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package io.ebeaninternal.server.querydefn;

import io.ebean.CacheMode;
import io.ebean.CountDistinctOrder;
import io.ebean.DtoQuery;
import io.ebean.Expression;
import io.ebean.ExpressionFactory;
import io.ebean.ExpressionList;
import io.ebean.FetchConfig;
import io.ebean.FetchPath;
import io.ebean.FutureIds;
import io.ebean.FutureList;
import io.ebean.FutureRowCount;
import io.ebean.OrderBy;
import io.ebean.OrderBy.Property;
import io.ebean.PagedList;
import io.ebean.PersistenceContextScope;
import io.ebean.ProfileLocation;
import io.ebean.Query;
import io.ebean.QueryIterator;
import io.ebean.QueryType;
import io.ebean.RawSql;
import io.ebean.Version;
import io.ebean.bean.CallStack;
import io.ebean.bean.ObjectGraphNode;
import io.ebean.bean.ObjectGraphOrigin;
import io.ebean.bean.PersistenceContext;
import io.ebean.event.BeanQueryRequest;
import io.ebean.event.readaudit.ReadEvent;
import io.ebean.plugin.BeanType;
import io.ebeaninternal.api.BindParams;
import io.ebeaninternal.api.CQueryPlanKey;
import io.ebeaninternal.api.HashQuery;
import io.ebeaninternal.api.ManyWhereJoins;
import io.ebeaninternal.api.NaturalKeyQueryData;
import io.ebeaninternal.api.SpiEbeanServer;
import io.ebeaninternal.api.SpiExpression;
import io.ebeaninternal.api.SpiExpressionList;
import io.ebeaninternal.api.SpiExpressionValidation;
import io.ebeaninternal.api.SpiNamedParam;
import io.ebeaninternal.api.SpiQuery;
import io.ebeaninternal.api.SpiQuerySecondary;
import io.ebeaninternal.server.autotune.ProfilingListener;
import io.ebeaninternal.server.core.SpiOrmQueryRequest;
import io.ebeaninternal.server.deploy.BeanDescriptor;
import io.ebeaninternal.server.deploy.BeanPropertyAssocMany;
import io.ebeaninternal.server.deploy.TableJoin;
import io.ebeaninternal.server.expression.DefaultExpressionList;
import io.ebeaninternal.server.expression.SimpleExpression;
import io.ebeaninternal.server.query.CancelableQuery;
import io.ebeaninternal.server.query.NativeSqlQueryPlanKey;
import io.ebeaninternal.server.rawsql.SpiRawSql;

import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.function.Consumer;
import java.util.function.Predicate;

/**
 * Default implementation of an Object Relational query.
 */
public class DefaultOrmQuery implements SpiQuery {

  private static final String DEFAULT_QUERY_NAME = "default";

  private static final FetchConfig FETCH_QUERY = new FetchConfig().query();

  private static final FetchConfig FETCH_LAZY = new FetchConfig().lazy();

  private final Class beanType;

  private final BeanDescriptor beanDescriptor;

  private final SpiEbeanServer server;

  private final ExpressionFactory expressionFactory;

  /**
   * For lazy loading of ManyToMany we need to add a join to the intersection table. This is that
   * join to the intersection table.
   */
  private TableJoin m2mIncludeJoin;

  private ProfilingListener profilingListener;

  private boolean cancelled;

  private CancelableQuery cancelableQuery;

  private Type type;

  private String label;

  private Mode mode = Mode.NORMAL;

  private Object tenantId;

  /**
   * Holds query in structured form.
   */
  private OrmQueryDetail detail;

  private int maxRows;

  private int firstRow;

  /**
   * Set to true to disable lazy loading on the object graph returned.
   */
  private boolean disableLazyLoading;

  /**
   * Lazy loading batch size (can override server wide default).
   */
  private int lazyLoadBatchSize;

  private OrderBy orderBy;

  private String loadMode;

  private String loadDescription;

  private String generatedSql;

  private String lazyLoadProperty;

  private String lazyLoadManyPath;

  /**
   * Flag set for report/DTO beans when we may choose to explicitly include the Id property.
   */
  private boolean manualId;

  /**
   * Set to true by a user wanting a DISTINCT query (id property must be excluded).
   */
  private boolean distinct;

  /**
   * Set to true internally by Ebean when it needs the DISTINCT keyword added to the query (id
   * property still expected).
   */
  private boolean sqlDistinct;

  /**
   * Set to true if this is a future fetch using background threads.
   */
  private boolean futureFetch;

  /**
   * Only used for read auditing with findFutureList() query.
   */
  private ReadEvent futureFetchAudit;

  private int timeout;

  /**
   * The property used to get the key value for a Map.
   */
  private String mapKey;

  /**
   * Used for find by id type query.
   */
  private Object id;

  private Map namedParams;

  /**
   * Bind parameters when using the query language.
   */
  private BindParams bindParams;

  private DefaultExpressionList textExpressions;

  private DefaultExpressionList whereExpressions;

  private DefaultExpressionList havingExpressions;

  private boolean asOfBaseTable;

  private int asOfTableCount;

