Package eu.stratosphere.nephele.managementgraph

Source Code of eu.stratosphere.nephele.managementgraph.ManagementEdgeID

/***********************************************************************************************************************
* Copyright (C) 2010-2013 by the Stratosphere project (http://stratosphere.eu)
*
* 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 eu.stratosphere.nephele.managementgraph;

import eu.stratosphere.nephele.AbstractID;
import eu.stratosphere.runtime.io.channels.ChannelID;

/**
* A management edge ID uniquely identifies a {@link ManagementEdge}.
* <p>
* This class is not thread-safe.
*
*/
public class ManagementEdgeID extends AbstractID {

  /**
   * Initializes ManagementEdgeID.
   */
  ManagementEdgeID() {
  }

  /**
   * A ManagementEdgeID is derived from the #{@link ChannelID} of the corresponding
   * output channel in the execution graph.
   *
   * @param source
   *        ID of the corresponding output channel
   */
  public ManagementEdgeID(ChannelID source) {
    super();
    this.setID(source);
  }

  /**
   * Converts the management edge ID into a {@link ChannelID}.
   *
   * @return the corresponding channelID.
   */
  public ChannelID toChannelID() {

    final ChannelID channelID = new ChannelID();
    channelID.setID(this);

    return channelID;
  }
}
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