blob: 69579b0cd8ac9bfa0015133ca6b9aa123f77183b [file] [log] [blame]
/*
* 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.comm;
import org.apache.giraph.graph.BspUtils;
import org.apache.hadoop.io.Writable;
/**
* Wrapper around {@link ArrayListWritable} that allows the message class to
* be set prior to calling readFields().
*
* @param <M> message type
*/
public class MsgList<M extends Writable>
extends ArrayListWritable<M> {
/** Defining a layout version for a serializable class. */
private static final long serialVersionUID = 100L;
public MsgList() {
super();
}
public MsgList(MsgList<M> msgList) {
super(msgList);
}
@SuppressWarnings("unchecked")
@Override
public void setClass() {
setClass((Class<M>) BspUtils.getMessageValueClass(getConf()));
}
}