  /**
   * Set for flashback style 'as of' query.
   */
  private Timestamp asOf;

  private TemporalMode temporalMode = TemporalMode.CURRENT;

  private Timestamp versionsStart;
  private Timestamp versionsEnd;

  private List softDeletePredicates;

  private boolean disableReadAudit;

  private int bufferFetchSizeHint;

  private boolean usageProfiling = true;

  private CacheMode useBeanCache = CacheMode.AUTO;

  private CacheMode useQueryCache = CacheMode.OFF;

  private Boolean readOnly;

  private PersistenceContextScope persistenceContextScope;

  /**
   * Allow for explicit on off or null for default.
   */
  private Boolean autoTune;

  /**
   * For update mode.
   */
  private ForUpdate forUpdate;

  private boolean singleAttribute;

  private CountDistinctOrder countDistinctOrder;

  /**
   * Set to true if this query has been tuned by autoTune.
   */
  private boolean autoTuned;

  /**
   * Root table alias. For {@link Query#alias(String)} command.
   */
  private String rootTableAlias;

  /**
   * The node of the bean or collection that fired lazy loading. Not null if profiling is on and
   * this query is for lazy loading. Used to hook back a lazy loading query to the "original" query
   * point.
   */
  private ObjectGraphNode parentNode;

  private BeanPropertyAssocMany lazyLoadForParentsProperty;

  /**
   * Hash of final query after AutoTune tuning.
   */
  private CQueryPlanKey queryPlanKey;

  private PersistenceContext persistenceContext;

  private ManyWhereJoins manyWhereJoins;

  private SpiRawSql rawSql;

  private boolean useDocStore;

  private String docIndexName;

  private OrmUpdateProperties updateProperties;

  private String nativeSql;

  private boolean orderById;

  /**
   * Identity the query for profiling purposes (expected to be unique for a bean type).
   */
  private short profileId;

  private ProfileLocation profileLocation;

  public DefaultOrmQuery(BeanDescriptor desc, SpiEbeanServer server, ExpressionFactory expressionFactory) {
    this.beanDescriptor = desc;
    this.beanType = desc.getBeanType();
    this.server = server;
    this.orderById = server.getServerConfig().isDefaultOrderById();
    this.expressionFactory = expressionFactory;
    this.detail = new OrmQueryDetail();
  }

  public void setNativeSql(String nativeSql) {
    this.nativeSql = nativeSql;
  }

  @Override
  public  DtoQuery asDto(Class dtoClass) {
    return server.findDto(dtoClass, this);
  }

  @Override
  public BeanDescriptor getBeanDescriptor() {
    return beanDescriptor;
  }


  @Override
  public boolean isFindAll() {
    return whereExpressions == null && nativeSql == null && rawSql == null;
  }

  @Override
  public boolean isFindById() {
    if (id == null && whereExpressions != null) {
      id = whereExpressions.idEqualTo(beanDescriptor.getIdName());
      if (id != null) {
        whereExpressions = null;
      }
    }
    return id != null;
  }

  @Override
  public String profileEventId() {
    switch (mode) {
      case LAZYLOAD_BEAN: return FIND_ONE_LAZY;
      case LAZYLOAD_MANY: return FIND_MANY_LAZY;
      default:
        return type.profileEventId();
    }
  }

  @Override
  public short getProfileId() {
    return profileId;
  }

  @Override
  public Query setProfileId(int profileId) {
    this.profileId = (short)profileId;
    return this;
  }

  @Override
  public Query setProfileLocation(ProfileLocation profileLocation) {
    this.profileLocation = profileLocation;
    return this;
  }

  @Override
  public String getLabel() {
    return label;
  }

  @Override
  public Query setLabel(String label) {
    this.label = label;
    return this;
  }

  @Override
  public boolean isAutoTunable() {
    return nativeSql == null && beanDescriptor.isAutoTunable();
  }

  @Override
  public DefaultOrmQuery setUseDocStore(boolean useDocStore) {
    this.useDocStore = useDocStore;
    return this;
  }

  @Override
  public boolean isUseDocStore() {
    return useDocStore;
  }

  @Override
  public Query apply(FetchPath fetchPath) {
    fetchPath.apply(this);
    return this;
  }

  @Override
  public void addSoftDeletePredicate(String softDeletePredicate) {
    if (softDeletePredicates == null) {
      softDeletePredicates = new ArrayList<>();
    }
    softDeletePredicates.add(softDeletePredicate);
  }

  @Override
  public List getSoftDeletePredicates() {
    return softDeletePredicates;
  }

  @Override
  public boolean isAsOfBaseTable() {
    return asOfBaseTable;
  }

  @Override
  public void setAsOfBaseTable() {
    this.asOfBaseTable = true;
  }

  @Override
  public void incrementAsOfTableCount() {
    asOfTableCount++;
  }

  @Override
  public int getAsOfTableCount() {
    return asOfTableCount;
  }

  @Override
  public Timestamp getAsOf() {
    return asOf;
  }

  @Override
  public DefaultOrmQuery asOf(Timestamp asOfDateTime) {
    this.temporalMode = (asOfDateTime != null) ? TemporalMode.AS_OF : TemporalMode.CURRENT;
    this.asOf = asOfDateTime;
    return this;
  }

  @Override
  public DefaultOrmQuery asDraft() {
    this.temporalMode = TemporalMode.DRAFT;
    this.useBeanCache = CacheMode.OFF;
    return this;
  }

  @Override
  public DefaultOrmQuery setIncludeSoftDeletes() {
    this.temporalMode = TemporalMode.SOFT_DELETED;
    return this;
  }

