.TAsyncMethodCall {
      private TScanNextBatchParams params;
      public get_next_call(TScanNextBatchParams params, org.apache.thrift.async.AsyncMethodCallback resultHandler, org.apache.thrift.async.TAsyncClient client, org.apache.thrift.protocol.TProtocolFactory protocolFactory, org.apache.thrift.transport.TNonblockingTransport transport) throws org.apache.thrift.TException {
        super(client, protocolFactory, transport, resultHandler, false);
        this.params = params;
      }

      public void write_args(org.apache.thrift.protocol.TProtocol prot) throws org.apache.thrift.TException {
        prot.writeMessageBegin(new org.apache.thrift.protocol.TMessage("get_next", org.apache.thrift.protocol.TMessageType.CALL, 0));
        get_next_args args = new get_next_args();
        args.setParams(params);
        args.write(prot);
        prot.writeMessageEnd();
      }

      public TScanBatchResult getResult() throws org.apache.thrift.TException {
        if (getState() != org.apache.thrift.async.TAsyncMethodCall.State.RESPONSE_READ) {
          throw new java.lang.IllegalStateException("Method call not finished!");
        }
        org.apache.thrift.transport.TMemoryInputTransport memoryTransport = new org.apache.thrift.transport.TMemoryInputTransport(getFrameBuffer().array());
        org.apache.thrift.protocol.TProtocol prot = client.getProtocolFactory().getProtocol(memoryTransport);
        return (new Client(prot)).recv_get_next();
      }
    }

    public void close_scanner(TScanCloseParams params, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException {
      checkReady();
      close_scanner_call method_call = new close_scanner_call(params, resultHandler, this, ___protocolFactory, ___transport);
      this.___currentMethod = method_call;
      ___manager.call(method_call);
    }

    public static class close_scanner_call extends org.apache.thrift.async.TAsyncMethodCall {
      private TScanCloseParams params;
      public close_scanner_call(TScanCloseParams params, org.apache.thrift.async.AsyncMethodCallback resultHandler, org.apache.thrift.async.TAsyncClient client, org.apache.thrift.protocol.TProtocolFactory protocolFactory, org.apache.thrift.transport.TNonblockingTransport transport) throws org.apache.thrift.TException {
        super(client, protocolFactory, transport, resultHandler, false);
        this.params = params;
      }

      public void write_args(org.apache.thrift.protocol.TProtocol prot) throws org.apache.thrift.TException {
        prot.writeMessageBegin(new org.apache.thrift.protocol.TMessage("close_scanner", org.apache.thrift.protocol.TMessageType.CALL, 0));
        close_scanner_args args = new close_scanner_args();
        args.setParams(params);
        args.write(prot);
        prot.writeMessageEnd();
      }

      public TScanCloseResult getResult() throws org.apache.thrift.TException {
        if (getState() != org.apache.thrift.async.TAsyncMethodCall.State.RESPONSE_READ) {
          throw new java.lang.IllegalStateException("Method call not finished!");
        }
        org.apache.thrift.transport.TMemoryInputTransport memoryTransport = new org.apache.thrift.transport.TMemoryInputTransport(getFrameBuffer().array());
        org.apache.thrift.protocol.TProtocol prot = client.getProtocolFactory().getProtocol(memoryTransport);
        return (new Client(prot)).recv_close_scanner();
      }
    }

  }

  public static class Processor extends org.apache.thrift.TBaseProcessor implements org.apache.thrift.TProcessor {
    private static final org.slf4j.Logger _LOGGER = org.slf4j.LoggerFactory.getLogger(Processor.class.getName());
    public Processor(I iface) {
      super(iface, getProcessMap(new java.util.HashMap>()));
    }

    protected Processor(I iface, java.util.Map> processMap) {
      super(iface, getProcessMap(processMap));
    }

    private static  java.util.Map> getProcessMap(java.util.Map> processMap) {
      processMap.put("open_scanner", new open_scanner());
      processMap.put("get_next", new get_next());
      processMap.put("close_scanner", new close_scanner());
      return processMap;
    }

    public static class open_scanner extends org.apache.thrift.ProcessFunction {
      public open_scanner() {
        super("open_scanner");
      }

      public open_scanner_args getEmptyArgsInstance() {
        return new open_scanner_args();
      }

      protected boolean isOneway() {
        return false;
      }

      @Override
      protected boolean rethrowUnhandledExceptions() {
        return false;
      }

      public open_scanner_result getResult(I iface, open_scanner_args args) throws org.apache.thrift.TException {
        open_scanner_result result = new open_scanner_result();
        result.success = iface.open_scanner(args.params);
        return result;
      }
    }

    public static class get_next extends org.apache.thrift.ProcessFunction {
      public get_next() {
        super("get_next");
      }

      public get_next_args getEmptyArgsInstance() {
        return new get_next_args();
      }

      protected boolean isOneway() {
        return false;
      }

      @Override
      protected boolean rethrowUnhandledExceptions() {
        return false;
      }

      public get_next_result getResult(I iface, get_next_args args) throws org.apache.thrift.TException {
        get_next_result result = new get_next_result();
        result.success = iface.get_next(args.params);
        return result;
      }
    }

    public static class close_scanner extends org.apache.thrift.ProcessFunction {
      public close_scanner() {
        super("close_scanner");
      }

      public close_scanner_args getEmptyArgsInstance() {
        return new close_scanner_args();
      }

      protected boolean isOneway() {
        return false;
      }

      @Override
      protected boolean rethrowUnhandledExceptions() {
        return false;
      }

      public close_scanner_result getResult(I iface, close_scanner_args args) throws org.apache.thrift.TException {
        close_scanner_result result = new close_scanner_result();
        result.success = iface.close_scanner(args.params);
        return result;
      }
    }

  }

  public static class AsyncProcessor extends org.apache.thrift.TBaseAsyncProcessor {
    private static final org.slf4j.Logger _LOGGER = org.slf4j.LoggerFactory.getLogger(AsyncProcessor.class.getName());
    public AsyncProcessor(I iface) {
      super(iface, getProcessMap(new java.util.HashMap>()));
    }

    protected AsyncProcessor(I iface, java.util.Map> processMap) {
      super(iface, getProcessMap(processMap));
    }

    private static  java.util.Map> getProcessMap(java.util.Map> processMap) {
      processMap.put("open_scanner", new open_scanner());
      processMap.put("get_next", new get_next());
      processMap.put("close_scanner", new close_scanner());
      return processMap;
    }

    public static class open_scanner extends org.apache.thrift.AsyncProcessFunction {
      public open_scanner() {
        super("open_scanner");
      }

      public open_scanner_args getEmptyArgsInstance() {
        return new open_scanner_args();
      }

      public org.apache.thrift.async.AsyncMethodCallback getResultHandler(final org.apache.thrift.server.AbstractNonblockingServer.AsyncFrameBuffer fb, final int seqid) {
        final org.apache.thrift.AsyncProcessFunction fcall = this;
        return new org.apache.thrift.async.AsyncMethodCallback() { 
          public void onComplete(TScanOpenResult o) {
            open_scanner_result result = new open_scanner_result();
            result.success = o;
            try {
              fcall.sendResponse(fb, result, org.apache.thrift.protocol.TMessageType.REPLY,seqid);
            } catch (org.apache.thrift.transport.TTransportException e) {
              _LOGGER.error("TTransportException writing to internal frame buffer", e);
              fb.close();
            } catch (java.lang.Exception e) {
              _LOGGER.error("Exception writing to internal frame buffer", e);
              onError(e);
            }
          }
          public void onError(java.lang.Exception e) {
            byte msgType = org.apache.thrift.protocol.TMessageType.REPLY;
            org.apache.thrift.TSerializable msg;
            open_scanner_result result = new open_scanner_result();
            if (e instanceof org.apache.thrift.transport.TTransportException) {
              _LOGGER.error("TTransportException inside handler", e);
              fb.close();
              return;
            } else if (e instanceof org.apache.thrift.TApplicationException) {
              _LOGGER.error("TApplicationException inside handler", e);
              msgType = org.apache.thrift.protocol.TMessageType.EXCEPTION;
              msg = (org.apache.thrift.TApplicationException)e;
            } else {
              _LOGGER.error("Exception inside handler", e);
              msgType = org.apache.thrift.protocol.TMessageType.EXCEPTION;
              msg = new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.INTERNAL_ERROR, e.getMessage());
            }
            try {
              fcall.sendResponse(fb,msg,msgType,seqid);
            } catch (java.lang.Exception ex) {
              _LOGGER.error("Exception writing to internal frame buffer", ex);
              fb.close();
            }
          }
        };
      }

      protected boolean isOneway() {
        return false;
      }

      public void start(I iface, open_scanner_args args, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException {
        iface.open_scanner(args.params,resultHandler);
      }
    }

    public static class get_next extends org.apache.thrift.AsyncProcessFunction {
      public get_next() {
        super("get_next");
      }

      public get_next_args getEmptyArgsInstance() {
        return new get_next_args();
      }

