content/release-doc/current/internals/net/jini/discovery/AbstractLookupDiscovery.DecodeAnnouncementTask.html - river-site - Git at Google

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 <h2 title="Class AbstractLookupDiscovery.DecodeAnnouncementTask" class="title">Class AbstractLookupDiscovery.DecodeAnnouncementTask</h2>
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 <pre>private class <span class="typeNameLabel">AbstractLookupDiscovery.DecodeAnnouncementTask</span>
 extends <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
 implements <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Runnable.html?is-external=true" title="class or interface in java.lang">Runnable</a></pre>
 <div class="block">Task which decodes received multicast announcement packets.  This is
  separated into a task to allow the AnnouncementListener thread to
  quickly loop and receive new announcement packets; the act of decoding
  packets may involve relatively slow cryptographic operations such as
  signature verification, and would impede the packet receiving loop if it
  were performed inline.</div>
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 <td class="colFirst"><code>private <a href="http://docs.oracle.com/javase/6/docs/api/java/net/DatagramPacket.html?is-external=true" title="class or interface in java.net">DatagramPacket</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../net/jini/discovery/AbstractLookupDiscovery.DecodeAnnouncementTask.html#datagram">datagram</a></span></code>&nbsp;</td>
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 <td class="colOne"><code><span class="memberNameLink"><a href="../../../net/jini/discovery/AbstractLookupDiscovery.DecodeAnnouncementTask.html#DecodeAnnouncementTask-java.net.DatagramPacket-">DecodeAnnouncementTask</a></span>(<a href="http://docs.oracle.com/javase/6/docs/api/java/net/DatagramPacket.html?is-external=true" title="class or interface in java.net">DatagramPacket</a>&nbsp;datagram)</code>
 <div class="block">Creates a task for decoding the given multicast announcement packet.</div>
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 <td class="colFirst"><code>private void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../net/jini/discovery/AbstractLookupDiscovery.DecodeAnnouncementTask.html#doRun--">doRun</a></span>()</code>
 <div class="block">Decodes this task's multicast announcement packet.</div>
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 <td class="colFirst"><code>private boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../net/jini/discovery/AbstractLookupDiscovery.DecodeAnnouncementTask.html#newSeqNum-long-long-">newSeqNum</a></span>(long&nbsp;currentNum,
          long&nbsp;oldNum)</code>
 <div class="block">Returns <code>true</code> if currentNum is a new sequence number
  that needs to be inspected.</div>
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 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../net/jini/discovery/AbstractLookupDiscovery.DecodeAnnouncementTask.html#run--">run</a></span>()</code>
 <div class="block">Restore the privileged context and run</div>
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 <pre>private final&nbsp;<a href="http://docs.oracle.com/javase/6/docs/api/java/net/DatagramPacket.html?is-external=true" title="class or interface in java.net">DatagramPacket</a> datagram</pre>
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 <h4>DecodeAnnouncementTask</h4>
 <pre>public&nbsp;DecodeAnnouncementTask(<a href="http://docs.oracle.com/javase/6/docs/api/java/net/DatagramPacket.html?is-external=true" title="class or interface in java.net">DatagramPacket</a>&nbsp;datagram)</pre>
 <div class="block">Creates a task for decoding the given multicast announcement packet.</div>
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 <pre>public&nbsp;void&nbsp;run()</pre>
 <div class="block">Restore the privileged context and run</div>
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 <dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Runnable.html?is-external=true#run--" title="class or interface in java.lang">run</a></code>&nbsp;in interface&nbsp;<code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Runnable.html?is-external=true" title="class or interface in java.lang">Runnable</a></code></dd>
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 <pre>private&nbsp;void&nbsp;doRun()</pre>
 <div class="block">Decodes this task's multicast announcement packet.  If the
  constraints for decoding multicast announcements are satisfied and
  the announcement merits further processing, an appropriate object is
  added to the pendingDiscoveries set, and control is transferred to a
  UnicastDiscoveryTask.</div>
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 <pre>private&nbsp;boolean&nbsp;newSeqNum(long&nbsp;currentNum,
                           long&nbsp;oldNum)</pre>
 <div class="block">Returns <code>true</code> if currentNum is a new sequence number
  that needs to be inspected. A -1 occurs if the announcement had no
  sequence number (for e.g. DiscoveryV1) or the service had been
  discovered through unicast discovery. REMIND: Ideally the
  message should have a flag which indicates no sequence number instead
  of overloading the -1 value</div>
