1 files changed, 67 insertions, 0 deletions
diff --git a/qpid/java/broker-core/src/main/java/org/apache/qpid/server/consumer/ConsumerTarget.java b/qpid/java/broker-core/src/main/java/org/apache/qpid/server/consumer/ConsumerTarget.java
new file mode 100644
index 0000000000..92579475ed
--- /dev/null
+++ b/qpid/java/broker-core/src/main/java/org/apache/qpid/server/consumer/ConsumerTarget.java
@@ -0,0 +1,67 @@
+/*
+ *
+ * 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.consumer;
+
+import org.apache.qpid.AMQException;
+import org.apache.qpid.server.message.MessageInstance;
+import org.apache.qpid.server.message.ServerMessage;
+import org.apache.qpid.server.protocol.AMQSessionModel;
+import org.apache.qpid.server.util.StateChangeListener;
+
+public interface ConsumerTarget
+{
+
+
+    enum State
+    {
+        ACTIVE, SUSPENDED, CLOSED
+    }
+
+    State getState();
+
+    void consumerAdded(Consumer sub);
+
+    void consumerRemoved(Consumer sub);
+
+    void setStateListener(StateChangeListener<ConsumerTarget, State> listener);
+
+    long getUnacknowledgedBytes();
+
+    long getUnacknowledgedMessages();
+
+    AMQSessionModel getSessionModel();
+
+    void send(MessageInstance entry, boolean batch) throws AMQException;
+
+    void flushBatched();
+
+    void queueDeleted();
+
+    void queueEmpty() throws AMQException;
+
+    boolean allocateCredit(ServerMessage msg);
+
+    void restoreCredit(ServerMessage queueEntry);
+
+    boolean isSuspended();
+
+    boolean close();
+}