samoa-api/src/main/java/org/apache/samoa/topology/EntranceProcessingItem.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.samoa.topology;

import org.apache.samoa.core.EntranceProcessor;

/**
 * Entrance processing item interface.
 */
public interface EntranceProcessingItem extends IProcessingItem {

  @Override
  /**
   * Gets the processing item processor.
   * 
   * @return the embedded EntranceProcessor. 
   */
  public EntranceProcessor getProcessor();

  /**
   * Set the single output stream for this EntranceProcessingItem.
   * 
   * @param stream
   *          the stream
   * @return the current instance of the EntranceProcessingItem for fluent interface.
   */
  public EntranceProcessingItem setOutputStream(Stream stream);
}