      public org.apache.thrift.async.AsyncMethodCallback getResultHandler(final org.apache.thrift.server.AbstractNonblockingServer.AsyncFrameBuffer fb, final int seqid) {
        final org.apache.thrift.AsyncProcessFunction fcall = this;
        return new org.apache.thrift.async.AsyncMethodCallback() { 
          public void onComplete(TScanBatchResult o) {
            get_next_result result = new get_next_result();
            result.success = o;
            try {
              fcall.sendResponse(fb, result, org.apache.thrift.protocol.TMessageType.REPLY,seqid);
            } catch (org.apache.thrift.transport.TTransportException e) {
              _LOGGER.error("TTransportException writing to internal frame buffer", e);
              fb.close();
            } catch (java.lang.Exception e) {
              _LOGGER.error("Exception writing to internal frame buffer", e);
              onError(e);
            }
          }
          public void onError(java.lang.Exception e) {
            byte msgType = org.apache.thrift.protocol.TMessageType.REPLY;
            org.apache.thrift.TSerializable msg;
            get_next_result result = new get_next_result();
            if (e instanceof org.apache.thrift.transport.TTransportException) {
              _LOGGER.error("TTransportException inside handler", e);
              fb.close();
              return;
            } else if (e instanceof org.apache.thrift.TApplicationException) {
              _LOGGER.error("TApplicationException inside handler", e);
              msgType = org.apache.thrift.protocol.TMessageType.EXCEPTION;
              msg = (org.apache.thrift.TApplicationException)e;
            } else {
              _LOGGER.error("Exception inside handler", e);
              msgType = org.apache.thrift.protocol.TMessageType.EXCEPTION;
              msg = new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.INTERNAL_ERROR, e.getMessage());
            }
            try {
              fcall.sendResponse(fb,msg,msgType,seqid);
            } catch (java.lang.Exception ex) {
              _LOGGER.error("Exception writing to internal frame buffer", ex);
              fb.close();
            }
          }
        };
      }

      protected boolean isOneway() {
        return false;
      }

      public void start(I iface, get_next_args args, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException {
        iface.get_next(args.params,resultHandler);
      }
    }

    public static class close_scanner extends org.apache.thrift.AsyncProcessFunction {
      public close_scanner() {
        super("close_scanner");
      }

      public close_scanner_args getEmptyArgsInstance() {
        return new close_scanner_args();
      }

      public org.apache.thrift.async.AsyncMethodCallback getResultHandler(final org.apache.thrift.server.AbstractNonblockingServer.AsyncFrameBuffer fb, final int seqid) {
        final org.apache.thrift.AsyncProcessFunction fcall = this;
        return new org.apache.thrift.async.AsyncMethodCallback() { 
          public void onComplete(TScanCloseResult o) {
            close_scanner_result result = new close_scanner_result();
            result.success = o;
            try {
              fcall.sendResponse(fb, result, org.apache.thrift.protocol.TMessageType.REPLY,seqid);
            } catch (org.apache.thrift.transport.TTransportException e) {
              _LOGGER.error("TTransportException writing to internal frame buffer", e);
              fb.close();
            } catch (java.lang.Exception e) {
              _LOGGER.error("Exception writing to internal frame buffer", e);
              onError(e);
            }
          }
          public void onError(java.lang.Exception e) {
            byte msgType = org.apache.thrift.protocol.TMessageType.REPLY;
            org.apache.thrift.TSerializable msg;
            close_scanner_result result = new close_scanner_result();
            if (e instanceof org.apache.thrift.transport.TTransportException) {
              _LOGGER.error("TTransportException inside handler", e);
              fb.close();
              return;
            } else if (e instanceof org.apache.thrift.TApplicationException) {
              _LOGGER.error("TApplicationException inside handler", e);
              msgType = org.apache.thrift.protocol.TMessageType.EXCEPTION;
              msg = (org.apache.thrift.TApplicationException)e;
            } else {
              _LOGGER.error("Exception inside handler", e);
              msgType = org.apache.thrift.protocol.TMessageType.EXCEPTION;
              msg = new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.INTERNAL_ERROR, e.getMessage());
            }
            try {
              fcall.sendResponse(fb,msg,msgType,seqid);
            } catch (java.lang.Exception ex) {
              _LOGGER.error("Exception writing to internal frame buffer", ex);
              fb.close();
            }
          }
        };
      }

      protected boolean isOneway() {
        return false;
      }

      public void start(I iface, close_scanner_args args, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException {
        iface.close_scanner(args.params,resultHandler);
      }
    }

  }

  public static class open_scanner_args implements org.apache.thrift.TBase, java.io.Serializable, Cloneable, Comparable   {
    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("open_scanner_args");

    private static final org.apache.thrift.protocol.TField PARAMS_FIELD_DESC = new org.apache.thrift.protocol.TField("params", org.apache.thrift.protocol.TType.STRUCT, (short)1);

    private static final org.apache.thrift.scheme.SchemeFactory STANDARD_SCHEME_FACTORY = new open_scanner_argsStandardSchemeFactory();
    private static final org.apache.thrift.scheme.SchemeFactory TUPLE_SCHEME_FACTORY = new open_scanner_argsTupleSchemeFactory();

    public @org.apache.thrift.annotation.Nullable TScanOpenParams params; // required

    /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
    public enum _Fields implements org.apache.thrift.TFieldIdEnum {
      PARAMS((short)1, "params");

      private static final java.util.Map byName = new java.util.HashMap();

      static {
        for (_Fields field : java.util.EnumSet.allOf(_Fields.class)) {
          byName.put(field.getFieldName(), field);
        }
      }

      /**
       * Find the _Fields constant that matches fieldId, or null if its not found.
       */
      @org.apache.thrift.annotation.Nullable
      public static _Fields findByThriftId(int fieldId) {
        switch(fieldId) {
          case 1: // PARAMS
            return PARAMS;
          default:
            return null;
        }
      }

      /**
       * Find the _Fields constant that matches fieldId, throwing an exception
       * if it is not found.
       */
      public static _Fields findByThriftIdOrThrow(int fieldId) {
        _Fields fields = findByThriftId(fieldId);
        if (fields == null) throw new java.lang.IllegalArgumentException("Field " + fieldId + " doesn't exist!");
        return fields;
      }

      /**
       * Find the _Fields constant that matches name, or null if its not found.
       */
      @org.apache.thrift.annotation.Nullable
      public static _Fields findByName(java.lang.String name) {
        return byName.get(name);
      }

      private final short _thriftId;
      private final java.lang.String _fieldName;

      _Fields(short thriftId, java.lang.String fieldName) {
        _thriftId = thriftId;
        _fieldName = fieldName;
      }

      public short getThriftFieldId() {
        return _thriftId;
      }

      public java.lang.String getFieldName() {
        return _fieldName;
      }
    }

    // isset id assignments
    public static final java.util.Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
    static {
      java.util.Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new java.util.EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
      tmpMap.put(_Fields.PARAMS, new org.apache.thrift.meta_data.FieldMetaData("params", org.apache.thrift.TFieldRequirementType.DEFAULT, 
          new org.apache.thrift.meta_data.StructMetaData(org.apache.thrift.protocol.TType.STRUCT, TScanOpenParams.class)));
      metaDataMap = java.util.Collections.unmodifiableMap(tmpMap);
      org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(open_scanner_args.class, metaDataMap);
    }

    public open_scanner_args() {
    }

    public open_scanner_args(
      TScanOpenParams params)
    {
      this();
      this.params = params;
    }

    /**
     * Performs a deep copy on other.
     */
    public open_scanner_args(open_scanner_args other) {
      if (other.isSetParams()) {
        this.params = new TScanOpenParams(other.params);
      }
    }

    public open_scanner_args deepCopy() {
      return new open_scanner_args(this);
    }

    @Override
    public void clear() {
      this.params = null;
    }

    @org.apache.thrift.annotation.Nullable
    public TScanOpenParams getParams() {
      return this.params;
    }

    public open_scanner_args setParams(@org.apache.thrift.annotation.Nullable TScanOpenParams params) {
      this.params = params;
      return this;
    }

    public void unsetParams() {
      this.params = null;
    }

    /** Returns true if field params is set (has been assigned a value) and false otherwise */
    public boolean isSetParams() {
      return this.params != null;
    }

    public void setParamsIsSet(boolean value) {
      if (!value) {
        this.params = null;
      }
    }

    public void setFieldValue(_Fields field, @org.apache.thrift.annotation.Nullable java.lang.Object value) {
      switch (field) {
      case PARAMS:
        if (value == null) {
          unsetParams();
        } else {
          setParams((TScanOpenParams)value);
        }
        break;

      }
    }

    @org.apache.thrift.annotation.Nullable
    public java.lang.Object getFieldValue(_Fields field) {
      switch (field) {
      case PARAMS:
        return getParams();

      }
      throw new java.lang.IllegalStateException();
    }

    /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
    public boolean isSet(_Fields field) {
      if (field == null) {
        throw new java.lang.IllegalArgumentException();
      }

      switch (field) {
      case PARAMS:
        return isSetParams();
      }
      throw new java.lang.IllegalStateException();
    }

    @Override
    public boolean equals(java.lang.Object that) {
      if (that == null)
        return false;
      if (that instanceof open_scanner_args)
        return this.equals((open_scanner_args)that);
      return false;
    }

    public boolean equals(open_scanner_args that) {
      if (that == null)
        return false;
      if (this == that)
        return true;

      boolean this_present_params = true && this.isSetParams();
      boolean that_present_params = true && that.isSetParams();
      if (this_present_params || that_present_params) {
        if (!(this_present_params && that_present_params))
          return false;
        if (!this.params.equals(that.params))
          return false;
      }

      return true;
    }

    @Override
    public int hashCode() {
      int hashCode = 1;

      hashCode = hashCode * 8191 + ((isSetParams()) ? 131071 : 524287);
      if (isSetParams())
        hashCode = hashCode * 8191 + params.hashCode();

      return hashCode;
    }

    @Override
    public int compareTo(open_scanner_args other) {
      if (!getClass().equals(other.getClass())) {
        return getClass().getName().compareTo(other.getClass().getName());
      }

      int lastComparison = 0;

      lastComparison = java.lang.Boolean.valueOf(isSetParams()).compareTo(other.isSetParams());
      if (lastComparison != 0) {
        return lastComparison;
      }
      if (isSetParams()) {
        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.params, other.params);
        if (lastComparison != 0) {
          return lastComparison;
        }
      }
      return 0;
    }