  @Override
  public Query setDocIndexName(String indexName) {
    this.docIndexName = indexName;
    this.useDocStore = true;
    return this;
  }

  @Override
  public String getDocIndexName() {
    return docIndexName;
  }

  @Override
  public SpiRawSql getRawSql() {
    return rawSql;
  }

  @Override
  public DefaultOrmQuery setRawSql(RawSql rawSql) {
    this.rawSql = (SpiRawSql)rawSql;
    return this;
  }

  @Override
  public String getOriginKey() {
    if (parentNode == null || parentNode.getOriginQueryPoint() == null) {
      return null;
    } else {
      return parentNode.getOriginQueryPoint().getKey();
    }
  }

  @Override
  public int getLazyLoadBatchSize() {
    return lazyLoadBatchSize;
  }

  @Override
  public Query setLazyLoadBatchSize(int lazyLoadBatchSize) {
    this.lazyLoadBatchSize = lazyLoadBatchSize;
    return this;
  }

  @Override
  public String getLazyLoadProperty() {
    return lazyLoadProperty;
  }

  @Override
  public void setLazyLoadProperty(String lazyLoadProperty) {
    this.lazyLoadProperty = lazyLoadProperty;
  }

  @Override
  public ExpressionFactory getExpressionFactory() {
    return expressionFactory;
  }

  private void createExtraJoinsToSupportManyWhereClause() {
    manyWhereJoins = new ManyWhereJoins();
    if (whereExpressions != null) {
      whereExpressions.containsMany(beanDescriptor, manyWhereJoins);
    }
    if (havingExpressions != null) {
      havingExpressions.containsMany(beanDescriptor, manyWhereJoins);
    }
  }

  /**
   * Return the extra joins required to support the where clause for 'Many' properties.
   */
  @Override
  public ManyWhereJoins getManyWhereJoins() {
    return manyWhereJoins;
  }

  /**
   * Return true if select all properties was used to ensure the property invoking a lazy load was
   * included in the query.
   */
  @Override
  public boolean selectAllForLazyLoadProperty() {
    if (lazyLoadProperty != null) {
      if (!detail.containsProperty(lazyLoadProperty)) {
        detail.select("*");
        return true;
      }
    }
    return false;
  }

  private List removeQueryJoins() {
    List queryJoins = detail.removeSecondaryQueries();
    if (queryJoins != null) {
      if (orderBy != null) {
        // remove any orderBy properties that relate to
        // paths of the secondary queries
        for (OrmQueryProperties joinPath : queryJoins) {
          // loop through the orderBy properties and
          // move any ones related to the query join
          List properties = orderBy.getProperties();
          Iterator it = properties.iterator();
          while (it.hasNext()) {
            Property property = it.next();
            if (property.getProperty().startsWith(joinPath.getPath())) {
              // remove this orderBy segment and
              // add it to the secondary join
              it.remove();
              joinPath.addSecJoinOrderProperty(property);
            }
          }
        }
      }
    }
    return queryJoins;
  }

  private List removeLazyJoins() {
    return detail.removeSecondaryLazyQueries();
  }

  @Override
  public void setLazyLoadManyPath(String lazyLoadManyPath) {
    this.lazyLoadManyPath = lazyLoadManyPath;
  }

  @Override
  public SpiQuerySecondary convertJoins() {
    if (!useDocStore) {
      createExtraJoinsToSupportManyWhereClause();
    }
    markQueryJoins();
    return new OrmQuerySecondary(removeQueryJoins(), removeLazyJoins());
  }

  /**
   * Limit the number of fetch joins to Many properties, mark as query joins as needed.
   */
  private void markQueryJoins() {
    detail.markQueryJoins(beanDescriptor, lazyLoadManyPath, isAllowOneManyFetch(), type != Type.ATTRIBUTE);
  }

  private boolean isAllowOneManyFetch() {

    if (Mode.LAZYLOAD_MANY == getMode()) {
      return false;
    } else if (hasMaxRowsOrFirstRow() && !isRawSql()) {
      return false;
    }
    return true;
  }

  @Override
  public void setDefaultSelectClause() {
    if (type != Type.ATTRIBUTE) {
      detail.setDefaultSelectClause(beanDescriptor);
    } else if (!detail.hasSelectClause()) {
      // explicit empty select when single attribute query on non-root fetch path
      detail.setEmptyBase();
    }
  }

  @Override
  public void setTenantId(Object tenantId) {
    this.tenantId = tenantId;
  }

  @Override
  public Object getTenantId() {
    return tenantId;
  }

  @Override
  public void setDetail(OrmQueryDetail detail) {
    this.detail = detail;
  }

  @Override
  public boolean tuneFetchProperties(OrmQueryDetail tunedDetail) {
    return detail.tuneFetchProperties(tunedDetail);
  }

  @Override
  public OrmQueryDetail getDetail() {
    return detail;
  }

  @Override
  public ExpressionList filterMany(String prop) {

    OrmQueryProperties chunk = detail.getChunk(prop, true);
    return chunk.filterMany(this);
  }

  @Override
  public void setFilterMany(String prop, ExpressionList filterMany) {
    if (filterMany != null) {
      OrmQueryProperties chunk = detail.getChunk(prop, true);
      chunk.setFilterMany((SpiExpressionList) filterMany);
    }
  }

