/* * 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.jdbc.maps.m2mmapex2; import javax.persistence.*; import java.util.*; @Entity @Table(name="MEx2Emp") public class Employee { @Id int empId; @ManyToMany Map<Department, PhoneNumber> phones = new HashMap<Department, PhoneNumber>(); // Bidirectional public Map<Department, PhoneNumber> getPhoneNumbers() { return phones; } public void addPhoneNumber(Department d, PhoneNumber phoneNumber) { phones.put(d, phoneNumber); } public void removePhoneNumber(Department d) { phones.remove(d); } public int getEmpId() { return empId; } public void setEmpId(int empId) { this.empId = empId; } public boolean equals(Object o) { Employee e = (Employee) o; Map<Department, PhoneNumber> map = e.getPhoneNumbers(); if (map.size() != phones.size()) return false; Collection<Map.Entry<Department, PhoneNumber>> entries = (Collection<Map.Entry<Department, PhoneNumber>>) phones.entrySet(); for (Map.Entry<Department, PhoneNumber> entry : entries) { Department key = entry.getKey(); PhoneNumber p = entry.getValue(); PhoneNumber p0 = map.get(key); if (p.getNumber() != p0.getNumber()) return false; } return true; } }