/* * 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.persistence.criteria; /** * A class is used as an identifier to {@link EntityWithIdClass another persistent entity}. * <br> * The type and name of the declared fields of this class and the identifier fields declared * in the persistent entity must be compatiable. * <br> * This class also must implement its <tt>equals()</tt> and <tt>hashCode()</tt> methods * properly i.e. involving the declared fields. Otherwise a JPA runtime will not work * properly. * * @author Pinaki Poddar * */ public class IdTestClass { String name; long ssn; @Override public int hashCode() { final int prime = 31; int result = 1; result = prime * result + ((name == null) ? 0 : name.hashCode()); result = prime * result + (int) (ssn ^ (ssn >>> 32)); return result; } @Override public boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (getClass() != obj.getClass()) return false; IdTestClass other = (IdTestClass) obj; if (name == null) { if (other.name != null) return false; } else if (!name.equals(other.name)) return false; if (ssn != other.ssn) return false; return true; } }