com.pivotal.gemfirexd.internal.snappy.SparkSQLExecute Maven / Gradle / Ivy

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SnappyData store based off Pivotal GemFireXD

There is a newer version: 2.0-BETA

/*
 * Copyright (c) 2016 SnappyData, Inc. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you
 * may not use this file except in compliance with the License. You
 * may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * permissions and limitations under the License. See accompanying
 * LICENSE file.
 */

package com.pivotal.gemfirexd.internal.snappy;

import java.io.DataOutput;

import com.pivotal.gemfirexd.internal.engine.distributed.SnappyResultHolder;
import com.pivotal.gemfirexd.internal.engine.distributed.message.LeadNodeExecutorMsg;

public interface SparkSQLExecute {

  /**
   * This is invoked by the LeadNode execute to pack the results in the HeapDataOutputStream
   */
  void packRows(LeadNodeExecutorMsg msg, SnappyResultHolder snappyResultHolder);

  /**
   * Called at the lowest level to serialize the SnappyResultHolder object per batch.
   * @param out
   */
  void serializeRows(DataOutput out);
}