| /* |
| * 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 |
| <<<<<<< Updated upstream |
| * |
| * https://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 |
| ======= |
| * |
| * https://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 |
| >>>>>>> Stashed changes |
| * limitations under the License. |
| */ |
| |
| /* |
| * StringIdentity.java |
| * |
| */ |
| |
| package javax.jdo.identity; |
| |
| import java.io.IOException; |
| import java.io.ObjectInput; |
| import java.io.ObjectOutput; |
| |
| /** |
| * This class is for identity with a single String field. |
| * |
| * @version 2.0 |
| */ |
| public class StringIdentity extends SingleFieldIdentity<StringIdentity> { |
| |
| private static final long serialVersionUID = 1L; |
| |
| /** The key is stored in the superclass field keyAsObject. */ |
| |
| /** |
| * Constructor with class and key. |
| * |
| * @param pcClass the class |
| * @param key the key |
| */ |
| public StringIdentity(Class<?> pcClass, String key) { |
| super(pcClass); |
| setKeyAsObject(key); |
| hashCode = hashClassName() ^ key.hashCode(); |
| } |
| |
| /** Constructor only for Externalizable. */ |
| public StringIdentity() {} |
| |
| /** |
| * Return the key. |
| * |
| * @return the key |
| */ |
| public String getKey() { |
| return (String) keyAsObject; |
| } |
| |
| /** |
| * Return the String form of the key. |
| * |
| * @return the String form of the key |
| */ |
| public String toString() { |
| return (String) keyAsObject; |
| } |
| |
| /** |
| * Determine if the other object represents the same object id. |
| * |
| * @param obj the other object |
| * @return true if both objects represent the same object id |
| */ |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } else if (!super.equals(obj)) { |
| return false; |
| } else { |
| StringIdentity other = (StringIdentity) obj; |
| return keyAsObject.equals(other.keyAsObject); |
| } |
| } |
| |
| /** |
| * Determine the ordering of identity objects. |
| * |
| * @param o Other identity |
| * @return The relative ordering between the objects |
| * @since 2.2 |
| */ |
| public int compareTo(StringIdentity o) { |
| if (o == null) { |
| throw new ClassCastException("object is null"); |
| } |
| int result = super.compare(o); |
| return (result == 0) ? ((String) keyAsObject).compareTo((String) o.keyAsObject) : result; |
| } |
| |
| /** |
| * Write this object. Write the superclass first. |
| * |
| * @param out the output |
| */ |
| public void writeExternal(ObjectOutput out) throws IOException { |
| super.writeExternal(out); |
| out.writeObject(keyAsObject); |
| } |
| |
| /** |
| * Read this object. Read the superclass first. |
| * |
| * @param in the input |
| */ |
| public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException { |
| super.readExternal(in); |
| keyAsObject = in.readObject(); |
| } |
| } |