| /* |
| * |
| * 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.server.message.MessageInstance; |
| import org.apache.qpid.server.message.MessageInstanceConsumer; |
| import org.apache.qpid.server.message.ServerMessage; |
| import org.apache.qpid.server.protocol.AMQSessionModel; |
| import org.apache.qpid.server.util.StateChangeListener; |
| |
| public interface ConsumerTarget |
| { |
| |
| |
| void acquisitionRemoved(MessageInstance node); |
| |
| void removeStateChangeListener(StateChangeListener<ConsumerTarget, State> listener); |
| |
| boolean processPending(); |
| |
| boolean hasPendingWork(); |
| |
| String getTargetAddress(); |
| |
| boolean hasCredit(); |
| |
| enum State |
| { |
| ACTIVE, SUSPENDED, CLOSED |
| } |
| |
| State getState(); |
| |
| void consumerAdded(MessageInstanceConsumer consumer); |
| |
| void consumerRemoved(MessageInstanceConsumer consumer); |
| |
| void notifyCurrentState(); |
| |
| void addStateListener(StateChangeListener<ConsumerTarget, State> listener); |
| |
| long getUnacknowledgedBytes(); |
| |
| long getUnacknowledgedMessages(); |
| |
| AMQSessionModel getSessionModel(); |
| |
| long send(final MessageInstanceConsumer consumer, MessageInstance entry, boolean batch); |
| |
| boolean hasMessagesToSend(); |
| |
| void sendNextMessage(); |
| |
| void flushBatched(); |
| |
| void queueDeleted(); |
| |
| void queueEmpty(); |
| |
| boolean allocateCredit(ServerMessage msg); |
| |
| void restoreCredit(ServerMessage queueEntry); |
| |
| boolean isSuspended(); |
| |
| boolean close(); |
| |
| boolean trySendLock(); |
| |
| void getSendLock(); |
| |
| void releaseSendLock(); |
| |
| } |