package org.apache.samoa.topology.impl;

/*
 * #%L
 * SAMOA
 * %%
 * Copyright (C) 2014 - 2015 Apache Software Foundation
 * %%
 * 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.
 * #L%
 */

import org.apache.samoa.topology.IProcessingItem;

/**
 * Common interface of SamzaEntranceProcessingItem and SamzaProcessingItem
 * 
 * @author Anh Thu Vu
 */
public interface SamzaProcessingNode extends IProcessingItem {
  /**
   * Registers an output stream with this processing item
   * 
   * @param stream
   *          the output stream
   * @return the number of output streams of this processing item
   */
  public int addOutputStream(SamzaStream stream);

  /**
   * Gets the name/id of this processing item
   * 
   * @return the name/id of this processing item
   */
  // TODO: include getName() and setName() in IProcessingItem and/or
  // AbstractEPI/PI
  public String getName();

  /**
   * Sets the name/id for this processing item
   * 
   * @param name
   *          the name/id of this processing item
   */
  // TODO: include getName() and setName() in IProcessingItem and/or
  // AbstractEPI/PI
  public void setName(String name);
}