library/src/main/java/com/datatorrent/lib/testbench/CountAndLastTupleTestSink.java

/*
 * Copyright (c) 2013 DataTorrent, 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.
 */
package com.datatorrent.lib.testbench;

/**
 * A sink implementation to collect expected test results. 
 * <p>
 * @displayName Count And Last Tuple Test Sink
 * @category Testbench
 * @tags count, sink
 * @since 0.3.2
 */
public class CountAndLastTupleTestSink<T> extends CountTestSink<T>
{
  public  Object tuple = null;
  /**
   * clears data
   */

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

  @Override
  public void put(T tuple)
  {
      this.tuple = tuple;
      count++;
  }
}