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ListenableFutureTask (Guava Libraries 2010.01.04)
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com.google.common.util.concurrent</FONT>
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Class ListenableFutureTask&lt;V&gt;</H2>
<PRE>
<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A>
<IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><A HREF="http://java.sun.com/javase/6/docs/api/java/util/concurrent/FutureTask.html?is-external=true" title="class or interface in java.util.concurrent">java.util.concurrent.FutureTask</A>&lt;V&gt;
<IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>com.google.common.util.concurrent.ListenableFutureTask&lt;V&gt;</B>
</PRE>
<DL>
<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../../com/google/common/util/concurrent/ListenableFuture.html" title="interface in com.google.common.util.concurrent">ListenableFuture</A>&lt;V&gt;, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Runnable.html?is-external=true" title="class or interface in java.lang">Runnable</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/util/concurrent/Future.html?is-external=true" title="class or interface in java.util.concurrent">Future</A>&lt;V&gt;, <A HREF="http://java.sun.com/javase/6/docs/api/java/util/concurrent/RunnableFuture.html?is-external=true" title="class or interface in java.util.concurrent">RunnableFuture</A>&lt;V&gt;</DD>
</DL>
<HR>
<DL>
<DT><PRE>public class <B>ListenableFutureTask&lt;V&gt;</B><DT>extends <A HREF="http://java.sun.com/javase/6/docs/api/java/util/concurrent/FutureTask.html?is-external=true" title="class or interface in java.util.concurrent">FutureTask</A>&lt;V&gt;<DT>implements <A HREF="../../../../../com/google/common/util/concurrent/ListenableFuture.html" title="interface in com.google.common.util.concurrent">ListenableFuture</A>&lt;V&gt;</DL>
</PRE>
<P>
A <A HREF="http://java.sun.com/javase/6/docs/api/java/util/concurrent/FutureTask.html?is-external=true" title="class or interface in java.util.concurrent"><CODE>FutureTask</CODE></A> that also implements the <A HREF="../../../../../com/google/common/util/concurrent/ListenableFuture.html" title="interface in com.google.common.util.concurrent"><CODE>ListenableFuture</CODE></A>
interface. Subclasses must make sure to call <code>super.done()</code> if they
also override the <A HREF="../../../../../com/google/common/util/concurrent/ListenableFutureTask.html#done()"><CODE>done()</CODE></A> method, otherwise the listeners will not
be called.
<P>
<P>
<DL>
<DT><B>Since:</B></DT>
<DD>2009.09.15 <b>tentative</b></DD>
<DT><B>Author:</B></DT>
<DD>Sven Mawson</DD>
</DL>
<HR>
<P>
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<TD><CODE><B><A HREF="../../../../../com/google/common/util/concurrent/ListenableFutureTask.html#ListenableFutureTask(java.util.concurrent.Callable)">ListenableFutureTask</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/util/concurrent/Callable.html?is-external=true" title="class or interface in java.util.concurrent">Callable</A>&lt;<A HREF="../../../../../com/google/common/util/concurrent/ListenableFutureTask.html" title="type parameter in ListenableFutureTask">V</A>&gt;&nbsp;callable)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Creates a <code>ListenableFutureTask</code> that will upon running, execute the
given <code>Callable</code>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../../com/google/common/util/concurrent/ListenableFutureTask.html#ListenableFutureTask(java.lang.Runnable, V)">ListenableFutureTask</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Runnable.html?is-external=true" title="class or interface in java.lang">Runnable</A>&nbsp;runnable,
<A HREF="../../../../../com/google/common/util/concurrent/ListenableFutureTask.html" title="type parameter in ListenableFutureTask">V</A>&nbsp;result)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Creates a <code>ListenableFutureTask</code> that will upon running, execute the
given <code>Runnable</code>, and arrange that <code>get</code> will return the
given result on successful completion.</TD>
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<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/google/common/util/concurrent/ListenableFutureTask.html#addListener(java.lang.Runnable, java.util.concurrent.Executor)">addListener</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Runnable.html?is-external=true" title="class or interface in java.lang">Runnable</A>&nbsp;listener,
<A HREF="http://java.sun.com/javase/6/docs/api/java/util/concurrent/Executor.html?is-external=true" title="class or interface in java.util.concurrent">Executor</A>&nbsp;exec)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Adds a listener and executor to the ListenableFuture.</TD>