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	<h2 title="Class AbstractLookupDiscovery.DecodeAnnouncementTask" class="title">Class AbstractLookupDiscovery.DecodeAnnouncementTask</h2>
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	<pre>private class <span class="typeNameLabel">AbstractLookupDiscovery.DecodeAnnouncementTask</span>
	extends <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
	implements <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Runnable.html?is-external=true" title="class or interface in java.lang">Runnable</a></pre>
	<div class="block">Task which decodes received multicast announcement packets. This is
	separated into a task to allow the AnnouncementListener thread to
	quickly loop and receive new announcement packets; the act of decoding
	packets may involve relatively slow cryptographic operations such as
	signature verification, and would impede the packet receiving loop if it
	were performed inline.</div>
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	<td class="colFirst"><code>private <a href="http://docs.oracle.com/javase/6/docs/api/java/net/DatagramPacket.html?is-external=true" title="class or interface in java.net">DatagramPacket</a></code></td>
	<td class="colLast"><code><span class="memberNameLink"><a href="../../../net/jini/discovery/AbstractLookupDiscovery.DecodeAnnouncementTask.html#datagram">datagram</a></span></code> </td>
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	<td class="colOne"><code><span class="memberNameLink"><a href="../../../net/jini/discovery/AbstractLookupDiscovery.DecodeAnnouncementTask.html#DecodeAnnouncementTask-java.net.DatagramPacket-">DecodeAnnouncementTask</a></span>(<a href="http://docs.oracle.com/javase/6/docs/api/java/net/DatagramPacket.html?is-external=true" title="class or interface in java.net">DatagramPacket</a> datagram)</code>
	<div class="block">Creates a task for decoding the given multicast announcement packet.</div>
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	<td class="colFirst"><code>private void</code></td>
	<td class="colLast"><code><span class="memberNameLink"><a href="../../../net/jini/discovery/AbstractLookupDiscovery.DecodeAnnouncementTask.html#doRun--">doRun</a></span>()</code>
	<div class="block">Decodes this task's multicast announcement packet.</div>
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	<td class="colFirst"><code>private boolean</code></td>
	<td class="colLast"><code><span class="memberNameLink"><a href="../../../net/jini/discovery/AbstractLookupDiscovery.DecodeAnnouncementTask.html#newSeqNum-long-long-">newSeqNum</a></span>(long currentNum,
	long oldNum)</code>
	<div class="block">Returns <code>true</code> if currentNum is a new sequence number
	that needs to be inspected.</div>
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	<td class="colFirst"><code>void</code></td>
	<td class="colLast"><code><span class="memberNameLink"><a href="../../../net/jini/discovery/AbstractLookupDiscovery.DecodeAnnouncementTask.html#run--">run</a></span>()</code>
	<div class="block">Restore the privileged context and run</div>
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	<code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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	<h4>datagram</h4>
	<pre>private final <a href="http://docs.oracle.com/javase/6/docs/api/java/net/DatagramPacket.html?is-external=true" title="class or interface in java.net">DatagramPacket</a> datagram</pre>
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	<h4>DecodeAnnouncementTask</h4>
	<pre>public DecodeAnnouncementTask(<a href="http://docs.oracle.com/javase/6/docs/api/java/net/DatagramPacket.html?is-external=true" title="class or interface in java.net">DatagramPacket</a> datagram)</pre>
	<div class="block">Creates a task for decoding the given multicast announcement packet.</div>
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	<h4>run</h4>
	<pre>public void run()</pre>
	<div class="block">Restore the privileged context and run</div>
	<dl>
	<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
	<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Runnable.html?is-external=true#run--" title="class or interface in java.lang">run</a></code> in interface <code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Runnable.html?is-external=true" title="class or interface in java.lang">Runnable</a></code></dd>
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	<h4>doRun</h4>
	<pre>private void doRun()</pre>
	<div class="block">Decodes this task's multicast announcement packet. If the
	constraints for decoding multicast announcements are satisfied and
	the announcement merits further processing, an appropriate object is
	added to the pendingDiscoveries set, and control is transferred to a
	UnicastDiscoveryTask.</div>
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	<h4>newSeqNum</h4>
	<pre>private boolean newSeqNum(long currentNum,
	long oldNum)</pre>
	<div class="block">Returns <code>true</code> if currentNum is a new sequence number
	that needs to be inspected. A -1 occurs if the announcement had no
	sequence number (for e.g. DiscoveryV1) or the service had been
	discovered through unicast discovery. REMIND: Ideally the
	message should have a flag which indicates no sequence number instead
	of overloading the -1 value</div>
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