Java tutorial
/** * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved. * * This library is free software; you can redistribute it and/or modify it under * the terms of the GNU Lesser General Public License as published by the Free * Software Foundation; either version 2.1 of the License, or (at your option) * any later version. * * This library is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more * details. */ package com.liferay.sample.service.persistence; import com.liferay.portal.kernel.util.StringBundler; import com.liferay.portal.kernel.util.StringPool; import java.io.Serializable; /** * @author NeerajGautam */ public class AddressPK implements Comparable<AddressPK>, Serializable { public long addressId; public long employeeId; public AddressPK() { } public AddressPK(long addressId, long employeeId) { this.addressId = addressId; this.employeeId = employeeId; } public long getAddressId() { return addressId; } public void setAddressId(long addressId) { this.addressId = addressId; } public long getEmployeeId() { return employeeId; } public void setEmployeeId(long employeeId) { this.employeeId = employeeId; } public int compareTo(AddressPK pk) { if (pk == null) { return -1; } int value = 0; if (addressId < pk.addressId) { value = -1; } else if (addressId > pk.addressId) { value = 1; } else { value = 0; } if (value != 0) { return value; } if (employeeId < pk.employeeId) { value = -1; } else if (employeeId > pk.employeeId) { value = 1; } else { value = 0; } if (value != 0) { return value; } return 0; } @Override public boolean equals(Object obj) { if (this == obj) { return true; } if (!(obj instanceof AddressPK)) { return false; } AddressPK pk = (AddressPK) obj; if ((addressId == pk.addressId) && (employeeId == pk.employeeId)) { return true; } else { return false; } } @Override public int hashCode() { return (String.valueOf(addressId) + String.valueOf(employeeId)).hashCode(); } @Override public String toString() { StringBundler sb = new StringBundler(10); sb.append(StringPool.OPEN_CURLY_BRACE); sb.append("addressId"); sb.append(StringPool.EQUAL); sb.append(addressId); sb.append(StringPool.COMMA); sb.append(StringPool.SPACE); sb.append("employeeId"); sb.append(StringPool.EQUAL); sb.append(employeeId); sb.append(StringPool.CLOSE_CURLY_BRACE); return sb.toString(); } }