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diff --git a/qpid/java/common/src/main/java/org/apache/qpid/util/concurrent/SynchRecord.java b/qpid/java/common/src/main/java/org/apache/qpid/util/concurrent/SynchRecord.java
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+package org.apache.qpid.util.concurrent;
+/*
+ *
+ * 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.
+ *
+ */
+
+
+/**
+ * SynchRecord associates a data item from a {@link BatchSynchQueue} with its producer. This enables the data item data
+ * item to be put back on the queue without unblocking its producer, or to send exceptions to the producer.
+ *
+ * <p/><table id="crc"><caption>CRC Card</caption>
+ * <tr><th> Responsibilities <th> Collaborations
+ * <tr><td> Get the underlying data element.
+ * <tr><td> Put the data element back on the queue without unblocking its producer.
+ * <tr><td> Send and exception to the data elements producer.
+ * </table>
+ */
+public interface SynchRecord<E>
+{
+ /**
+ * Gets the data element contained by this record.
+ *
+ * @return The data element contained by this record.
+ */
+ public E getElement();
+
+ /**
+ * Tells the synch queue to put this element back onto the queue instead of releasing its producer.
+ * The element is not requeued immediately but upon calling the {@link SynchRef#unblockProducers()} method.
+ *
+ * <p/>This method will raise a runtime exception {@link AlreadyUnblockedException} if the producer for this element
+ * has already been unblocked.
+ */
+ public void reQueue();
+
+ /**
+ * Immediately releases the producer of this data record. Consumers can bring the synchronization time of
+ * producers to a minimum by using this method to release them at the earliest possible moment when batch
+ * consuming records from sychronized producers.
+ */
+ public void releaseImmediately();
+
+ /**
+ * Tells the synch queue to raise an exception with this elements producer. The exception is not raised immediately
+ * but upon calling the {@link SynchRef#unblockProducers()} method. The exception will be wrapped in a
+ * {@link SynchException} before it is raised on the producer.
+ *
+ * <p/>This method is unusual in that it accepts an exception as an argument. This is non-standard but is used
+ * because the exception is to be passed onto a different thread.
+ *
+ * <p/>This method will raise a runtime exception {@link AlreadyUnblockedException} if the producer for this element
+ * has already been unblocked.
+ *
+ * @param e The exception to raise on the producer.
+ */
+ public void inError(Exception e);
+}