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     */
017    package org.apache.kahadb.util;
018    
019    import java.io.DataInput;
020    import java.io.DataOutput;
021    import java.io.IOException;
022    import org.apache.kahadb.journal.Location;
023    
024    public class LocationMarshaller implements Marshaller<Location> {
025        public final static LocationMarshaller INSTANCE = new LocationMarshaller();
026    
027        public Location readPayload(DataInput dataIn) throws IOException {
028            Location rc = new Location();
029            rc.setDataFileId(dataIn.readInt());
030            rc.setOffset(dataIn.readInt());
031            return rc;
032        }
033    
034        public void writePayload(Location object, DataOutput dataOut) throws IOException {
035            dataOut.writeInt(object.getDataFileId());
036            dataOut.writeInt(object.getOffset());
037        }
038    
039        public int getFixedSize() {
040            return 8;
041        }
042    
043        public Location deepCopy(Location source) {
044            return new Location(source);
045        }
046    
047        public boolean isDeepCopySupported() {
048            return true;
049        }
050    }