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Diffstat (limited to 'qpid/java/broker/src/main/java/org/apache/qpid/server/txn/XidImpl.java')
| -rw-r--r-- | qpid/java/broker/src/main/java/org/apache/qpid/server/txn/XidImpl.java | 210 |
1 files changed, 0 insertions, 210 deletions
diff --git a/qpid/java/broker/src/main/java/org/apache/qpid/server/txn/XidImpl.java b/qpid/java/broker/src/main/java/org/apache/qpid/server/txn/XidImpl.java deleted file mode 100644 index 91db1d97c0..0000000000 --- a/qpid/java/broker/src/main/java/org/apache/qpid/server/txn/XidImpl.java +++ /dev/null @@ -1,210 +0,0 @@ -/* Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - */ -package org.apache.qpid.server.txn; - - -import org.apache.log4j.Logger; - -import javax.transaction.xa.Xid; - -/** - * Created by Arnaud Simon - * Date: 03-Apr-2007 - * Time: 20:32:55 - */ -public class XidImpl implements Xid -{ - //======================================================================== - // Static Constants - //======================================================================== - // The logger for this class - private static final Logger _log = Logger.getLogger(XidImpl.class); - - //======================================================================== - // Instance Fields - //======================================================================== - - //the transaction branch identifier part of XID as an array of bytes - private byte[] m_branchQualifier; - - // the format identifier part of the XID. - private int m_formatID; - - // the global transaction identifier part of XID as an array of bytes. - private byte[] m_globalTransactionID; - - //======================================================================== - // Constructor(s) - //======================================================================== - - /** - * Create new Xid. - */ - public XidImpl() - { - - } - - /** - * Create new XidImpl from an existing Xid. - * <p/> - * This is usually called when an application server provides some implementation - * of the Xid interface and we need to cast this into our own XidImpl. - * - * @param xid the xid to cloning - */ - public XidImpl(Xid xid) - { - if (_log.isDebugEnabled()) - { - _log.debug("Cloning Xid"); - } - m_branchQualifier = xid.getBranchQualifier(); - m_formatID = xid.getFormatId(); - m_globalTransactionID = xid.getGlobalTransactionId(); - } - - /** - * Create a new Xid. - * - * @param branchQualifier The transaction branch identifier part of XID as an array of bytes. - * @param format The format identifier part of the XID. - * @param globalTransactionID The global transaction identifier part of XID as an array of bytes. - */ - public XidImpl(byte[] branchQualifier, int format, byte[] globalTransactionID) - { - if (_log.isDebugEnabled()) - { - _log.debug("creating Xid"); - } - m_branchQualifier = branchQualifier; - m_formatID = format; - m_globalTransactionID = globalTransactionID; - } - -//======================================================================== - - // Xid interface implementation - //======================================================================== - /** - * Format identifier. O means the OSI CCR format. - * - * @return Global transaction identifier. - */ - public byte[] getGlobalTransactionId() - { - return m_globalTransactionID; - } - - /** - * Obtain the transaction branch identifier part of XID as an array of bytes. - * - * @return Branch identifier part of XID. - */ - public byte[] getBranchQualifier() - { - return m_branchQualifier; - } - - /** - * Obtain the format identifier part of the XID. - * - * @return Format identifier. O means the OSI CCR format. - */ - public int getFormatId() - { - return m_formatID; - } - -//======================================================================== -// Object operations -//======================================================================== - - /** - * Indicates whether some other Xid is "equal to" this one. - * <p/> - * Two Xids are equal if and only if their three elementary parts are equal - * - * @param o the object to compare this <code>XidImpl</code> against. - * @return code>true</code> if the <code>XidImpl</code> are equal; <code>false</code> otherwise. - */ - public boolean equals(Object o) - { - if (this == o) - { - return true; - } - if (o instanceof XidImpl) - { - XidImpl other = (XidImpl) o; - if (m_formatID == other.getFormatId()) - { - if (m_branchQualifier.length == other.getBranchQualifier().length) - { - for (int i = 0; i < m_branchQualifier.length; i++) - { - if (m_branchQualifier[i] != other.getBranchQualifier()[i]) - { - return false; - } - } - - if (m_globalTransactionID.length == other.getGlobalTransactionId().length) - { - for (int i = 0; i < m_globalTransactionID.length; i++) - { - if (m_globalTransactionID[i] != other.getGlobalTransactionId()[i]) - { - return false; - } - } - // everithing is equal - return true; - } - } - } - } - return false; - } - - /** - * Returns a hash code for this Xid. - * <p/> - * As this object is used as a key entry in a hashMap it is necessary to provide an implementation - * of hashcode in order to fulfill the following aspect of the general contract of - * {@link Object#hashCode()} that is: - * <ul> - * <li>If two objects are equal according to the <tt>equals(Object)</tt> - * method, then calling the <code>hashCode</code> method on each of - * the two objects must produce the same integer result. - * </ul> - * <p/> - * The hash code for a - * <code>XidImpl</code> object is computed as - * <blockquote><pre> - * hashcode( globalTransactionID ) + hashcode( branchQualifier ) + formatID - * </pre></blockquote> - * - * @return a hash code value for this object. - */ - public int hashCode() - { - return (new String(m_globalTransactionID)).hashCode() + (new String(m_branchQualifier)).hashCode() + m_formatID; - } - -} |