    @org.apache.thrift.annotation.Nullable
    public _Fields fieldForId(int fieldId) {
      return _Fields.findByThriftId(fieldId);
    }

    public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
      scheme(iprot).read(iprot, this);
    }

    public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
      scheme(oprot).write(oprot, this);
    }

    @Override
    public java.lang.String toString() {
      java.lang.StringBuilder sb = new java.lang.StringBuilder("open_scanner_args(");
      boolean first = true;

      sb.append("params:");
      if (this.params == null) {
        sb.append("null");
      } else {
        sb.append(this.params);
      }
      first = false;
      sb.append(")");
      return sb.toString();
    }

    public void validate() throws org.apache.thrift.TException {
      // check for required fields
      // check for sub-struct validity
      if (params != null) {
        params.validate();
      }
    }

    private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
      try {
        write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
      } catch (org.apache.thrift.TException te) {
        throw new java.io.IOException(te);
      }
    }

    private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, java.lang.ClassNotFoundException {
      try {
        read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
      } catch (org.apache.thrift.TException te) {
        throw new java.io.IOException(te);
      }
    }

    private static class open_scanner_argsStandardSchemeFactory implements org.apache.thrift.scheme.SchemeFactory {
      public open_scanner_argsStandardScheme getScheme() {
        return new open_scanner_argsStandardScheme();
      }
    }

    private static class open_scanner_argsStandardScheme extends org.apache.thrift.scheme.StandardScheme {

      public void read(org.apache.thrift.protocol.TProtocol iprot, open_scanner_args struct) throws org.apache.thrift.TException {
        org.apache.thrift.protocol.TField schemeField;
        iprot.readStructBegin();
        while (true)
        {
          schemeField = iprot.readFieldBegin();
          if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
            break;
          }
          switch (schemeField.id) {
            case 1: // PARAMS
              if (schemeField.type == org.apache.thrift.protocol.TType.STRUCT) {
                struct.params = new TScanOpenParams();
                struct.params.read(iprot);
                struct.setParamsIsSet(true);
              } else { 
                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
              }
              break;
            default:
              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
          }
          iprot.readFieldEnd();
        }
        iprot.readStructEnd();

        // check for required fields of primitive type, which can't be checked in the validate method
        struct.validate();
      }

      public void write(org.apache.thrift.protocol.TProtocol oprot, open_scanner_args struct) throws org.apache.thrift.TException {
        struct.validate();

        oprot.writeStructBegin(STRUCT_DESC);
        if (struct.params != null) {
          oprot.writeFieldBegin(PARAMS_FIELD_DESC);
          struct.params.write(oprot);
          oprot.writeFieldEnd();
        }
        oprot.writeFieldStop();
        oprot.writeStructEnd();
      }

    }

    private static class open_scanner_argsTupleSchemeFactory implements org.apache.thrift.scheme.SchemeFactory {
      public open_scanner_argsTupleScheme getScheme() {
        return new open_scanner_argsTupleScheme();
      }
    }

    private static class open_scanner_argsTupleScheme extends org.apache.thrift.scheme.TupleScheme {

      @Override
      public void write(org.apache.thrift.protocol.TProtocol prot, open_scanner_args struct) throws org.apache.thrift.TException {
        org.apache.thrift.protocol.TTupleProtocol oprot = (org.apache.thrift.protocol.TTupleProtocol) prot;
        java.util.BitSet optionals = new java.util.BitSet();
        if (struct.isSetParams()) {
          optionals.set(0);
        }
        oprot.writeBitSet(optionals, 1);
        if (struct.isSetParams()) {
          struct.params.write(oprot);
        }
      }

      @Override
      public void read(org.apache.thrift.protocol.TProtocol prot, open_scanner_args struct) throws org.apache.thrift.TException {
        org.apache.thrift.protocol.TTupleProtocol iprot = (org.apache.thrift.protocol.TTupleProtocol) prot;
        java.util.BitSet incoming = iprot.readBitSet(1);
        if (incoming.get(0)) {
          struct.params = new TScanOpenParams();
          struct.params.read(iprot);
          struct.setParamsIsSet(true);
        }
      }
    }

    private static  S scheme(org.apache.thrift.protocol.TProtocol proto) {
      return (org.apache.thrift.scheme.StandardScheme.class.equals(proto.getScheme()) ? STANDARD_SCHEME_FACTORY : TUPLE_SCHEME_FACTORY).getScheme();
    }
  }

  public static class open_scanner_result implements org.apache.thrift.TBase, java.io.Serializable, Cloneable, Comparable   {
    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("open_scanner_result");

    private static final org.apache.thrift.protocol.TField SUCCESS_FIELD_DESC = new org.apache.thrift.protocol.TField("success", org.apache.thrift.protocol.TType.STRUCT, (short)0);

    private static final org.apache.thrift.scheme.SchemeFactory STANDARD_SCHEME_FACTORY = new open_scanner_resultStandardSchemeFactory();
    private static final org.apache.thrift.scheme.SchemeFactory TUPLE_SCHEME_FACTORY = new open_scanner_resultTupleSchemeFactory();

    public @org.apache.thrift.annotation.Nullable TScanOpenResult success; // required

    /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
    public enum _Fields implements org.apache.thrift.TFieldIdEnum {
      SUCCESS((short)0, "success");

      private static final java.util.Map byName = new java.util.HashMap();

      static {
        for (_Fields field : java.util.EnumSet.allOf(_Fields.class)) {
          byName.put(field.getFieldName(), field);
        }
      }

      /**
       * Find the _Fields constant that matches fieldId, or null if its not found.
       */
      @org.apache.thrift.annotation.Nullable
      public static _Fields findByThriftId(int fieldId) {
        switch(fieldId) {
          case 0: // SUCCESS
            return SUCCESS;
          default:
            return null;
        }
      }

      /**
       * Find the _Fields constant that matches fieldId, throwing an exception
       * if it is not found.
       */
      public static _Fields findByThriftIdOrThrow(int fieldId) {
        _Fields fields = findByThriftId(fieldId);
        if (fields == null) throw new java.lang.IllegalArgumentException("Field " + fieldId + " doesn't exist!");
        return fields;
      }

      /**
       * Find the _Fields constant that matches name, or null if its not found.
       */
      @org.apache.thrift.annotation.Nullable
      public static _Fields findByName(java.lang.String name) {
        return byName.get(name);
      }

      private final short _thriftId;
      private final java.lang.String _fieldName;

      _Fields(short thriftId, java.lang.String fieldName) {
        _thriftId = thriftId;
        _fieldName = fieldName;
      }

      public short getThriftFieldId() {
        return _thriftId;
      }

      public java.lang.String getFieldName() {
        return _fieldName;
      }
    }

    // isset id assignments
    public static final java.util.Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
    static {
      java.util.Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new java.util.EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
      tmpMap.put(_Fields.SUCCESS, new org.apache.thrift.meta_data.FieldMetaData("success", org.apache.thrift.TFieldRequirementType.DEFAULT, 
          new org.apache.thrift.meta_data.StructMetaData(org.apache.thrift.protocol.TType.STRUCT, TScanOpenResult.class)));
      metaDataMap = java.util.Collections.unmodifiableMap(tmpMap);
      org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(open_scanner_result.class, metaDataMap);
    }

    public open_scanner_result() {
    }

    public open_scanner_result(
      TScanOpenResult success)
    {
      this();
      this.success = success;
    }

    /**
     * Performs a deep copy on other.
     */
    public open_scanner_result(open_scanner_result other) {
      if (other.isSetSuccess()) {
        this.success = new TScanOpenResult(other.success);
      }
    }

    public open_scanner_result deepCopy() {
      return new open_scanner_result(this);
    }

    @Override
    public void clear() {
      this.success = null;
    }

    @org.apache.thrift.annotation.Nullable
    public TScanOpenResult getSuccess() {
      return this.success;
    }

    public open_scanner_result setSuccess(@org.apache.thrift.annotation.Nullable TScanOpenResult success) {
      this.success = success;
      return this;
    }

    public void unsetSuccess() {
      this.success = null;
    }

    /** Returns true if field success is set (has been assigned a value) and false otherwise */
    public boolean isSetSuccess() {
      return this.success != null;
    }

    public void setSuccessIsSet(boolean value) {
      if (!value) {
        this.success = null;
      }
    }

    public void setFieldValue(_Fields field, @org.apache.thrift.annotation.Nullable java.lang.Object value) {
      switch (field) {
      case SUCCESS:
        if (value == null) {
          unsetSuccess();
        } else {
          setSuccess((TScanOpenResult)value);
        }
        break;

      }
    }

    @org.apache.thrift.annotation.Nullable
    public java.lang.Object getFieldValue(_Fields field) {
      switch (field) {
      case SUCCESS:
        return getSuccess();

      }
      throw new java.lang.IllegalStateException();
    }

    /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
    public boolean isSet(_Fields field) {
      if (field == null) {
        throw new java.lang.IllegalArgumentException();
      }

      switch (field) {
      case SUCCESS:
        return isSetSuccess();
      }
      throw new java.lang.IllegalStateException();
    }

