Java tutorial
/** * Copyright (c) 2000-2010 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.lostsys.lists.service.persistence; import com.liferay.portal.kernel.util.StringBundler; import com.liferay.portal.kernel.util.StringPool; import java.io.Serializable; /** * @author Brian Wing Shun Chan */ public class TaskListPK implements Comparable<TaskListPK>, Serializable { public String portlet; public long id; public TaskListPK() { } public TaskListPK(String portlet, long id) { this.portlet = portlet; this.id = id; } public String getPortlet() { return portlet; } public void setPortlet(String portlet) { this.portlet = portlet; } public long getId() { return id; } public void setId(long id) { this.id = id; } public int compareTo(TaskListPK pk) { if (pk == null) { return -1; } int value = 0; value = portlet.compareTo(pk.portlet); if (value != 0) { return value; } if (id < pk.id) { value = -1; } else if (id > pk.id) { value = 1; } else { value = 0; } if (value != 0) { return value; } return 0; } public boolean equals(Object obj) { if (obj == null) { return false; } TaskListPK pk = null; try { pk = (TaskListPK) obj; } catch (ClassCastException cce) { return false; } if ((portlet.equals(pk.portlet)) && (id == pk.id)) { return true; } else { return false; } } public int hashCode() { return (String.valueOf(portlet) + String.valueOf(id)).hashCode(); } public String toString() { StringBundler sb = new StringBundler(10); sb.append(StringPool.OPEN_CURLY_BRACE); sb.append("portlet"); sb.append(StringPool.EQUAL); sb.append(portlet); sb.append(StringPool.COMMA); sb.append(StringPool.SPACE); sb.append("id"); sb.append(StringPool.EQUAL); sb.append(id); sb.append(StringPool.CLOSE_CURLY_BRACE); return sb.toString(); } }