Java tutorial
/* * Hibernate, Relational Persistence for Idiomatic Java * * License: GNU Lesser General Public License (LGPL), version 2.1 or later. * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>. */ package org.hibernate.sql; import org.hibernate.HibernateException; /** * @author Strong Liu */ public enum JoinType { NONE(-666), INNER_JOIN(0), LEFT_OUTER_JOIN(1), RIGHT_OUTER_JOIN(2), FULL_JOIN(4); private int joinTypeValue; JoinType(int joinTypeValue) { this.joinTypeValue = joinTypeValue; } public int getJoinTypeValue() { return joinTypeValue; } public static JoinType parse(int joinType) { if (joinType < 0) { return NONE; } switch (joinType) { case 0: return INNER_JOIN; case 1: return LEFT_OUTER_JOIN; case 2: return RIGHT_OUTER_JOIN; case 4: return FULL_JOIN; default: throw new HibernateException("unknown join type: " + joinType); } } }