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Java client for Arcus memcached

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package net.spy.memcached.protocol.ascii;

import java.util.HashSet;

import net.spy.memcached.ops.GetOperation;
import net.spy.memcached.protocol.ProxyCallback;

/**
 * Optimized Get operation for folding a bunch of gets together.
 */
final class OptimizedGetImpl extends GetOperationImpl {

  private final ProxyCallback pcb;

  /**
   * Construct an optimized get starting with the given get operation.
   */
  public OptimizedGetImpl(GetOperation firstGet) {
    super(new HashSet(), new ProxyCallback());
    pcb = (ProxyCallback) getCallback();
    addOperation(firstGet);
  }

  /**
   * Add a new GetOperation to get.
   */
  public void addOperation(GetOperation o) {
    getKeys().addAll(o.getKeys());
    pcb.addCallbacks(o);
  }
}