    @Override
    public boolean equals(java.lang.Object that) {
      if (that == null)
        return false;
      if (that instanceof open_scanner_result)
        return this.equals((open_scanner_result)that);
      return false;
    }

    public boolean equals(open_scanner_result that) {
      if (that == null)
        return false;
      if (this == that)
        return true;

      boolean this_present_success = true && this.isSetSuccess();
      boolean that_present_success = true && that.isSetSuccess();
      if (this_present_success || that_present_success) {
        if (!(this_present_success && that_present_success))
          return false;
        if (!this.success.equals(that.success))
          return false;
      }

      return true;
    }

    @Override
    public int hashCode() {
      int hashCode = 1;

      hashCode = hashCode * 8191 + ((isSetSuccess()) ? 131071 : 524287);
      if (isSetSuccess())
        hashCode = hashCode * 8191 + success.hashCode();

      return hashCode;
    }

    @Override
    public int compareTo(open_scanner_result other) {
      if (!getClass().equals(other.getClass())) {
        return getClass().getName().compareTo(other.getClass().getName());
      }

      int lastComparison = 0;

      lastComparison = java.lang.Boolean.valueOf(isSetSuccess()).compareTo(other.isSetSuccess());
      if (lastComparison != 0) {
        return lastComparison;
      }
      if (isSetSuccess()) {
        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.success, other.success);
        if (lastComparison != 0) {
          return lastComparison;
        }
      }
      return 0;
    }

    @org.apache.thrift.annotation.Nullable
    public _Fields fieldForId(int fieldId) {
      return _Fields.findByThriftId(fieldId);
    }

    public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
      scheme(iprot).read(iprot, this);
    }

    public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
      scheme(oprot).write(oprot, this);
      }

    @Override
    public java.lang.String toString() {
      java.lang.StringBuilder sb = new java.lang.StringBuilder("open_scanner_result(");
      boolean first = true;

      sb.append("success:");
      if (this.success == null) {
        sb.append("null");
      } else {
        sb.append(this.success);
      }
      first = false;
      sb.append(")");
      return sb.toString();
    }

    public void validate() throws org.apache.thrift.TException {
      // check for required fields
      // check for sub-struct validity
      if (success != null) {
        success.validate();
      }
    }

    private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
      try {
        write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
      } catch (org.apache.thrift.TException te) {
        throw new java.io.IOException(te);
      }
    }

    private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, java.lang.ClassNotFoundException {
      try {
        read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
      } catch (org.apache.thrift.TException te) {
        throw new java.io.IOException(te);
      }
    }

    private static class open_scanner_resultStandardSchemeFactory implements org.apache.thrift.scheme.SchemeFactory {
      public open_scanner_resultStandardScheme getScheme() {
        return new open_scanner_resultStandardScheme();
      }
    }

    private static class open_scanner_resultStandardScheme extends org.apache.thrift.scheme.StandardScheme {

      public void read(org.apache.thrift.protocol.TProtocol iprot, open_scanner_result struct) throws org.apache.thrift.TException {
        org.apache.thrift.protocol.TField schemeField;
        iprot.readStructBegin();
        while (true)
        {
          schemeField = iprot.readFieldBegin();
          if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
            break;
          }
          switch (schemeField.id) {
            case 0: // SUCCESS
              if (schemeField.type == org.apache.thrift.protocol.TType.STRUCT) {
                struct.success = new TScanOpenResult();
                struct.success.read(iprot);
                struct.setSuccessIsSet(true);
              } else { 
                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
              }
              break;
            default:
              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
          }
          iprot.readFieldEnd();
        }
        iprot.readStructEnd();

        // check for required fields of primitive type, which can't be checked in the validate method
        struct.validate();
      }

      public void write(org.apache.thrift.protocol.TProtocol oprot, open_scanner_result struct) throws org.apache.thrift.TException {
        struct.validate();

        oprot.writeStructBegin(STRUCT_DESC);
        if (struct.success != null) {
          oprot.writeFieldBegin(SUCCESS_FIELD_DESC);
          struct.success.write(oprot);
          oprot.writeFieldEnd();
        }
        oprot.writeFieldStop();
        oprot.writeStructEnd();
      }

    }

    private static class open_scanner_resultTupleSchemeFactory implements org.apache.thrift.scheme.SchemeFactory {
      public open_scanner_resultTupleScheme getScheme() {
        return new open_scanner_resultTupleScheme();
      }
    }

    private static class open_scanner_resultTupleScheme extends org.apache.thrift.scheme.TupleScheme {

      @Override
      public void write(org.apache.thrift.protocol.TProtocol prot, open_scanner_result struct) throws org.apache.thrift.TException {
        org.apache.thrift.protocol.TTupleProtocol oprot = (org.apache.thrift.protocol.TTupleProtocol) prot;
        java.util.BitSet optionals = new java.util.BitSet();
        if (struct.isSetSuccess()) {
          optionals.set(0);
        }
        oprot.writeBitSet(optionals, 1);
        if (struct.isSetSuccess()) {
          struct.success.write(oprot);
        }
      }

      @Override
      public void read(org.apache.thrift.protocol.TProtocol prot, open_scanner_result struct) throws org.apache.thrift.TException {
        org.apache.thrift.protocol.TTupleProtocol iprot = (org.apache.thrift.protocol.TTupleProtocol) prot;
        java.util.BitSet incoming = iprot.readBitSet(1);
        if (incoming.get(0)) {
          struct.success = new TScanOpenResult();
          struct.success.read(iprot);
          struct.setSuccessIsSet(true);
        }
      }
    }

    private static  S scheme(org.apache.thrift.protocol.TProtocol proto) {
      return (org.apache.thrift.scheme.StandardScheme.class.equals(proto.getScheme()) ? STANDARD_SCHEME_FACTORY : TUPLE_SCHEME_FACTORY).getScheme();
    }
  }

  public static class get_next_args implements org.apache.thrift.TBase, java.io.Serializable, Cloneable, Comparable   {
    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("get_next_args");

    private static final org.apache.thrift.protocol.TField PARAMS_FIELD_DESC = new org.apache.thrift.protocol.TField("params", org.apache.thrift.protocol.TType.STRUCT, (short)1);

    private static final org.apache.thrift.scheme.SchemeFactory STANDARD_SCHEME_FACTORY = new get_next_argsStandardSchemeFactory();
    private static final org.apache.thrift.scheme.SchemeFactory TUPLE_SCHEME_FACTORY = new get_next_argsTupleSchemeFactory();

    public @org.apache.thrift.annotation.Nullable TScanNextBatchParams params; // required

    /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
    public enum _Fields implements org.apache.thrift.TFieldIdEnum {
      PARAMS((short)1, "params");

      private static final java.util.Map byName = new java.util.HashMap();

      static {
        for (_Fields field : java.util.EnumSet.allOf(_Fields.class)) {
          byName.put(field.getFieldName(), field);
        }
      }

      /**
       * Find the _Fields constant that matches fieldId, or null if its not found.
       */
      @org.apache.thrift.annotation.Nullable
      public static _Fields findByThriftId(int fieldId) {
        switch(fieldId) {
          case 1: // PARAMS
            return PARAMS;
          default:
            return null;
        }
      }

      /**
       * Find the _Fields constant that matches fieldId, throwing an exception
       * if it is not found.
       */
      public static _Fields findByThriftIdOrThrow(int fieldId) {
        _Fields fields = findByThriftId(fieldId);
        if (fields == null) throw new java.lang.IllegalArgumentException("Field " + fieldId + " doesn't exist!");
        return fields;
      }

      /**
       * Find the _Fields constant that matches name, or null if its not found.
       */
      @org.apache.thrift.annotation.Nullable
      public static _Fields findByName(java.lang.String name) {
        return byName.get(name);
      }

      private final short _thriftId;
      private final java.lang.String _fieldName;

      _Fields(short thriftId, java.lang.String fieldName) {
        _thriftId = thriftId;
        _fieldName = fieldName;
      }

      public short getThriftFieldId() {
        return _thriftId;
      }

      public java.lang.String getFieldName() {
        return _fieldName;
      }
    }

    // isset id assignments
    public static final java.util.Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
    static {
      java.util.Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new java.util.EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
      tmpMap.put(_Fields.PARAMS, new org.apache.thrift.meta_data.FieldMetaData("params", org.apache.thrift.TFieldRequirementType.DEFAULT, 
          new org.apache.thrift.meta_data.StructMetaData(org.apache.thrift.protocol.TType.STRUCT, TScanNextBatchParams.class)));
      metaDataMap = java.util.Collections.unmodifiableMap(tmpMap);
      org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(get_next_args.class, metaDataMap);
    }

    public get_next_args() {
    }

    public get_next_args(
      TScanNextBatchParams params)
    {
      this();
      this.params = params;
    }

    /**
     * Performs a deep copy on other.
     */
    public get_next_args(get_next_args other) {
      if (other.isSetParams()) {
        this.params = new TScanNextBatchParams(other.params);
      }
    }

    public get_next_args deepCopy() {
      return new get_next_args(this);
    }

    @Override
    public void clear() {
      this.params = null;
    }

    @org.apache.thrift.annotation.Nullable
    public TScanNextBatchParams getParams() {
      return this.params;
    }

    public get_next_args setParams(@org.apache.thrift.annotation.Nullable TScanNextBatchParams params) {
      this.params = params;
      return this;
    }

    public void unsetParams() {
      this.params = null;
    }

    /** Returns true if field params is set (has been assigned a value) and false otherwise */
    public boolean isSetParams() {
      return this.params != null;
    }

    public void setParamsIsSet(boolean value) {
      if (!value) {
        this.params = null;
      }
    }

    public void setFieldValue(_Fields field, @org.apache.thrift.annotation.Nullable java.lang.Object value) {
      switch (field) {
      case PARAMS:
        if (value == null) {
          unsetParams();
        } else {
          setParams((TScanNextBatchParams)value);
        }
        break;

