1 files changed, 0 insertions, 54 deletions
diff --git a/broker/src/org/apache/qpid/server/txn/TxnOp.java b/broker/src/org/apache/qpid/server/txn/TxnOp.java
deleted file mode 100644
index e863bab73e..0000000000
--- a/broker/src/org/apache/qpid/server/txn/TxnOp.java
+++ /dev/null
@@ -1,54 +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.qpid.AMQException;
-
-/**
- * This provides the abstraction of an individual operation within a
- * transaction. It is used by the TxnBuffer class.
- */
-public interface TxnOp
-{
-    /**
-     * Do the part of the operation that updates persistent state 
-     */
-    public void prepare() throws AMQException;
-    /**
-     * Complete the operation started by prepare. Can now update in
-     * memory state or make netork transfers.
-     */
-    public void commit();
-    /**
-     * This is not the same as rollback. Unfortunately the use of an
-     * in memory reference count as a locking mechanism and a test for
-     * whether a message should be deleted means that as things are,
-     * handling an acknowledgement unavoidably alters both memory and
-     * persistent state on prepare. This is needed to 'compensate' or
-     * undo the in-memory change if the peristent update of later ops
-     * fails.
-     */
-    public void undoPrepare();
-    /**
-     * Rolls back the operation.
-     */
-    public void rollback();
-}