1/*2 * Licensed to the Apache Software Foundation (ASF) under one3 * or more contributor license agreements. See the NOTICE file4 * distributed with this work for additional information5 * regarding copyright ownership. The ASF licenses this file6 * to you under the Apache License, Version 2.0 (the7 * "License"); you may not use this file except in compliance8 * with the License. You may obtain a copy of the License at9 *10 * http://www.apache.org/licenses/LICENSE-2.011 *12 * Unless required by applicable law or agreed to in writing, software13 * distributed under the License is distributed on an "AS IS" BASIS,14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.15 * See the License for the specific language governing permissions and16 * limitations under the License.17 */1819package org.apache.giraph.io;
2021import org.apache.giraph.graph.Vertex;
22import org.apache.hadoop.io.Writable;
23import org.apache.hadoop.io.WritableComparable;
24import org.apache.hadoop.mapreduce.InputSplit;
25import org.apache.hadoop.mapreduce.TaskAttemptContext;
2627import java.io.IOException;
2829/**30 * Vertex reader for {@link org.apache.giraph.io.VertexValueInputFormat}.31 *32 * @param <I> Vertex id33 * @param <V> Vertex value34 */35publicabstractclass VertexValueReader<I extends WritableComparable,
36 V extends Writable> extends BasicVertexValueReader<I, V> {
37 @Override
38publicvoid initialize(InputSplit inputSplit, TaskAttemptContext context)
39throws IOException, InterruptedException {
40 }
4142 @Override
43publicfinal Vertex<I, V, Writable> getCurrentVertex() throws IOException,
44 InterruptedException {
45 Vertex<I, V, Writable> vertex = getConf().createVertex();
46 vertex.initialize(getCurrentVertexId(), getCurrentVertexValue());
47return vertex;
48 }
49 }