      }
    }

    @org.apache.thrift.annotation.Nullable
    public java.lang.Object getFieldValue(_Fields field) {
      switch (field) {
      case PARAMS:
        return getParams();

      }
      throw new java.lang.IllegalStateException();
    }

    /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
    public boolean isSet(_Fields field) {
      if (field == null) {
        throw new java.lang.IllegalArgumentException();
      }

      switch (field) {
      case PARAMS:
        return isSetParams();
      }
      throw new java.lang.IllegalStateException();
    }

    @Override
    public boolean equals(java.lang.Object that) {
      if (that == null)
        return false;
      if (that instanceof get_next_args)
        return this.equals((get_next_args)that);
      return false;
    }

    public boolean equals(get_next_args that) {
      if (that == null)
        return false;
      if (this == that)
        return true;

      boolean this_present_params = true && this.isSetParams();
      boolean that_present_params = true && that.isSetParams();
      if (this_present_params || that_present_params) {
        if (!(this_present_params && that_present_params))
          return false;
        if (!this.params.equals(that.params))
          return false;
      }

      return true;
    }

    @Override
    public int hashCode() {
      int hashCode = 1;

      hashCode = hashCode * 8191 + ((isSetParams()) ? 131071 : 524287);
      if (isSetParams())
        hashCode = hashCode * 8191 + params.hashCode();

      return hashCode;
    }

    @Override
    public int compareTo(get_next_args other) {
      if (!getClass().equals(other.getClass())) {
        return getClass().getName().compareTo(other.getClass().getName());
      }

      int lastComparison = 0;

      lastComparison = java.lang.Boolean.valueOf(isSetParams()).compareTo(other.isSetParams());
      if (lastComparison != 0) {
        return lastComparison;
      }
      if (isSetParams()) {
        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.params, other.params);
        if (lastComparison != 0) {
          return lastComparison;
        }
      }
      return 0;
    }

    @org.apache.thrift.annotation.Nullable
    public _Fields fieldForId(int fieldId) {
      return _Fields.findByThriftId(fieldId);
    }

    public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
      scheme(iprot).read(iprot, this);
    }

    public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
      scheme(oprot).write(oprot, this);
    }

    @Override
    public java.lang.String toString() {
      java.lang.StringBuilder sb = new java.lang.StringBuilder("get_next_args(");
      boolean first = true;

      sb.append("params:");
      if (this.params == null) {
        sb.append("null");
      } else {
        sb.append(this.params);
      }
      first = false;
      sb.append(")");
      return sb.toString();
    }

    public void validate() throws org.apache.thrift.TException {
      // check for required fields
      // check for sub-struct validity
      if (params != null) {
        params.validate();
      }
    }

    private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
      try {
        write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
      } catch (org.apache.thrift.TException te) {
        throw new java.io.IOException(te);
      }
    }

    private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, java.lang.ClassNotFoundException {
      try {
        read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
      } catch (org.apache.thrift.TException te) {
        throw new java.io.IOException(te);
      }
    }

    private static class get_next_argsStandardSchemeFactory implements org.apache.thrift.scheme.SchemeFactory {
      public get_next_argsStandardScheme getScheme() {
        return new get_next_argsStandardScheme();
      }
    }

    private static class get_next_argsStandardScheme extends org.apache.thrift.scheme.StandardScheme {

      public void read(org.apache.thrift.protocol.TProtocol iprot, get_next_args struct) throws org.apache.thrift.TException {
        org.apache.thrift.protocol.TField schemeField;
        iprot.readStructBegin();
        while (true)
        {
          schemeField = iprot.readFieldBegin();
          if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
            break;
          }
          switch (schemeField.id) {
            case 1: // PARAMS
              if (schemeField.type == org.apache.thrift.protocol.TType.STRUCT) {
                struct.params = new TScanNextBatchParams();
                struct.params.read(iprot);
                struct.setParamsIsSet(true);
              } else { 
                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
              }
              break;
            default:
              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
          }
          iprot.readFieldEnd();
        }
        iprot.readStructEnd();

        // check for required fields of primitive type, which can't be checked in the validate method
        struct.validate();
      }

      public void write(org.apache.thrift.protocol.TProtocol oprot, get_next_args struct) throws org.apache.thrift.TException {
        struct.validate();

        oprot.writeStructBegin(STRUCT_DESC);
        if (struct.params != null) {
          oprot.writeFieldBegin(PARAMS_FIELD_DESC);
          struct.params.write(oprot);
          oprot.writeFieldEnd();
        }
        oprot.writeFieldStop();
        oprot.writeStructEnd();
      }

    }

    private static class get_next_argsTupleSchemeFactory implements org.apache.thrift.scheme.SchemeFactory {
      public get_next_argsTupleScheme getScheme() {
        return new get_next_argsTupleScheme();
      }
    }

    private static class get_next_argsTupleScheme extends org.apache.thrift.scheme.TupleScheme {

      @Override
      public void write(org.apache.thrift.protocol.TProtocol prot, get_next_args struct) throws org.apache.thrift.TException {
        org.apache.thrift.protocol.TTupleProtocol oprot = (org.apache.thrift.protocol.TTupleProtocol) prot;
        java.util.BitSet optionals = new java.util.BitSet();
        if (struct.isSetParams()) {
          optionals.set(0);
        }
        oprot.writeBitSet(optionals, 1);
        if (struct.isSetParams()) {
          struct.params.write(oprot);
        }
      }

      @Override
      public void read(org.apache.thrift.protocol.TProtocol prot, get_next_args struct) throws org.apache.thrift.TException {
        org.apache.thrift.protocol.TTupleProtocol iprot = (org.apache.thrift.protocol.TTupleProtocol) prot;
        java.util.BitSet incoming = iprot.readBitSet(1);
        if (incoming.get(0)) {
          struct.params = new TScanNextBatchParams();
          struct.params.read(iprot);
          struct.setParamsIsSet(true);
        }
      }
    }

    private static  S scheme(org.apache.thrift.protocol.TProtocol proto) {
      return (org.apache.thrift.scheme.StandardScheme.class.equals(proto.getScheme()) ? STANDARD_SCHEME_FACTORY : TUPLE_SCHEME_FACTORY).getScheme();
    }
  }

  public static class get_next_result implements org.apache.thrift.TBase, java.io.Serializable, Cloneable, Comparable   {
    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("get_next_result");

    private static final org.apache.thrift.protocol.TField SUCCESS_FIELD_DESC = new org.apache.thrift.protocol.TField("success", org.apache.thrift.protocol.TType.STRUCT, (short)0);

    private static final org.apache.thrift.scheme.SchemeFactory STANDARD_SCHEME_FACTORY = new get_next_resultStandardSchemeFactory();
    private static final org.apache.thrift.scheme.SchemeFactory TUPLE_SCHEME_FACTORY = new get_next_resultTupleSchemeFactory();

    public @org.apache.thrift.annotation.Nullable TScanBatchResult success; // required

    /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
    public enum _Fields implements org.apache.thrift.TFieldIdEnum {
      SUCCESS((short)0, "success");

      private static final java.util.Map byName = new java.util.HashMap();

      static {
        for (_Fields field : java.util.EnumSet.allOf(_Fields.class)) {
          byName.put(field.getFieldName(), field);
        }
      }

      /**
       * Find the _Fields constant that matches fieldId, or null if its not found.
       */
      @org.apache.thrift.annotation.Nullable
      public static _Fields findByThriftId(int fieldId) {
        switch(fieldId) {
          case 0: // SUCCESS
            return SUCCESS;
          default:
            return null;
        }
      }

      /**
       * Find the _Fields constant that matches fieldId, throwing an exception
       * if it is not found.
       */
      public static _Fields findByThriftIdOrThrow(int fieldId) {
        _Fields fields = findByThriftId(fieldId);
        if (fields == null) throw new java.lang.IllegalArgumentException("Field " + fieldId + " doesn't exist!");
        return fields;
      }

      /**
       * Find the _Fields constant that matches name, or null if its not found.
       */
      @org.apache.thrift.annotation.Nullable
      public static _Fields findByName(java.lang.String name) {
        return byName.get(name);
      }

      private final short _thriftId;
      private final java.lang.String _fieldName;

      _Fields(short thriftId, java.lang.String fieldName) {
        _thriftId = thriftId;
        _fieldName = fieldName;
      }

      public short getThriftFieldId() {
        return _thriftId;
      }

      public java.lang.String getFieldName() {
        return _fieldName;
      }
    }

    // isset id assignments
    public static final java.util.Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
    static {
      java.util.Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new java.util.EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
      tmpMap.put(_Fields.SUCCESS, new org.apache.thrift.meta_data.FieldMetaData("success", org.apache.thrift.TFieldRequirementType.DEFAULT, 
          new org.apache.thrift.meta_data.StructMetaData(org.apache.thrift.protocol.TType.STRUCT, TScanBatchResult.class)));
      metaDataMap = java.util.Collections.unmodifiableMap(tmpMap);
      org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(get_next_result.class, metaDataMap);
    }

    public get_next_result() {
    }

    public get_next_result(
      TScanBatchResult success)
    {
      this();
      this.success = success;
    }

