/* Copyright 2005 MySQL AB, 2008 Sun Microsystems This program is free software; you can redistribute it and/or modify it under the terms of version 2 of the GNU General Public License as published by the Free Software Foundation. There are special exceptions to the terms and conditions of the GPL as it is applied to this software. View the full text of the exception in file EXCEPTIONS-CONNECTOR-J in the directory of this software distribution. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ package com.mysql.jdbc.jdbc2.optional; import javax.transaction.xa.Xid; /** * Implementation of the XID interface for MySQL XA * * @version $Id: $ */ public class MysqlXid implements Xid { int hash = 0; byte[] myBqual; int myFormatId; byte[] myGtrid; public MysqlXid(byte[] gtrid, byte[] bqual, int formatId) { this.myGtrid = gtrid; this.myBqual = bqual; this.myFormatId = formatId; } public boolean equals(Object another) { if (another instanceof Xid) { Xid anotherAsXid = (Xid) another; if (this.myFormatId != anotherAsXid.getFormatId()) { return false; } byte[] otherBqual = anotherAsXid.getBranchQualifier(); byte[] otherGtrid = anotherAsXid.getGlobalTransactionId(); if (otherGtrid != null && otherGtrid.length == this.myGtrid.length) { int length = otherGtrid.length; for (int i = 0; i < length; i++) { if (otherGtrid[i] != this.myGtrid[i]) { return false; } } if (otherBqual != null && otherBqual.length == myBqual.length) { length = otherBqual.length; for (int i = 0; i < length; i++) { if (otherBqual[i] != this.myBqual[i]) { return false; } } } else { return false; } return true; } else { return false; } } else { return false; } } public byte[] getBranchQualifier() { return this.myBqual; } public int getFormatId() { return this.myFormatId; }; public byte[] getGlobalTransactionId() { return this.myGtrid; } public synchronized int hashCode() { if (this.hash == 0) { for (int i = 0; i < this.myGtrid.length; i++) { this.hash = 33 * this.hash + this.myGtrid[i]; } } return this.hash; } }