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<div class="subTitle">org.eclipse.paho.client.mqttv3</div>
<h2 title="Interface IMqttActionListener" class="title">Interface IMqttActionListener</h2>
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<dd><a href="../../../../../org/eclipse/paho/client/mqttv3/internal/ConnectActionListener.html" title="class in org.eclipse.paho.client.mqttv3.internal">ConnectActionListener</a></dd>
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<pre>public interface <span class="typeNameLabel">IMqttActionListener</span></pre>
<div class="block">Implementors of this interface will be notified when an asynchronous action completes.
<p>A listener is registered on an MqttToken and a token is associated
with an action like connect or publish. When used with tokens on the MqttAsyncClient
the listener will be called back on the MQTT client's thread. The listener will be informed
if the action succeeds or fails. It is important that the listener returns control quickly
otherwise the operation of the MQTT client will be stalled.
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/eclipse/paho/client/mqttv3/IMqttActionListener.html#onFailure-org.eclipse.paho.client.mqttv3.IMqttToken-java.lang.Throwable-">onFailure</a></span>(<a href="../../../../../org/eclipse/paho/client/mqttv3/IMqttToken.html" title="interface in org.eclipse.paho.client.mqttv3">IMqttToken</a>&nbsp;asyncActionToken,
java.lang.Throwable&nbsp;exception)</code>
<div class="block">This method is invoked when an action fails.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/eclipse/paho/client/mqttv3/IMqttActionListener.html#onSuccess-org.eclipse.paho.client.mqttv3.IMqttToken-">onSuccess</a></span>(<a href="../../../../../org/eclipse/paho/client/mqttv3/IMqttToken.html" title="interface in org.eclipse.paho.client.mqttv3">IMqttToken</a>&nbsp;asyncActionToken)</code>
<div class="block">This method is invoked when an action has completed successfully.</div>
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<h4>onSuccess</h4>
<pre>void&nbsp;onSuccess(<a href="../../../../../org/eclipse/paho/client/mqttv3/IMqttToken.html" title="interface in org.eclipse.paho.client.mqttv3">IMqttToken</a>&nbsp;asyncActionToken)</pre>
<div class="block">This method is invoked when an action has completed successfully.</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>asyncActionToken</code> - associated with the action that has completed</dd>
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<h4>onFailure</h4>
<pre>void&nbsp;onFailure(<a href="../../../../../org/eclipse/paho/client/mqttv3/IMqttToken.html" title="interface in org.eclipse.paho.client.mqttv3">IMqttToken</a>&nbsp;asyncActionToken,
java.lang.Throwable&nbsp;exception)</pre>
<div class="block">This method is invoked when an action fails.
If a client is disconnected while an action is in progress
onFailure will be called. For connections
that use cleanSession set to false, any QoS 1 and 2 messages that
are in the process of being delivered will be delivered to the requested
quality of service next time the client connects.</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>asyncActionToken</code> - associated with the action that has failed</dd>
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