    /**
     * Performs a deep copy on other.
     */
    public get_next_result(get_next_result other) {
      if (other.isSetSuccess()) {
        this.success = new TScanBatchResult(other.success);
      }
    }

    public get_next_result deepCopy() {
      return new get_next_result(this);
    }

    @Override
    public void clear() {
      this.success = null;
    }

    @org.apache.thrift.annotation.Nullable
    public TScanBatchResult getSuccess() {
      return this.success;
    }

    public get_next_result setSuccess(@org.apache.thrift.annotation.Nullable TScanBatchResult success) {
      this.success = success;
      return this;
    }

    public void unsetSuccess() {
      this.success = null;
    }

    /** Returns true if field success is set (has been assigned a value) and false otherwise */
    public boolean isSetSuccess() {
      return this.success != null;
    }

    public void setSuccessIsSet(boolean value) {
      if (!value) {
        this.success = null;
      }
    }

    public void setFieldValue(_Fields field, @org.apache.thrift.annotation.Nullable java.lang.Object value) {
      switch (field) {
      case SUCCESS:
        if (value == null) {
          unsetSuccess();
        } else {
          setSuccess((TScanBatchResult)value);
        }
        break;

      }
    }

    @org.apache.thrift.annotation.Nullable
    public java.lang.Object getFieldValue(_Fields field) {
      switch (field) {
      case SUCCESS:
        return getSuccess();

      }
      throw new java.lang.IllegalStateException();
    }

    /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
    public boolean isSet(_Fields field) {
      if (field == null) {
        throw new java.lang.IllegalArgumentException();
      }

      switch (field) {
      case SUCCESS:
        return isSetSuccess();
      }
      throw new java.lang.IllegalStateException();
    }

    @Override
    public boolean equals(java.lang.Object that) {
      if (that == null)
        return false;
      if (that instanceof get_next_result)
        return this.equals((get_next_result)that);
      return false;
    }

    public boolean equals(get_next_result that) {
      if (that == null)
        return false;
      if (this == that)
        return true;

      boolean this_present_success = true && this.isSetSuccess();
      boolean that_present_success = true && that.isSetSuccess();
      if (this_present_success || that_present_success) {
        if (!(this_present_success && that_present_success))
          return false;
        if (!this.success.equals(that.success))
          return false;
      }

      return true;
    }

    @Override
    public int hashCode() {
      int hashCode = 1;

      hashCode = hashCode * 8191 + ((isSetSuccess()) ? 131071 : 524287);
      if (isSetSuccess())
        hashCode = hashCode * 8191 + success.hashCode();

      return hashCode;
    }

    @Override
    public int compareTo(get_next_result other) {
      if (!getClass().equals(other.getClass())) {
        return getClass().getName().compareTo(other.getClass().getName());
      }

      int lastComparison = 0;

      lastComparison = java.lang.Boolean.valueOf(isSetSuccess()).compareTo(other.isSetSuccess());
      if (lastComparison != 0) {
        return lastComparison;
      }
      if (isSetSuccess()) {
        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.success, other.success);
        if (lastComparison != 0) {
          return lastComparison;
        }
      }
      return 0;
    }

    @org.apache.thrift.annotation.Nullable
    public _Fields fieldForId(int fieldId) {
      return _Fields.findByThriftId(fieldId);
    }

    public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
      scheme(iprot).read(iprot, this);
    }

    public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
      scheme(oprot).write(oprot, this);
      }

    @Override
    public java.lang.String toString() {
      java.lang.StringBuilder sb = new java.lang.StringBuilder("get_next_result(");
      boolean first = true;

      sb.append("success:");
      if (this.success == null) {
        sb.append("null");
      } else {
        sb.append(this.success);
      }
      first = false;
      sb.append(")");
      return sb.toString();
    }

    public void validate() throws org.apache.thrift.TException {
      // check for required fields
      // check for sub-struct validity
      if (success != null) {
        success.validate();
      }
    }

    private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
      try {
        write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
      } catch (org.apache.thrift.TException te) {
        throw new java.io.IOException(te);
      }
    }

    private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, java.lang.ClassNotFoundException {
      try {
        read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
      } catch (org.apache.thrift.TException te) {
        throw new java.io.IOException(te);
      }
    }

    private static class get_next_resultStandardSchemeFactory implements org.apache.thrift.scheme.SchemeFactory {
      public get_next_resultStandardScheme getScheme() {
        return new get_next_resultStandardScheme();
      }
    }

    private static class get_next_resultStandardScheme extends org.apache.thrift.scheme.StandardScheme {

      public void read(org.apache.thrift.protocol.TProtocol iprot, get_next_result struct) throws org.apache.thrift.TException {
        org.apache.thrift.protocol.TField schemeField;
        iprot.readStructBegin();
        while (true)
        {
          schemeField = iprot.readFieldBegin();
          if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
            break;
          }
          switch (schemeField.id) {
            case 0: // SUCCESS
              if (schemeField.type == org.apache.thrift.protocol.TType.STRUCT) {
                struct.success = new TScanBatchResult();
                struct.success.read(iprot);
                struct.setSuccessIsSet(true);
              } else { 
                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
              }
              break;
            default:
              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
          }
          iprot.readFieldEnd();
        }
        iprot.readStructEnd();

        // check for required fields of primitive type, which can't be checked in the validate method
        struct.validate();
      }

      public void write(org.apache.thrift.protocol.TProtocol oprot, get_next_result struct) throws org.apache.thrift.TException {
        struct.validate();

        oprot.writeStructBegin(STRUCT_DESC);
        if (struct.success != null) {
          oprot.writeFieldBegin(SUCCESS_FIELD_DESC);
          struct.success.write(oprot);
          oprot.writeFieldEnd();
        }
        oprot.writeFieldStop();
        oprot.writeStructEnd();
      }

    }

    private static class get_next_resultTupleSchemeFactory implements org.apache.thrift.scheme.SchemeFactory {
      public get_next_resultTupleScheme getScheme() {
        return new get_next_resultTupleScheme();
      }
    }

    private static class get_next_resultTupleScheme extends org.apache.thrift.scheme.TupleScheme {

      @Override
      public void write(org.apache.thrift.protocol.TProtocol prot, get_next_result struct) throws org.apache.thrift.TException {
        org.apache.thrift.protocol.TTupleProtocol oprot = (org.apache.thrift.protocol.TTupleProtocol) prot;
        java.util.BitSet optionals = new java.util.BitSet();
        if (struct.isSetSuccess()) {
          optionals.set(0);
        }
        oprot.writeBitSet(optionals, 1);
        if (struct.isSetSuccess()) {
          struct.success.write(oprot);
        }
      }

      @Override
      public void read(org.apache.thrift.protocol.TProtocol prot, get_next_result struct) throws org.apache.thrift.TException {
        org.apache.thrift.protocol.TTupleProtocol iprot = (org.apache.thrift.protocol.TTupleProtocol) prot;
        java.util.BitSet incoming = iprot.readBitSet(1);
        if (incoming.get(0)) {
          struct.success = new TScanBatchResult();
          struct.success.read(iprot);
          struct.setSuccessIsSet(true);
        }
      }
    }

    private static  S scheme(org.apache.thrift.protocol.TProtocol proto) {
      return (org.apache.thrift.scheme.StandardScheme.class.equals(proto.getScheme()) ? STANDARD_SCHEME_FACTORY : TUPLE_SCHEME_FACTORY).getScheme();
    }
  }

  public static class close_scanner_args implements org.apache.thrift.TBase, java.io.Serializable, Cloneable, Comparable   {
    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("close_scanner_args");

    private static final org.apache.thrift.protocol.TField PARAMS_FIELD_DESC = new org.apache.thrift.protocol.TField("params", org.apache.thrift.protocol.TType.STRUCT, (short)1);

    private static final org.apache.thrift.scheme.SchemeFactory STANDARD_SCHEME_FACTORY = new close_scanner_argsStandardSchemeFactory();
    private static final org.apache.thrift.scheme.SchemeFactory TUPLE_SCHEME_FACTORY = new close_scanner_argsTupleSchemeFactory();

    public @org.apache.thrift.annotation.Nullable TScanCloseParams params; // required

    /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
    public enum _Fields implements org.apache.thrift.TFieldIdEnum {
      PARAMS((short)1, "params");

      private static final java.util.Map byName = new java.util.HashMap();

      static {
        for (_Fields field : java.util.EnumSet.allOf(_Fields.class)) {
          byName.put(field.getFieldName(), field);
        }
      }

      /**
       * Find the _Fields constant that matches fieldId, or null if its not found.
       */
      @org.apache.thrift.annotation.Nullable
      public static _Fields findByThriftId(int fieldId) {
        switch(fieldId) {
          case 1: // PARAMS
            return PARAMS;
          default:
            return null;
        }
      }

      /**
       * Find the _Fields constant that matches fieldId, throwing an exception
       * if it is not found.
       */
      public static _Fields findByThriftIdOrThrow(int fieldId) {
        _Fields fields = findByThriftId(fieldId);
        if (fields == null) throw new java.lang.IllegalArgumentException("Field " + fieldId + " doesn't exist!");
        return fields;
      }

      /**
       * Find the _Fields constant that matches name, or null if its not found.
       */
      @org.apache.thrift.annotation.Nullable
      public static _Fields findByName(java.lang.String name) {
        return byName.get(name);
      }

      private final short _thriftId;
      private final java.lang.String _fieldName;