  @Override
  public void prepareDocNested() {
    if (textExpressions != null) {
      textExpressions.prepareDocNested(beanDescriptor);
    }
    if (whereExpressions != null) {
      whereExpressions.prepareDocNested(beanDescriptor);
    }
  }

  /**
   * Setup to be a delete query.
   */
  @Override
  public void setDelete() {
    // unset any paging and select on the id in the case where the query
    // includes joins and we use - delete ... where id in (...)
    maxRows = 0;
    firstRow = 0;
    forUpdate = null;
    rootTableAlias = "${RTA}"; // alias we remove later
    setSelectId();
  }

  /**
   * Set the select clause to select the Id property.
   */
  @Override
  public void setSelectId() {
    // clear select and fetch joins..
    detail.clear();
    select(beanDescriptor.getIdBinder().getIdProperty());
  }

  @Override
  public void setSingleAttribute() {
    this.singleAttribute = true;
  }

  /**
   * Return true if this is a single attribute query.
   */
  @Override
  public boolean isSingleAttribute() {
    return singleAttribute;
  }

  @Override
  public CountDistinctOrder getCountDistinctOrder() {
    return countDistinctOrder;
  }

  /**
   * Return true if the Id should be included in the query.
   */
  @Override
  public boolean isWithId() {
    return !manualId && !distinct && !singleAttribute;
  }

  @Override
  public NaturalKeyQueryData naturalKey() {

    if (whereExpressions == null) {
      return null;
    }
    String[] naturalKey = beanDescriptor.getNaturalKey();
    if (naturalKey == null || naturalKey.length == 0) {
      return null;
    }

    NaturalKeyQueryData data = new NaturalKeyQueryData<>(naturalKey);
    for (SpiExpression expression : whereExpressions.getUnderlyingList()) {
      // must be eq or in
      if (!expression.naturalKey(data)) {
        return null;
      }
    }

    return data;
  }

  @Override
  public NaturalKeyBindParam getNaturalKeyBindParam() {
    NaturalKeyBindParam namedBind = null;
    if (bindParams != null) {
      namedBind = bindParams.getNaturalKeyBindParam();
      if (namedBind == null) {
        return null;
      }
    }

    if (whereExpressions != null) {
      List exprList = whereExpressions.internalList();
      if (exprList.size() > 1) {
        return null;
      } else if (exprList.isEmpty()) {
        return namedBind;
      } else {
        if (namedBind != null) {
          return null;
        }
        SpiExpression se = exprList.get(0);
        if (se instanceof SimpleExpression) {
          SimpleExpression e = (SimpleExpression) se;
          if (e.isOpEquals()) {
            return new NaturalKeyBindParam(e.getPropName(), e.getValue());
          }
        }
      }
    }
    return null;
  }

  @Override
  public DefaultOrmQuery copy() {
    return copy(server);
  }

  @Override
  public DefaultOrmQuery copy(SpiEbeanServer server) {
    DefaultOrmQuery copy = new DefaultOrmQuery<>(beanDescriptor, server, expressionFactory);
    copy.m2mIncludeJoin = m2mIncludeJoin;
    copy.profilingListener = profilingListener;
    copy.profileLocation = profileLocation;

    copy.rootTableAlias = rootTableAlias;
    copy.distinct = distinct;
    copy.sqlDistinct = sqlDistinct;
    copy.timeout = timeout;
    copy.mapKey = mapKey;
    copy.id = id;
    copy.useBeanCache = useBeanCache;
    copy.useQueryCache = useQueryCache;
    copy.readOnly = readOnly;
    if (detail != null) {
      copy.detail = detail.copy();
    }
    copy.temporalMode = temporalMode;
    copy.firstRow = firstRow;
    copy.maxRows = maxRows;
    if (orderBy != null) {
      copy.orderBy = orderBy.copy();
    }
    copy.orderById = orderById;
    if (bindParams != null) {
      copy.bindParams = bindParams.copy();
    }
    if (whereExpressions != null) {
      copy.whereExpressions = whereExpressions.copy(copy);
    }
    if (havingExpressions != null) {
      copy.havingExpressions = havingExpressions.copy(copy);
    }
    copy.persistenceContextScope = persistenceContextScope;
    copy.usageProfiling = usageProfiling;
    copy.autoTune = autoTune;
    copy.parentNode = parentNode;
    copy.forUpdate = forUpdate;
    copy.rawSql = rawSql;
    return copy;
  }

  @Override
  public Query setPersistenceContextScope(PersistenceContextScope scope) {
    this.persistenceContextScope = scope;
    return this;
  }

  @Override
  public PersistenceContextScope getPersistenceContextScope() {
    return persistenceContextScope;
  }

  @Override
  public Type getType() {
    return type;
  }

  @Override
  public void setType(Type type) {
    this.type = type;
  }

  @Override
  public String getLoadDescription() {
    return loadDescription;
  }

  @Override
  public String getLoadMode() {
    return loadMode;
  }

  @Override
  public void setLoadDescription(String loadMode, String loadDescription) {
    this.loadMode = loadMode;
    this.loadDescription = loadDescription;
  }

  /**
   * Return the TransactionContext.
   * 

* If no TransactionContext is present on the query then the TransactionContext from the * Transaction is used (transaction scoped persistence context). *

*/ @Override public PersistenceContext getPersistenceContext() { return persistenceContext; } /** * Set an explicit TransactionContext (typically for a refresh query). *

