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API fixes.

git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@1809 b35dd754-fafc-0310-a699-88a17e54d16e
This commit is contained in:
Matt Tucker 2003-01-17 18:37:44 +00:00 committed by mtucker
parent 83016425cf
commit bd07f5a9aa

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@ -58,7 +58,7 @@ Working with the Roster
CONTENT COMING SOON CONTENT COMING SOON
<p class="subheader"> <p class="subheader">
Packets, the PacketReader, and the PacketWriter Packets -- Reading and Writing
</p> </p>
Each message to the XMPP server from a client is called a packet and is Each message to the XMPP server from a client is called a packet and is
@ -67,25 +67,28 @@ classes that encapsulate the different packet types allowed by XMPP (message,
presence, and IQ). Classes such as <tt>Chat</tt> and <tt>GroupChat</tt> presence, and IQ). Classes such as <tt>Chat</tt> and <tt>GroupChat</tt>
provide higher-level constructs that manage creating and sending packets provide higher-level constructs that manage creating and sending packets
automatically, but you can also create and send packets directly. Below automatically, but you can also create and send packets directly. Below
is a code example for changing the presence to let people we're unavailable is a code example for changing our presence to let people know we're unavailable
because we're out fishing:<p> because we're "out fishing":<p>
<div class="code"> <div class="code">
<pre> <pre>
<font color="gray"><i>// Create a new presence. Pass in false to indicate we're unavailable.</i></font> <font color="gray"><i>// Create a new presence. Pass in false to indicate we're unavailable.</i></font>
Presence presence = new Presence(false); Presence presence = new Presence(Presence.Type.UNAVAILABLE);
presence.setStatus(<font color="green">"Gone fishing"</font>); presence.setStatus(<font color="green">"Gone fishing"</font>);
<font color="gray"><i>// Send the packet (assume we have a XMPPConnection instance called "con").</i></font> <font color="gray"><i>// Send the packet (assume we have a XMPPConnection instance called "con").</i></font>
con.getPacketWriter().sendPacket(presence); con.sendPacket(presence);
</pre></div> </pre></div>
<p> <p>
Every connection has a <tt>PacketReader</tt> and <tt>PacketWriter</tt>. The Smack provides two ways to read incoming packets: <tt>PacketListener</tt>, and
packet reader listens for XML data from the server and parses it into <tt>PacketCollector</tt>. Both use <tt>PacketFilter</tt> instances to determine
individual packets. You can listen for incoming packets by registering which packets should be processed. A packet listener is used for event style programming,
<tt>PacketWatcher</tt> objects with the packet reader. The packet writer while a packet collector has a result queue of packets that you can do
is responsible for writing packets to the server. It takes <tt>Packet</tt> polling and blocking operations on. So, a packet listener is useful when
objects and converts them to XML before sending them over the network. you want to take some action whenever a packet happens to come in, while a
packet collector is useful when you want to wait for a specific packet
to come through. Packet collectors and listeners can be created using the
connection object.
<p><div class="footer"> <p><div class="footer">