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.utils;
2021import org.apache.hadoop.io.WritableComparable;
2223import java.io.DataInput;
24import java.io.DataOutput;
25import java.io.IOException;
2627/**28 * Stores pairs of vertex id and generic data in a single byte array29 *30 * @param <I> Vertex id31 * @param <T> Data32 */33publicabstractclass ByteArrayVertexIdData<I extends WritableComparable,
34 T> extends AbstractVertexIdData<I, T> {
3536/**37 * Get the underlying byte-array.38 *39 * @return The underlying byte-array40 */41public byte[] getByteArray() {
42return extendedDataOutput.getByteArray();
43 }
4445 @Override
46publicvoid write(DataOutput dataOutput) throws IOException {
47 WritableUtils.writeExtendedDataOutput(extendedDataOutput, dataOutput);
48 }
4950 @Override
51publicvoid readFields(DataInput dataInput) throws IOException {
52 extendedDataOutput =
53 WritableUtils.readExtendedDataOutput(dataInput, getConf());
54 }
55 }