* If no TransactionContext is present on the query then the TransactionContext from the * Transaction is used (transaction scoped persistence context). *

*/ @Override public void setPersistenceContext(PersistenceContext persistenceContext) { this.persistenceContext = persistenceContext; } @Override public void setLazyLoadForParents(BeanPropertyAssocMany many) { this.lazyLoadForParentsProperty = many; } @Override public BeanPropertyAssocMany getLazyLoadMany() { return lazyLoadForParentsProperty; } /** * Return true if the query detail has neither select or joins specified. */ @Override public boolean isDetailEmpty() { return detail.isEmpty(); } @Override public boolean isAutoTuned() { return autoTuned; } @Override public void setAutoTuned(boolean autoTuned) { this.autoTuned = autoTuned; } @Override public Boolean isAutoTune() { return autoTune; } @Override public void setDefaultRawSqlIfRequired() { if (beanDescriptor.isRawSqlBased() && rawSql == null) { rawSql = beanDescriptor.getNamedRawSql(DEFAULT_QUERY_NAME); } } @Override public DefaultOrmQuery setAutoTune(boolean autoTune) { this.autoTune = autoTune; return this; } @Override public DefaultOrmQuery setForUpdate(boolean forUpdate) { this.forUpdate = (forUpdate) ? ForUpdate.BASE : null; this.useBeanCache = CacheMode.OFF; return this; } @Override public DefaultOrmQuery forUpdate() { return setForUpdateWithMode(ForUpdate.BASE); } @Override public DefaultOrmQuery forUpdateNoWait() { return setForUpdateWithMode(ForUpdate.NOWAIT); } @Override public DefaultOrmQuery forUpdateSkipLocked() { return setForUpdateWithMode(ForUpdate.SKIPLOCKED); } private DefaultOrmQuery setForUpdateWithMode(ForUpdate mode) { this.forUpdate = mode; this.useBeanCache = CacheMode.OFF; return this; } @Override public boolean isForUpdate() { return forUpdate != null; } @Override public ForUpdate getForUpdateMode() { return forUpdate; } @Override public ProfilingListener getProfilingListener() { return profilingListener; } @Override public void setProfilingListener(ProfilingListener profilingListener) { this.profilingListener = profilingListener; } @Override public QueryType getQueryType() { if (type != null) { switch (type) { case DELETE: return QueryType.DELETE; case UPDATE: return QueryType.UPDATE; } } return QueryType.FIND; } @Override public Mode getMode() { return mode; } @Override public TemporalMode getTemporalMode() { return temporalMode; } @Override public boolean isAsOfQuery() { return asOf != null; } @Override public boolean isAsDraft() { return TemporalMode.DRAFT == temporalMode; } @Override public boolean isIncludeSoftDeletes() { return TemporalMode.SOFT_DELETED == temporalMode; } @Override public void setMode(Mode mode) { this.mode = mode; } @Override public boolean isUsageProfiling() { return usageProfiling; } @Override public void setUsageProfiling(boolean usageProfiling) { this.usageProfiling = usageProfiling; } @Override public void setParentNode(ObjectGraphNode parentNode) { this.parentNode = parentNode; } @Override public ObjectGraphNode getParentNode() { return parentNode; } @Override public ObjectGraphNode setOrigin(CallStack callStack) { // create a 'origin' which links this query to the profiling information ObjectGraphOrigin o = new ObjectGraphOrigin(calculateOriginQueryHash(), callStack, beanType.getName()); parentNode = new ObjectGraphNode(o, null); return parentNode; } /** * Calculate a hash for use in determining the ObjectGraphOrigin. *

* This should be quite a stable hash as most uniqueness is determined by the CallStack, so we * only use the bean type and overall query type. *

*

* This stable hash allows the query to be changed (joins added etc) without losing the already * collected usage profiling. *