      _Fields(short thriftId, java.lang.String fieldName) {
        _thriftId = thriftId;
        _fieldName = fieldName;
      }

      public short getThriftFieldId() {
        return _thriftId;
      }

      public java.lang.String getFieldName() {
        return _fieldName;
      }
    }

    // isset id assignments
    public static final java.util.Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
    static {
      java.util.Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new java.util.EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
      tmpMap.put(_Fields.PARAMS, new org.apache.thrift.meta_data.FieldMetaData("params", org.apache.thrift.TFieldRequirementType.DEFAULT, 
          new org.apache.thrift.meta_data.StructMetaData(org.apache.thrift.protocol.TType.STRUCT, TScanCloseParams.class)));
      metaDataMap = java.util.Collections.unmodifiableMap(tmpMap);
      org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(close_scanner_args.class, metaDataMap);
    }

    public close_scanner_args() {
    }

    public close_scanner_args(
      TScanCloseParams params)
    {
      this();
      this.params = params;
    }

    /**
     * Performs a deep copy on other.
     */
    public close_scanner_args(close_scanner_args other) {
      if (other.isSetParams()) {
        this.params = new TScanCloseParams(other.params);
      }
    }

    public close_scanner_args deepCopy() {
      return new close_scanner_args(this);
    }

    @Override
    public void clear() {
      this.params = null;
    }

    @org.apache.thrift.annotation.Nullable
    public TScanCloseParams getParams() {
      return this.params;
    }

    public close_scanner_args setParams(@org.apache.thrift.annotation.Nullable TScanCloseParams params) {
      this.params = params;
      return this;
    }

    public void unsetParams() {
      this.params = null;
    }

    /** Returns true if field params is set (has been assigned a value) and false otherwise */
    public boolean isSetParams() {
      return this.params != null;
    }

    public void setParamsIsSet(boolean value) {
      if (!value) {
        this.params = null;
      }
    }

    public void setFieldValue(_Fields field, @org.apache.thrift.annotation.Nullable java.lang.Object value) {
      switch (field) {
      case PARAMS:
        if (value == null) {
          unsetParams();
        } else {
          setParams((TScanCloseParams)value);
        }
        break;

      }
    }

    @org.apache.thrift.annotation.Nullable
    public java.lang.Object getFieldValue(_Fields field) {
      switch (field) {
      case PARAMS:
        return getParams();

      }
      throw new java.lang.IllegalStateException();
    }

    /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
    public boolean isSet(_Fields field) {
      if (field == null) {
        throw new java.lang.IllegalArgumentException();
      }

      switch (field) {
      case PARAMS:
        return isSetParams();
      }
      throw new java.lang.IllegalStateException();
    }

    @Override
    public boolean equals(java.lang.Object that) {
      if (that == null)
        return false;
      if (that instanceof close_scanner_args)
        return this.equals((close_scanner_args)that);
      return false;
    }

    public boolean equals(close_scanner_args that) {
      if (that == null)
        return false;
      if (this == that)
        return true;

      boolean this_present_params = true && this.isSetParams();
      boolean that_present_params = true && that.isSetParams();
      if (this_present_params || that_present_params) {
        if (!(this_present_params && that_present_params))
          return false;
        if (!this.params.equals(that.params))
          return false;
      }

      return true;
    }

    @Override
    public int hashCode() {
      int hashCode = 1;

      hashCode = hashCode * 8191 + ((isSetParams()) ? 131071 : 524287);
      if (isSetParams())
        hashCode = hashCode * 8191 + params.hashCode();

      return hashCode;
    }

    @Override
    public int compareTo(close_scanner_args other) {
      if (!getClass().equals(other.getClass())) {
        return getClass().getName().compareTo(other.getClass().getName());
      }

      int lastComparison = 0;

      lastComparison = java.lang.Boolean.valueOf(isSetParams()).compareTo(other.isSetParams());
      if (lastComparison != 0) {
        return lastComparison;
      }
      if (isSetParams()) {
        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.params, other.params);
        if (lastComparison != 0) {
          return lastComparison;
        }
      }
      return 0;
    }

    @org.apache.thrift.annotation.Nullable
    public _Fields fieldForId(int fieldId) {
      return _Fields.findByThriftId(fieldId);
    }

    public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
      scheme(iprot).read(iprot, this);
    }

    public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
      scheme(oprot).write(oprot, this);
    }

    @Override
    public java.lang.String toString() {
      java.lang.StringBuilder sb = new java.lang.StringBuilder("close_scanner_args(");
      boolean first = true;

      sb.append("params:");
      if (this.params == null) {
        sb.append("null");
      } else {
        sb.append(this.params);
      }
      first = false;
      sb.append(")");
      return sb.toString();
    }

    public void validate() throws org.apache.thrift.TException {
      // check for required fields
      // check for sub-struct validity
      if (params != null) {
        params.validate();
      }
    }

    private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
      try {
        write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
      } catch (org.apache.thrift.TException te) {
        throw new java.io.IOException(te);
      }
    }

    private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, java.lang.ClassNotFoundException {
      try {
        read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
      } catch (org.apache.thrift.TException te) {
        throw new java.io.IOException(te);
      }
    }

    private static class close_scanner_argsStandardSchemeFactory implements org.apache.thrift.scheme.SchemeFactory {
      public close_scanner_argsStandardScheme getScheme() {
        return new close_scanner_argsStandardScheme();
      }
    }

    private static class close_scanner_argsStandardScheme extends org.apache.thrift.scheme.StandardScheme {

      public void read(org.apache.thrift.protocol.TProtocol iprot, close_scanner_args struct) throws org.apache.thrift.TException {
        org.apache.thrift.protocol.TField schemeField;
        iprot.readStructBegin();
        while (true)
        {
          schemeField = iprot.readFieldBegin();
          if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
            break;
          }
          switch (schemeField.id) {
            case 1: // PARAMS
              if (schemeField.type == org.apache.thrift.protocol.TType.STRUCT) {
                struct.params = new TScanCloseParams();
                struct.params.read(iprot);
                struct.setParamsIsSet(true);
              } else { 
                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
              }
              break;
            default:
              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
          }
          iprot.readFieldEnd();
        }
        iprot.readStructEnd();

        // check for required fields of primitive type, which can't be checked in the validate method
        struct.validate();
      }

      public void write(org.apache.thrift.protocol.TProtocol oprot, close_scanner_args struct) throws org.apache.thrift.TException {
        struct.validate();

        oprot.writeStructBegin(STRUCT_DESC);
        if (struct.params != null) {
          oprot.writeFieldBegin(PARAMS_FIELD_DESC);
          struct.params.write(oprot);
          oprot.writeFieldEnd();
        }
        oprot.writeFieldStop();
        oprot.writeStructEnd();
      }

    }

    private static class close_scanner_argsTupleSchemeFactory implements org.apache.thrift.scheme.SchemeFactory {
      public close_scanner_argsTupleScheme getScheme() {
        return new close_scanner_argsTupleScheme();
      }
    }

    private static class close_scanner_argsTupleScheme extends org.apache.thrift.scheme.TupleScheme {

      @Override
      public void write(org.apache.thrift.protocol.TProtocol prot, close_scanner_args struct) throws org.apache.thrift.TException {
        org.apache.thrift.protocol.TTupleProtocol oprot = (org.apache.thrift.protocol.TTupleProtocol) prot;
        java.util.BitSet optionals = new java.util.BitSet();
        if (struct.isSetParams()) {
          optionals.set(0);
        }
        oprot.writeBitSet(optionals, 1);
        if (struct.isSetParams()) {
          struct.params.write(oprot);
        }
      }

      @Override
      public void read(org.apache.thrift.protocol.TProtocol prot, close_scanner_args struct) throws org.apache.thrift.TException {
        org.apache.thrift.protocol.TTupleProtocol iprot = (org.apache.thrift.protocol.TTupleProtocol) prot;
        java.util.BitSet incoming = iprot.readBitSet(1);
        if (incoming.get(0)) {
          struct.params = new TScanCloseParams();
          struct.params.read(iprot);
          struct.setParamsIsSet(true);
        }
      }
    }

    private static  S scheme(org.apache.thrift.protocol.TProtocol proto) {
      return (org.apache.thrift.scheme.StandardScheme.class.equals(proto.getScheme()) ? STANDARD_SCHEME_FACTORY : TUPLE_SCHEME_FACTORY).getScheme();
    }
  }

  public static class close_scanner_result implements org.apache.thrift.TBase, java.io.Serializable, Cloneable, Comparable   {
    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("close_scanner_result");

    private static final org.apache.thrift.protocol.TField SUCCESS_FIELD_DESC = new org.apache.thrift.protocol.TField("success", org.apache.thrift.protocol.TType.STRUCT, (short)0);

    private static final org.apache.thrift.scheme.SchemeFactory STANDARD_SCHEME_FACTORY = new close_scanner_resultStandardSchemeFactory();
    private static final org.apache.thrift.scheme.SchemeFactory TUPLE_SCHEME_FACTORY = new close_scanner_resultTupleSchemeFactory();

    public @org.apache.thrift.annotation.Nullable TScanCloseResult success; // required

    /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
    public enum _Fields implements org.apache.thrift.TFieldIdEnum {
      SUCCESS((short)0, "success");

      private static final java.util.Map byName = new java.util.HashMap();

      static {
        for (_Fields field : java.util.EnumSet.allOf(_Fields.class)) {
          byName.put(field.getFieldName(), field);
        }
      }