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<CODE>protected &nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/google/common/util/concurrent/ListenableFutureTask.html#done()">done</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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<A NAME="ListenableFutureTask(java.util.concurrent.Callable)"><!-- --></A><H3>
ListenableFutureTask</H3>
<PRE>
public <B>ListenableFutureTask</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/util/concurrent/Callable.html?is-external=true" title="class or interface in java.util.concurrent">Callable</A>&lt;<A HREF="../../../../../com/google/common/util/concurrent/ListenableFutureTask.html" title="type parameter in ListenableFutureTask">V</A>&gt;&nbsp;callable)</PRE>
<DL>
<DD>Creates a <code>ListenableFutureTask</code> that will upon running, execute the
given <code>Callable</code>.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>callable</CODE> - the callable task
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</A></CODE> - if callable is null</DL>
</DL>
<HR>
<A NAME="ListenableFutureTask(java.lang.Runnable,java.lang.Object)"><!-- --></A><A NAME="ListenableFutureTask(java.lang.Runnable, V)"><!-- --></A><H3>
ListenableFutureTask</H3>
<PRE>
public <B>ListenableFutureTask</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Runnable.html?is-external=true" title="class or interface in java.lang">Runnable</A>&nbsp;runnable,
<A HREF="../../../../../com/google/common/util/concurrent/ListenableFutureTask.html" title="type parameter in ListenableFutureTask">V</A>&nbsp;result)</PRE>
<DL>
<DD>Creates a <code>ListenableFutureTask</code> that will upon running, execute the
given <code>Runnable</code>, and arrange that <code>get</code> will return the
given result on successful completion.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>runnable</CODE> - the runnable task<DD><CODE>result</CODE> - the result to return on successful completion. If
you don't need a particular result, consider using
constructions of the form:
<code>ListenableFuture&lt;?&gt; f =
new ListenableFutureTask&lt;Object&gt;(runnable, null)</code>
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</A></CODE> - if runnable is null</DL>
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<A NAME="addListener(java.lang.Runnable, java.util.concurrent.Executor)"><!-- --></A><H3>
addListener</H3>
<PRE>
public void <B>addListener</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Runnable.html?is-external=true" title="class or interface in java.lang">Runnable</A>&nbsp;listener,
<A HREF="http://java.sun.com/javase/6/docs/api/java/util/concurrent/Executor.html?is-external=true" title="class or interface in java.util.concurrent">Executor</A>&nbsp;exec)</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../../com/google/common/util/concurrent/ListenableFuture.html#addListener(java.lang.Runnable, java.util.concurrent.Executor)">ListenableFuture</A></CODE></B></DD>
<DD><p>Adds a listener and executor to the ListenableFuture.
The listener will be <A HREF="http://java.sun.com/javase/6/docs/api/java/util/concurrent/Executor.html?is-external=true#execute(java.lang.Runnable)" title="class or interface in java.util.concurrent">passed
to the executor</A> for execution when the <code>Future</code>'s computation is
<A HREF="http://java.sun.com/javase/6/docs/api/java/util/concurrent/Future.html?is-external=true#isDone()" title="class or interface in java.util.concurrent">complete</A>.
<p>There is no guaranteed ordering of execution of listeners, they may get
called in the order they were added and they may get called out of order,
but any listener added through this method is guaranteed to be called once
the computation is complete.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../com/google/common/util/concurrent/ListenableFuture.html#addListener(java.lang.Runnable, java.util.concurrent.Executor)">addListener</A></CODE> in interface <CODE><A HREF="../../../../../com/google/common/util/concurrent/ListenableFuture.html" title="interface in com.google.common.util.concurrent">ListenableFuture</A>&lt;<A HREF="../../../../../com/google/common/util/concurrent/ListenableFutureTask.html" title="type parameter in ListenableFutureTask">V</A>&gt;</CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>listener</CODE> - the listener to run when the computation is complete.<DD><CODE>exec</CODE> - the executor to run the listener in.</DL>
</DD>
</DL>
<HR>
<A NAME="done()"><!-- --></A><H3>
done</H3>
<PRE>
protected void <B>done</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/util/concurrent/FutureTask.html?is-external=true#done()" title="class or interface in java.util.concurrent">done</A></CODE> in class <CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/util/concurrent/FutureTask.html?is-external=true" title="class or interface in java.util.concurrent">FutureTask</A>&lt;<A HREF="../../../../../com/google/common/util/concurrent/ListenableFutureTask.html" title="type parameter in ListenableFutureTask">V</A>&gt;</CODE></DL>
</DD>
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