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.nyu.service.persistence; import com.liferay.portal.kernel.util.StringBundler; import com.liferay.portal.kernel.util.StringPool; import java.io.Serializable; /** * @author Allwins Rajaiah */ public class Lesson_UsergroupsPK implements Comparable<Lesson_UsergroupsPK>, Serializable { public long lessonId; public long groupId; public Lesson_UsergroupsPK() { } public Lesson_UsergroupsPK(long lessonId, long groupId) { this.lessonId = lessonId; this.groupId = groupId; } public long getLessonId() { return lessonId; } public void setLessonId(long lessonId) { this.lessonId = lessonId; } public long getGroupId() { return groupId; } public void setGroupId(long groupId) { this.groupId = groupId; } @Override public int compareTo(Lesson_UsergroupsPK pk) { if (pk == null) { return -1; } int value = 0; if (lessonId < pk.lessonId) { value = -1; } else if (lessonId > pk.lessonId) { value = 1; } else { value = 0; } if (value != 0) { return value; } if (groupId < pk.groupId) { value = -1; } else if (groupId > pk.groupId) { 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 Lesson_UsergroupsPK)) { return false; } Lesson_UsergroupsPK pk = (Lesson_UsergroupsPK) obj; if ((lessonId == pk.lessonId) && (groupId == pk.groupId)) { return true; } else { return false; } } @Override public int hashCode() { return (String.valueOf(lessonId) + String.valueOf(groupId)).hashCode(); } @Override public String toString() { StringBundler sb = new StringBundler(10); sb.append(StringPool.OPEN_CURLY_BRACE); sb.append("lessonId"); sb.append(StringPool.EQUAL); sb.append(lessonId); sb.append(StringPool.COMMA); sb.append(StringPool.SPACE); sb.append("groupId"); sb.append(StringPool.EQUAL); sb.append(groupId); sb.append(StringPool.CLOSE_CURLY_BRACE); return sb.toString(); } }