/**
* 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.activemq;
import java.util.
List;
import javax.jms.
JMSException;
import org.apache.activemq.command.
MessageDispatch;
public interface
MessageDispatchChannel {
public abstract void
enqueue(
MessageDispatch message);
public abstract void
enqueueFirst(
MessageDispatch message);
public abstract boolean
isEmpty();
/**
* Used to get an enqueued message. The amount of time this method blocks is
* based on the timeout value. - if timeout==-1 then it blocks until a
* message is received. - if timeout==0 then it it tries to not block at
* all, it returns a message if it is available - if timeout>0 then it
* blocks up to timeout amount of time. Expired messages will consumed by
* this method.
*
* @throws JMSException
* @return null if we timeout or if the consumer is closed.
* @throws InterruptedException
*/
public abstract
MessageDispatch dequeue(long
timeout) throws
InterruptedException;
public abstract
MessageDispatch dequeueNoWait();
public abstract
MessageDispatch peek();
public abstract void
start();
public abstract void
stop();
public abstract void
close();
public abstract void
clear();
public abstract boolean
isClosed();
public abstract int
size();
public abstract
Object getMutex();
public abstract boolean
isRunning();
public abstract
List<
MessageDispatch>
removeAll();
}