com.nesscomputing.jms.ConsumerCallback Maven / Gradle / Ivy
/**
* Copyright (C) 2012 Ness Computing, Inc.
*
* Licensed 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 com.nesscomputing.jms;
import java.io.IOException;
import javax.annotation.Nullable;
import javax.jms.JMSException;
public interface ConsumerCallback
{
/**
* Callback for every received message. If the topic is connected, it will be
* called in regular intervals even if no message was received (message is null).
*
* @param message A received message or null if the topic is connected and no message was received for some time.
* @return false if the caller should disconnect from the topic, otherwise true.
*/
boolean withMessage(@Nullable final T data) throws JMSException, IOException;
}