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.activemq.kaha;
018    
019    import java.io.Externalizable;
020    import java.io.IOException;
021    import java.io.ObjectInput;
022    import java.io.ObjectOutput;
023    
024    import org.apache.activemq.util.IOHelper;
025    
026    /**
027     * Used by RootContainers
028     * 
029     * 
030     */
031    public class ContainerId implements Externalizable {
032        private static final long serialVersionUID = -8883779541021821943L;
033        private Object key;
034        private String dataContainerName;
035    
036        public ContainerId() {
037        }
038    
039        public ContainerId(Object key, String dataContainerName) {
040            this.key = key;
041            this.dataContainerName = dataContainerName;
042        }
043    
044        /**
045         * @return Returns the dataContainerPrefix.
046         */
047        public String getDataContainerName() {
048            return dataContainerName;
049        }
050    
051        /**
052         * @return Returns the key.
053         */
054        public Object getKey() {
055            return key;
056        }
057    
058        public int hashCode() {
059            return key.hashCode() ^ dataContainerName.hashCode();
060        }
061    
062        public boolean equals(Object obj) {
063            if (obj == null || obj.getClass() != ContainerId.class) {
064                return false;
065            }
066            ContainerId other = (ContainerId)obj;
067            return other.key.equals(this.key) && other.dataContainerName.equals(this.dataContainerName);
068        }
069    
070        public void writeExternal(ObjectOutput out) throws IOException {
071            out.writeUTF(getDataContainerName());
072            out.writeObject(key);
073        }
074    
075        public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
076            dataContainerName = in.readUTF();
077            key = in.readObject();
078        }
079    
080        public String toString() {
081            return "CID{" + dataContainerName + ":" + key + "}";
082        }
083    }