      /**
       * Find the _Fields constant that matches fieldId, or null if its not found.
       */
      @org.apache.thrift.annotation.Nullable
      public static _Fields findByThriftId(int fieldId) {
        switch(fieldId) {
          case 0: // SUCCESS
            return SUCCESS;
          default:
            return null;
        }
      }

      /**
       * Find the _Fields constant that matches fieldId, throwing an exception
       * if it is not found.
       */
      public static _Fields findByThriftIdOrThrow(int fieldId) {
        _Fields fields = findByThriftId(fieldId);
        if (fields == null) throw new java.lang.IllegalArgumentException("Field " + fieldId + " doesn't exist!");
        return fields;
      }

      /**
       * Find the _Fields constant that matches name, or null if its not found.
       */
      @org.apache.thrift.annotation.Nullable
      public static _Fields findByName(java.lang.String name) {
        return byName.get(name);
      }

      private final short _thriftId;
      private final java.lang.String _fieldName;

      _Fields(short thriftId, java.lang.String fieldName) {
        _thriftId = thriftId;
        _fieldName = fieldName;
      }

      public short getThriftFieldId() {
        return _thriftId;
      }

      public java.lang.String getFieldName() {
        return _fieldName;
      }
    }

    // isset id assignments
    public static final java.util.Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
    static {
      java.util.Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new java.util.EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
      tmpMap.put(_Fields.SUCCESS, new org.apache.thrift.meta_data.FieldMetaData("success", org.apache.thrift.TFieldRequirementType.DEFAULT, 
          new org.apache.thrift.meta_data.StructMetaData(org.apache.thrift.protocol.TType.STRUCT, TScanCloseResult.class)));
      metaDataMap = java.util.Collections.unmodifiableMap(tmpMap);
      org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(close_scanner_result.class, metaDataMap);
    }

    public close_scanner_result() {
    }

    public close_scanner_result(
      TScanCloseResult success)
    {
      this();
      this.success = success;
    }

    /**
     * Performs a deep copy on other.
     */
    public close_scanner_result(close_scanner_result other) {
      if (other.isSetSuccess()) {
        this.success = new TScanCloseResult(other.success);
      }
    }

    public close_scanner_result deepCopy() {
      return new close_scanner_result(this);
    }

    @Override
    public void clear() {
      this.success = null;
    }

    @org.apache.thrift.annotation.Nullable
    public TScanCloseResult getSuccess() {
      return this.success;
    }

    public close_scanner_result setSuccess(@org.apache.thrift.annotation.Nullable TScanCloseResult success) {
      this.success = success;
      return this;
    }

    public void unsetSuccess() {
      this.success = null;
    }

    /** Returns true if field success is set (has been assigned a value) and false otherwise */
    public boolean isSetSuccess() {
      return this.success != null;
    }

    public void setSuccessIsSet(boolean value) {
      if (!value) {
        this.success = null;
      }
    }

    public void setFieldValue(_Fields field, @org.apache.thrift.annotation.Nullable java.lang.Object value) {
      switch (field) {
      case SUCCESS:
        if (value == null) {
          unsetSuccess();
        } else {
          setSuccess((TScanCloseResult)value);
        }
        break;

      }
    }

    @org.apache.thrift.annotation.Nullable
    public java.lang.Object getFieldValue(_Fields field) {
      switch (field) {
      case SUCCESS:
        return getSuccess();

      }
      throw new java.lang.IllegalStateException();
    }

    /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
    public boolean isSet(_Fields field) {
      if (field == null) {
        throw new java.lang.IllegalArgumentException();
      }

      switch (field) {
      case SUCCESS:
        return isSetSuccess();
      }
      throw new java.lang.IllegalStateException();
    }

    @Override
    public boolean equals(java.lang.Object that) {
      if (that == null)
        return false;
      if (that instanceof close_scanner_result)
        return this.equals((close_scanner_result)that);
      return false;
    }

    public boolean equals(close_scanner_result that) {
      if (that == null)
        return false;
      if (this == that)
        return true;

      boolean this_present_success = true && this.isSetSuccess();
      boolean that_present_success = true && that.isSetSuccess();
      if (this_present_success || that_present_success) {
        if (!(this_present_success && that_present_success))
          return false;
        if (!this.success.equals(that.success))
          return false;
      }

      return true;
    }

    @Override
    public int hashCode() {
      int hashCode = 1;

      hashCode = hashCode * 8191 + ((isSetSuccess()) ? 131071 : 524287);
      if (isSetSuccess())
        hashCode = hashCode * 8191 + success.hashCode();

      return hashCode;
    }

    @Override
    public int compareTo(close_scanner_result other) {
      if (!getClass().equals(other.getClass())) {
        return getClass().getName().compareTo(other.getClass().getName());
      }

      int lastComparison = 0;

      lastComparison = java.lang.Boolean.valueOf(isSetSuccess()).compareTo(other.isSetSuccess());
      if (lastComparison != 0) {
        return lastComparison;
      }
      if (isSetSuccess()) {
        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.success, other.success);
        if (lastComparison != 0) {
          return lastComparison;
        }
      }
      return 0;
    }

    @org.apache.thrift.annotation.Nullable
    public _Fields fieldForId(int fieldId) {
      return _Fields.findByThriftId(fieldId);
    }

    public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
      scheme(iprot).read(iprot, this);
    }

    public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
      scheme(oprot).write(oprot, this);
      }

    @Override
    public java.lang.String toString() {
      java.lang.StringBuilder sb = new java.lang.StringBuilder("close_scanner_result(");
      boolean first = true;

      sb.append("success:");
      if (this.success == null) {
        sb.append("null");
      } else {
        sb.append(this.success);
      }
      first = false;
      sb.append(")");
      return sb.toString();
    }

    public void validate() throws org.apache.thrift.TException {
      // check for required fields
      // check for sub-struct validity
      if (success != null) {
        success.validate();
      }
    }

    private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
      try {
        write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
      } catch (org.apache.thrift.TException te) {
        throw new java.io.IOException(te);
      }
    }

    private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, java.lang.ClassNotFoundException {
      try {
        read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
      } catch (org.apache.thrift.TException te) {
        throw new java.io.IOException(te);
      }
    }

    private static class close_scanner_resultStandardSchemeFactory implements org.apache.thrift.scheme.SchemeFactory {
      public close_scanner_resultStandardScheme getScheme() {
        return new close_scanner_resultStandardScheme();
      }
    }

    private static class close_scanner_resultStandardScheme extends org.apache.thrift.scheme.StandardScheme {

      public void read(org.apache.thrift.protocol.TProtocol iprot, close_scanner_result struct) throws org.apache.thrift.TException {
        org.apache.thrift.protocol.TField schemeField;
        iprot.readStructBegin();
        while (true)
        {
          schemeField = iprot.readFieldBegin();
          if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
            break;
          }
          switch (schemeField.id) {
            case 0: // SUCCESS
              if (schemeField.type == org.apache.thrift.protocol.TType.STRUCT) {
                struct.success = new TScanCloseResult();
                struct.success.read(iprot);
                struct.setSuccessIsSet(true);
              } else { 
                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
              }
              break;
            default:
              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
          }
          iprot.readFieldEnd();
        }
        iprot.readStructEnd();

        // check for required fields of primitive type, which can't be checked in the validate method
        struct.validate();
      }

      public void write(org.apache.thrift.protocol.TProtocol oprot, close_scanner_result struct) throws org.apache.thrift.TException {
        struct.validate();

        oprot.writeStructBegin(STRUCT_DESC);
        if (struct.success != null) {
          oprot.writeFieldBegin(SUCCESS_FIELD_DESC);
          struct.success.write(oprot);
          oprot.writeFieldEnd();
        }
        oprot.writeFieldStop();
        oprot.writeStructEnd();
      }

    }

    private static class close_scanner_resultTupleSchemeFactory implements org.apache.thrift.scheme.SchemeFactory {
      public close_scanner_resultTupleScheme getScheme() {
        return new close_scanner_resultTupleScheme();
      }
    }

    private static class close_scanner_resultTupleScheme extends org.apache.thrift.scheme.TupleScheme {

      @Override
      public void write(org.apache.thrift.protocol.TProtocol prot, close_scanner_result struct) throws org.apache.thrift.TException {
        org.apache.thrift.protocol.TTupleProtocol oprot = (org.apache.thrift.protocol.TTupleProtocol) prot;
        java.util.BitSet optionals = new java.util.BitSet();
        if (struct.isSetSuccess()) {
          optionals.set(0);
        }
        oprot.writeBitSet(optionals, 1);
        if (struct.isSetSuccess()) {
          struct.success.write(oprot);
        }
      }

      @Override
      public void read(org.apache.thrift.protocol.TProtocol prot, close_scanner_result struct) throws org.apache.thrift.TException {
        org.apache.thrift.protocol.TTupleProtocol iprot = (org.apache.thrift.protocol.TTupleProtocol) prot;
        java.util.BitSet incoming = iprot.readBitSet(1);
        if (incoming.get(0)) {
          struct.success = new TScanCloseResult();
          struct.success.read(iprot);
          struct.setSuccessIsSet(true);
        }
      }
    }

    private static  S scheme(org.apache.thrift.protocol.TProtocol proto) {
      return (org.apache.thrift.scheme.StandardScheme.class.equals(proto.getScheme()) ? STANDARD_SCHEME_FACTORY : TUPLE_SCHEME_FACTORY).getScheme();
    }
  }

}