001/**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.activemq.store.kahadb.disk.util;
018
019import java.io.DataInput;
020import java.io.DataOutput;
021import java.io.IOException;
022import org.apache.activemq.store.kahadb.disk.journal.Location;
023
024public class LocationMarshaller implements Marshaller<Location> {
025
026    public final static LocationMarshaller INSTANCE = new LocationMarshaller();
027
028    public LocationMarshaller () {
029
030    }
031
032    public Location readPayload(DataInput dataIn) throws IOException {
033        Location rc = new Location();
034        rc.setDataFileId(dataIn.readInt());
035        rc.setOffset(dataIn.readInt());
036        return rc;
037    }
038
039    public void writePayload(Location object, DataOutput dataOut) throws IOException {
040        dataOut.writeInt(object.getDataFileId());
041        dataOut.writeInt(object.getOffset());
042    }
043
044    public int getFixedSize() {
045        return 8;
046    }
047
048    public Location deepCopy(Location source) {
049        return new Location(source);
050    }
051
052    public boolean isDeepCopySupported() {
053        return true;
054    }
055}