/*
* 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.giraph.examples;
import org.apache.giraph.graph.BasicComputation;
import org.apache.giraph.graph.Vertex;
import org.apache.hadoop.io.Writable;
import org.apache.hadoop.io.WritableComparable;
import java.io.IOException;
/**
* User applications can subclass IdentityComputation, which
* simply prints the results that have been read for testing IO related
* jobs under any inputformat
*
* @param <I> Vertex index value
* @param <V> Vertex value
* @param <E> Edge value
* @param <M> Message value
*/
@SuppressWarnings("rawtypes")
public class IdentityComputation<I extends WritableComparable,
V extends Writable, E extends Writable, M extends Writable>
extends BasicComputation<I, V, E, M> {
@Override
public void compute(Vertex<I, V, E> vertex,
Iterable<M> messages) throws IOException {
vertex.voteToHalt();
}
}