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mqttv5_java/mqtt/org/eclipse/paho/mqttv5/client/MqttDeliveryToken.java
candi 212c19d40a 1
2025-09-04 04:43:31 +08:00

57 lines
1.8 KiB
Java

/*******************************************************************************
* Copyright (c) 2009, 2014 IBM Corp.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v2.0
* and Eclipse Distribution License v1.0 which accompany this distribution.
*
* The Eclipse Public License is available at
* https://www.eclipse.org/legal/epl-2.0
* and the Eclipse Distribution License is available at
* https://www.eclipse.org/org/documents/edl-v10.php
*
* Contributors:
* Dave Locke - initial API and implementation and/or initial documentation
*/
package org.eclipse.paho.mqttv5.client;
import org.eclipse.paho.mqttv5.common.MqttException;
import org.eclipse.paho.mqttv5.common.MqttMessage;
/**
* Provides a mechanism to track the delivery progress of a message.
*
* <p>
* Used to track the the delivery progress of a message when a publish is
* executed in a non-blocking manner (run in the background)</p>
*
* @see MqttToken
*/
public class MqttDeliveryToken extends MqttToken implements IMqttDeliveryToken {
public MqttDeliveryToken() {
super();
}
public MqttDeliveryToken(String logContext) {
super(logContext);
}
/**
* Returns the message associated with this token.
* <p>Until the message has been delivered, the message being delivered will
* be returned. Once the message has been delivered <code>null</code> will be
* returned.
* @return the message associated with this token or null if already delivered.
* @throws MqttException if there was a problem completing retrieving the message
*/
public MqttMessage getMessage() throws MqttException {
return internalTok.getMessage();
}
protected void setMessage(MqttMessage msg) {
internalTok.setMessage(msg);
}
}