*/ private int calculateOriginQueryHash() { int hc = beanType.getName().hashCode(); hc = hc * 92821 + (type == null ? 0 : type.ordinal()); return hc; } /** * Calculate the query hash for either AutoTune query tuning or Query Plan caching. */ CQueryPlanKey createQueryPlanKey() { if (isNativeSql()) { queryPlanKey = new NativeSqlQueryPlanKey(nativeSql + "-" + firstRow + "-" + maxRows); } else { queryPlanKey = new OrmQueryPlanKey(planDescription(), maxRows, firstRow, rawSql); } return queryPlanKey; } private String planDescription() { StringBuilder sb = new StringBuilder(300); if (type != null) { sb.append("t:").append(type.ordinal()); } if (useDocStore) { sb.append(",ds:"); } if (beanDescriptor.getDiscValue() != null) { sb.append(",disc:").append(beanDescriptor.getDiscValue()); } if (temporalMode != SpiQuery.TemporalMode.CURRENT) { sb.append(",temp:").append(temporalMode.ordinal()); } if (forUpdate != null) { sb.append(",forUpd:").append(forUpdate.ordinal()); } if (id != null) { sb.append(",id:"); } if (manualId) { sb.append(",manId:"); } if (distinct) { sb.append(",dist:"); } if (sqlDistinct) { sb.append(",sqlD:"); } if (disableLazyLoading) { sb.append(",disLazy:"); } if (rootTableAlias != null) { sb.append(",root:").append(rootTableAlias); } if (orderBy != null) { sb.append(",orderBy:").append(orderBy.toStringFormat()); } if (m2mIncludeJoin != null) { sb.append(",m2m:").append(m2mIncludeJoin.getTable()); } if (mapKey != null) { sb.append(",mapKey:").append(mapKey); } if (countDistinctOrder != null) { sb.append(",countDistOrd:").append(countDistinctOrder.name()); } if (detail != null) { sb.append(" detail["); detail.queryPlanHash(sb); sb.append("]"); } if (bindParams != null) { sb.append(" bindParams["); bindParams.buildQueryPlanHash(sb); sb.append("]"); } if (whereExpressions != null) { sb.append(" where["); whereExpressions.queryPlanHash(sb); sb.append("]"); } if (havingExpressions != null) { sb.append(" having["); havingExpressions.queryPlanHash(sb); sb.append("]"); } if (updateProperties != null) { sb.append(" update["); updateProperties.buildQueryPlanHash(sb); sb.append("]"); } return sb.toString(); } @Override public boolean isNativeSql() { return nativeSql != null; } @Override public String getNativeSql() { return nativeSql; } @Override public Object getQueryPlanKey() { return queryPlanKey; } /** * Prepare the query which prepares any expressions (sub-query expressions etc) and calculates the query plan key. */ @Override public CQueryPlanKey prepare(SpiOrmQueryRequest request) { prepareExpressions(request); prepareForPaging(); queryPlanKey = createQueryPlanKey(); return queryPlanKey; } /** * Prepare the expressions (compile sub-queries etc). */ private void prepareExpressions(BeanQueryRequest request) { if (whereExpressions != null) { whereExpressions.prepareExpression(request); } if (havingExpressions != null) { havingExpressions.prepareExpression(request); } } /** * deemed to be a be a paging query - check that the order by contains the id * property to ensure unique row ordering for predicable paging but only in * case, this is not a distinct query */ private void prepareForPaging() { // add the rawSql statement - if any if (orderByIsEmpty()) { if (rawSql != null && rawSql.getSql() != null) { order(rawSql.getSql().getOrderBy()); } } if (checkPagingOrderBy()) { beanDescriptor.appendOrderById(this); } } /** * Calculate a hash based on the bind values used in the query. *

* Used with queryPlanHash() to get a unique hash for a query. *

*/ @Override public int queryBindHash() { int hc = (id == null ? 0 : id.hashCode()); hc = hc * 92821 + (whereExpressions == null ? 0 : whereExpressions.queryBindHash()); hc = hc * 92821 + (havingExpressions == null ? 0 : havingExpressions.queryBindHash()); hc = hc * 92821 + (bindParams == null ? 0 : bindParams.queryBindHash()); hc = hc * 92821 + (asOf == null ? 0 : asOf.hashCode()); hc = hc * 92821 + (versionsStart == null ? 0 : versionsStart.hashCode()); hc = hc * 92821 + (versionsEnd == null ? 0 : versionsEnd.hashCode()); return hc; } /** * Return a hash that includes the query plan and bind values. *

* This hash can be used to identify if we have executed the exact same query (including bind * values) before. *

