| /* |
| * 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.openjpa.lib.identifier; |
| |
| import java.io.Serializable; |
| |
| /** |
| * Base identifer implementation. |
| */ |
| public class IdentifierImpl implements Identifier, Serializable { |
| |
| |
| private static final long serialVersionUID = 1L; |
| private String _name = null; |
| |
| protected IdentifierImpl() {} |
| |
| public IdentifierImpl(String name) { |
| setName(name); |
| } |
| |
| @Override |
| public void setName(String name) { |
| _name = name; |
| } |
| |
| @Override |
| public String getName() { |
| return _name; |
| } |
| |
| @Override |
| public String toString() { |
| return getName(); |
| } |
| |
| @Override |
| public int hashCode() { |
| if (_name == null) { |
| return super.hashCode(); |
| } |
| return _name.toUpperCase().hashCode(); |
| } |
| |
| @Override |
| public int length() { |
| if (getName() == null) { |
| return 0; |
| } |
| return getName().length(); |
| } |
| |
| @Override |
| public int compareTo(Identifier o) { |
| if (_name == null && (o == null || o.getName() == null)) { |
| return 0; |
| } |
| if (_name == null) |
| return 1; |
| if (o == null || o.getName() == null) |
| return -1; |
| return _name.compareTo(o.getName()); |
| } |
| } |