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MqttTopic (MQTT v3 Client API)
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org.eclipse.paho.client.mqttv3</FONT>
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Class MqttTopic</H2>
<PRE>
java.lang.Object
<IMG SRC="../../../../../resources/inherit.gif" ALT="extended by"><B>org.eclipse.paho.client.mqttv3.MqttTopic</B>
</PRE>
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<DL>
<DT>public class <B>MqttTopic</B><DT>extends java.lang.Object</DL>
<P>
Represents a topic destination, used for publish/subscribe messaging.
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<CODE> java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/eclipse/paho/client/mqttv3/MqttTopic.html#getName()">getName</A></B>()</CODE>
<BR>
Returns the name of the queue or topic.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../../org/eclipse/paho/client/mqttv3/MqttDeliveryToken.html" title="interface in org.eclipse.paho.client.mqttv3">MqttDeliveryToken</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/eclipse/paho/client/mqttv3/MqttTopic.html#publish(byte[], int, boolean)">publish</A></B>(byte[] payload,
int qos,
boolean retained)</CODE>
<BR>
Publishes a message on the topic. </TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../../org/eclipse/paho/client/mqttv3/MqttDeliveryToken.html" title="interface in org.eclipse.paho.client.mqttv3">MqttDeliveryToken</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/eclipse/paho/client/mqttv3/MqttTopic.html#publish(org.eclipse.paho.client.mqttv3.MqttMessage)">publish</A></B>(<A HREF="../../../../../org/eclipse/paho/client/mqttv3/MqttMessage.html" title="class in org.eclipse.paho.client.mqttv3">MqttMessage</A> message)</CODE>
<BR>
Publishes the specified message to this topic, but doesn't wait for
a response. </TD>
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<CODE> java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/eclipse/paho/client/mqttv3/MqttTopic.html#toString()">toString</A></B>()</CODE>
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Returns a string representation of this topic.</TD>
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<A NAME="publish(byte[], int, boolean)"><!-- --></A><H3>
publish</H3>
<PRE>
public <A HREF="../../../../../org/eclipse/paho/client/mqttv3/MqttDeliveryToken.html" title="interface in org.eclipse.paho.client.mqttv3">MqttDeliveryToken</A> <B>publish</B>(byte[] payload,
int qos,
boolean retained)
throws <A HREF="../../../../../org/eclipse/paho/client/mqttv3/MqttException.html" title="class in org.eclipse.paho.client.mqttv3">MqttException</A>,
<A HREF="../../../../../org/eclipse/paho/client/mqttv3/MqttPersistenceException.html" title="class in org.eclipse.paho.client.mqttv3">MqttPersistenceException</A></PRE>
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<DD>Publishes a message on the topic. This is a convenience method, which will
create a new <A HREF="../../../../../org/eclipse/paho/client/mqttv3/MqttMessage.html" title="class in org.eclipse.paho.client.mqttv3"><CODE>MqttMessage</CODE></A> object with a byte array payload and the
specified QoS, and then publish it. All other values in the
message will be set to the defaults.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>payload</CODE> - the byte array to use as the payload<DD><CODE>qos</CODE> - the Quality of Service. Valid values are 0, 1 or 2.<DD><CODE>retained</CODE> - whether or not this message should be retained by the server.
<DT><B>Throws:</B>
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if value of QoS is not 0, 1 or 2.
<DD><CODE><A HREF="../../../../../org/eclipse/paho/client/mqttv3/MqttException.html" title="class in org.eclipse.paho.client.mqttv3">MqttException</A></CODE>
<DD><CODE><A HREF="../../../../../org/eclipse/paho/client/mqttv3/MqttPersistenceException.html" title="class in org.eclipse.paho.client.mqttv3">MqttPersistenceException</A></CODE><DT><B>See Also:</B><DD><A HREF="../../../../../org/eclipse/paho/client/mqttv3/MqttTopic.html#publish(org.eclipse.paho.client.mqttv3.MqttMessage)"><CODE>publish(MqttMessage)</CODE></A>,
<A HREF="../../../../../org/eclipse/paho/client/mqttv3/MqttMessage.html#setQos(int)"><CODE>MqttMessage.setQos(int)</CODE></A>,
<A HREF="../../../../../org/eclipse/paho/client/mqttv3/MqttMessage.html#setRetained(boolean)"><CODE>MqttMessage.setRetained(boolean)</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="publish(org.eclipse.paho.client.mqttv3.MqttMessage)"><!-- --></A><H3>
publish</H3>
<PRE>
public <A HREF="../../../../../org/eclipse/paho/client/mqttv3/MqttDeliveryToken.html" title="interface in org.eclipse.paho.client.mqttv3">MqttDeliveryToken</A> <B>publish</B>(<A HREF="../../../../../org/eclipse/paho/client/mqttv3/MqttMessage.html" title="class in org.eclipse.paho.client.mqttv3">MqttMessage</A> message)
throws <A HREF="../../../../../org/eclipse/paho/client/mqttv3/MqttException.html" title="class in org.eclipse.paho.client.mqttv3">MqttException</A>,
<A HREF="../../../../../org/eclipse/paho/client/mqttv3/MqttPersistenceException.html" title="class in org.eclipse.paho.client.mqttv3">MqttPersistenceException</A></PRE>
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<DD>Publishes the specified message to this topic, but doesn't wait for
a response. The returned <A HREF="../../../../../org/eclipse/paho/client/mqttv3/MqttDeliveryToken.html" title="interface in org.eclipse.paho.client.mqttv3"><CODE>token</CODE></A> can be used
to track the delivery status of the message. Once this message has
returned cleanly, the message has been accepted for publication by the
client - as long as a connection is available, it will try and deliver it.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>message</CODE> - the message to publish
<DT><B>Returns:</B><DD>an MqttDeliveryToken for tracking the delivery of the message
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../../org/eclipse/paho/client/mqttv3/MqttException.html" title="class in org.eclipse.paho.client.mqttv3">MqttException</A></CODE>
<DD><CODE><A HREF="../../../../../org/eclipse/paho/client/mqttv3/MqttPersistenceException.html" title="class in org.eclipse.paho.client.mqttv3">MqttPersistenceException</A></CODE></DL>
</DD>
</DL>
<HR>
<A NAME="getName()"><!-- --></A><H3>
getName</H3>
<PRE>
public java.lang.String <B>getName</B>()</PRE>
<DL>
<DD>Returns the name of the queue or topic.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the name of this destination.</DL>
</DD>
</DL>
<HR>
<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>()</PRE>
<DL>
<DD>Returns a string representation of this topic.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>a string representation of this topic.</DL>
</DD>
</DL>
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