CollectProducer.java

package edu.washington.escience.myria.operator.network;

import edu.washington.escience.myria.operator.Operator;
import edu.washington.escience.myria.operator.network.distribute.BroadcastDistributeFunction;
import edu.washington.escience.myria.parallel.ExchangePairID;

/**
 * The producer part of the Collect Exchange operator. The producer actively pushes the tuples generated by the child
 * operator to the paired CollectConsumer.
 */
public class CollectProducer extends GenericShuffleProducer {

  /** Required for Java serialization. */
  private static final long serialVersionUID = 1L;

  /**
   * @param child the child who provides data for this producer to distribute.
   * @param operatorID destination operator the data goes
   * @param consumerWorkerID destination worker the data goes.
   */
  public CollectProducer(
      final Operator child, final ExchangePairID operatorID, final int consumerWorkerID) {
    super(
        child,
        new ExchangePairID[] {operatorID},
        new int[] {consumerWorkerID},
        new BroadcastDistributeFunction());
    this.distributeFunction.setDestinations(1, 1);
  }
}