*/ @Override public HashQuery queryHash() { // calculateQueryPlanHash is called just after potential AutoTune tuning // so queryPlanHash is calculated well before this method is called int hc = queryBindHash(); return new HashQuery(queryPlanKey, hc); } @Override public boolean isRawSql() { return rawSql != null; } /** * Return the timeout. */ @Override public int getTimeout() { return timeout; } @Override public boolean hasMaxRowsOrFirstRow() { return maxRows > 0 || firstRow > 0; } @Override public boolean isVersionsBetween() { return versionsStart != null; } @Override public Timestamp getVersionStart() { return versionsStart; } @Override public Timestamp getVersionEnd() { return versionsEnd; } @Override public Boolean isReadOnly() { return readOnly; } @Override public DefaultOrmQuery setReadOnly(boolean readOnly) { this.readOnly = readOnly; return this; } @Override public boolean isBeanCachePut() { return useBeanCache.isPut() && beanDescriptor.isBeanCaching(); } @Override public boolean isBeanCacheGet() { return useBeanCache.isGet() && beanDescriptor.isBeanCaching() ; } @Override public boolean isForceHitDatabase() { return forUpdate != null || CacheMode.PUT == useBeanCache; } @Override public void resetBeanCacheAutoMode(boolean findOne) { if (useBeanCache == CacheMode.AUTO) { if (!findOne || useQueryCache != CacheMode.OFF) { useBeanCache = CacheMode.OFF; } } } @Override public CacheMode getUseBeanCache() { return useBeanCache; } @Override public CacheMode getUseQueryCache() { return useQueryCache; } @Override public Query setBeanCacheMode(CacheMode beanCacheMode) { this.useBeanCache = beanCacheMode; return this; } @Override public DefaultOrmQuery setUseQueryCache(CacheMode useQueryCache) { this.useQueryCache = useQueryCache; return this; } @Override public DefaultOrmQuery setLoadBeanCache(boolean loadBeanCache) { this.useBeanCache = CacheMode.PUT; return this; } @Override public DefaultOrmQuery setTimeout(int secs) { this.timeout = secs; return this; } @Override public DefaultOrmQuery select(String columns) { detail.select(columns); return this; } @Override public DefaultOrmQuery fetch(String property) { return fetch(property, null, null); } @Override public Query fetchQuery(String property) { return fetch(property, null, FETCH_QUERY); } @Override public Query fetchLazy(String property) { return fetch(property, null, FETCH_LAZY); } @Override public DefaultOrmQuery fetch(String property, FetchConfig joinConfig) { return fetch(property, null, joinConfig); } @Override public DefaultOrmQuery fetch(String property, String columns) { return fetch(property, columns, null); } @Override public Query fetchQuery(String property, String columns) { return fetch(property, columns, FETCH_QUERY); } @Override public Query fetchLazy(String property, String columns) { return fetch(property, columns, FETCH_LAZY); } @Override public DefaultOrmQuery fetch(String property, String columns, FetchConfig config) { detail.fetch(property, columns, config); return this; } @Override public int delete() { return server.delete(this, null); } @Override public int update() { return server.update(this, null); } @Override public List findIds() { // a copy of this query is made in the server // as the query needs to modified (so we modify // the copy rather than this query instance) return server.findIds(this, null); } @Override public int findCount() { // a copy of this query is made in the server // as the query needs to modified (so we modify // the copy rather than this query instance) return server.findCount(this, null); } @Override public void findEachWhile(Predicate consumer) { server.findEachWhile(this, consumer, null); } @Override public void findEach(Consumer consumer) { server.findEach(this, consumer, null); } @Override public QueryIterator findIterate() { return server.findIterate(this, null); } @Override public List> findVersions() { this.temporalMode = TemporalMode.VERSIONS; return server.findVersions(this, null); } @Override public List> findVersionsBetween(Timestamp start, Timestamp end) { if (start == null || end == null) { throw new IllegalArgumentException("start and end must not be null"); } this.temporalMode = TemporalMode.VERSIONS; this.versionsStart = start; this.versionsEnd = end; return server.findVersions(this, null); } @Override public List findList() { return server.findList(this, null); } @Override public Set findSet() { return server.findSet(this, null); } @Override public Map findMap() { return server.findMap(this, null); } @Override @SuppressWarnings("unchecked") public List findSingleAttributeList() { return (List) server.findSingleAttributeList(this, null); } @Override public A findSingleAttribute() { List list = findSingleAttributeList(); return !list.isEmpty() ? list.get(0) : null; } @Override public T findOne() { return server.findOne(this, null); } @Override public Optional findOneOrEmpty() { return server.findOneOrEmpty(this, null); } @Override public FutureIds findFutureIds() { return server.findFutureIds(this, null); } @Override public FutureList findFutureList() { return server.findFutureList(this, null); } @Override public FutureRowCount findFutureCount() { return server.findFutureCount(this, null); } @Override public PagedList findPagedList() { return server.findPagedList(this, null); } /** * Set an ordered bind parameter according to its position. Note that the position starts at 1 to * be consistent with JDBC PreparedStatement. You need to set a parameter value for each ? you * have in the query. */ @Override public DefaultOrmQuery setParameter(int position, Object value) { if (bindParams == null) { bindParams = new BindParams(); } bindParams.setParameter(position, value); return this; } /** * Set a named bind parameter. Named parameters have a colon to prefix the name. */ @Override public DefaultOrmQuery setParameter(String name, Object value) { if (namedParams != null) { ONamedParam param = namedParams.get(name); if (param != null) { param.setValue(value); return this; } } if (bindParams == null) { bindParams = new BindParams(); } bindParams.setParameter(name, value); return this; } @Override public boolean checkPagingOrderBy() { return !useDocStore && (maxRows > 1 || firstRow > 0) && !distinct && (orderByIsEmpty() || isOrderById()); } @Override public boolean orderByIsEmpty() { return orderBy == null || orderBy.isEmpty(); } @Override public OrderBy getOrderBy() { return orderBy; } @Override public OrderBy orderBy() { return order(); } @Override public OrderBy order() { if (orderBy == null) { orderBy = new OrderBy<>(this, null); } return orderBy; } @Override public DefaultOrmQuery orderBy(String orderByClause) { return order(orderByClause); } @Override public DefaultOrmQuery order(String orderByClause) { if (orderByClause == null || orderByClause.trim().isEmpty()) { this.orderBy = null; } else { this.orderBy = new OrderBy<>(this, orderByClause); } return this; } @Override public DefaultOrmQuery setOrderBy(OrderBy orderBy) { return setOrder(orderBy); } @Override public DefaultOrmQuery setOrder(OrderBy orderBy) { this.orderBy = orderBy; if (orderBy != null) { orderBy.setQuery(this); } return this; } @Override public boolean isManualId() { return manualId; } @Override public void setManualId(boolean manualId) { this.manualId = manualId; } /** * return true if user specified to use SQL DISTINCT (effectively excludes id property). */ @Override public boolean isDistinct() { return distinct; } /** * Internally set to use SQL DISTINCT on the query but still have id property included. */ @Override public DefaultOrmQuery setDistinct(boolean distinct) { this.distinct = distinct; return this; } @Override public DefaultOrmQuery setCountDistinct(CountDistinctOrder countDistinctOrder) { this.countDistinctOrder = countDistinctOrder; return this; } @Override public boolean isCountDistinct() { return countDistinctOrder != null; } /** * Return true if this query uses SQL DISTINCT either explicitly by the user or internally defined * by ebean. */ @Override public boolean isDistinctQuery() { return distinct || sqlDistinct; } @Override public boolean isSqlDistinct() { return sqlDistinct; } /** * Internally set to use SQL DISTINCT on the query but still have id property included. */ @Override public void setSqlDistinct(boolean sqlDistinct) { this.sqlDistinct = sqlDistinct; } @Override public Class getBeanType() { return beanType; } @Override public String toString() { return "Query [" + whereExpressions + "]"; } @Override public TableJoin getM2mIncludeJoin() { return m2mIncludeJoin; } @Override public void setM2MIncludeJoin(TableJoin m2mIncludeJoin) { this.m2mIncludeJoin = m2mIncludeJoin; } @Override public DefaultOrmQuery setDisableLazyLoading(boolean disableLazyLoading) { this.disableLazyLoading = disableLazyLoading; return this; } @Override public boolean isDisableLazyLoading() { return disableLazyLoading; } @Override public int getFirstRow() { return firstRow; } @Override public DefaultOrmQuery setFirstRow(int firstRow) { this.firstRow = firstRow; return this; } @Override public int getMaxRows() { return maxRows; } @Override public DefaultOrmQuery setMaxRows(int maxRows) { this.maxRows = maxRows; return this; } @Override public String getMapKey() { return mapKey; } @Override public DefaultOrmQuery setMapKey(String mapKey) { this.mapKey = mapKey; return this; } @Override public Object getId() { return id; } @Override public DefaultOrmQuery setId(Object id) { if (id == null) { throw new NullPointerException("The id is null"); } this.id = id; return this; } @Override public BindParams getBindParams() { return bindParams; } @Override public DefaultOrmQuery where(Expression expression) { where().add(expression); return this; } @Override public ExpressionList text() { if (textExpressions == null) { useDocStore = true; textExpressions = new DefaultExpressionList<>(this); } return textExpressions; } @Override public ExpressionList where() { if (whereExpressions == null) { whereExpressions = new DefaultExpressionList<>(this, null); } return whereExpressions; } @Override public void simplifyExpressions() { if (whereExpressions != null) { whereExpressions.simplify(); } } @Override public DefaultOrmQuery having(Expression expression) { having().add(expression); return this; } @Override public ExpressionList having() { if (havingExpressions == null) { havingExpressions = new DefaultExpressionList<>(this, null); } return havingExpressions; } @Override public SpiExpressionList getHavingExpressions() { return havingExpressions; } @Override public SpiExpressionList getWhereExpressions() { return whereExpressions; } @Override public SpiExpressionList getTextExpression() { return textExpressions; } @Override public String getGeneratedSql() { return generatedSql; } @Override public void setGeneratedSql(String generatedSql) { this.generatedSql = generatedSql; } @Override public void checkNamedParameters() { if (namedParams != null) { Collection values = namedParams.values(); for (ONamedParam value : values) { value.checkValueSet(); } } } @Override public SpiNamedParam createNamedParameter(String name) { if (namedParams == null) { namedParams = new HashMap<>(); } ONamedParam param = namedParams.computeIfAbsent(name, ONamedParam::new); return param; } @Override public void setDefaultFetchBuffer(int fetchSize) { if (bufferFetchSizeHint == 0) { bufferFetchSizeHint = fetchSize; } } @Override public Query setBufferFetchSizeHint(int bufferFetchSizeHint) { this.bufferFetchSizeHint = bufferFetchSizeHint; return this; } @Override public int getBufferFetchSizeHint() { return bufferFetchSizeHint; } @Override public Query setDisableReadAuditing() { this.disableReadAudit = true; return this; } @Override public boolean isDisableReadAudit() { return disableReadAudit; } @Override public boolean isFutureFetch() { return futureFetch; } @Override public void setFutureFetch(boolean backgroundFetch) { this.futureFetch = backgroundFetch; } @Override public void setFutureFetchAudit(ReadEvent event) { this.futureFetchAudit = event; } @Override public ReadEvent getFutureFetchAudit() { return futureFetchAudit; } @Override public void setCancelableQuery(CancelableQuery cancelableQuery) { synchronized (this) { this.cancelableQuery = cancelableQuery; } } @Override public DefaultOrmQuery alias(String alias) { this.rootTableAlias = alias; return this; } @Override public String getAlias() { return rootTableAlias; } @Override public void cancel() { synchronized (this) { cancelled = true; if (cancelableQuery != null) { cancelableQuery.cancel(); } } } @Override public boolean isCancelled() { synchronized (this) { return cancelled; } } @Override public Set validate() { return server.validateQuery(this); } /** * Validate all the expression properties/paths given the bean descriptor. */ @Override public Set validate(BeanType desc) { SpiExpressionValidation validation = new SpiExpressionValidation(desc); if (whereExpressions != null) { whereExpressions.validate(validation); } if (havingExpressions != null) { havingExpressions.validate(validation); } if (orderBy != null) { for (Property property : orderBy.getProperties()) { validation.validate(property.getProperty()); } } return validation.getUnknownProperties(); } void setUpdateProperties(OrmUpdateProperties updateProperties) { this.updateProperties = updateProperties; } @Override public OrmUpdateProperties getUpdateProperties() { return updateProperties; } @Override public ProfileLocation getProfileLocation() { return profileLocation; } @Override public Query orderById(boolean orderById) { this.orderById = orderById; return this; } public boolean isOrderById() { return orderById; } }




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