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ReadFuture (Apache MINA 2.0.5 API)
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org.apache.mina.core.future</FONT>
<BR>
Interface ReadFuture</H2>
<DL>
<DT><B>All Superinterfaces:</B> <DD><A HREF="../../../../../org/apache/mina/core/future/IoFuture.html" title="interface in org.apache.mina.core.future">IoFuture</A></DD>
</DL>
<DL>
<DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../../../org/apache/mina/core/future/DefaultReadFuture.html" title="class in org.apache.mina.core.future">DefaultReadFuture</A></DD>
</DL>
<HR>
<DL>
<DT><PRE>public interface <B>ReadFuture</B><DT>extends <A HREF="../../../../../org/apache/mina/core/future/IoFuture.html" title="interface in org.apache.mina.core.future">IoFuture</A></DL>
</PRE>
<P>
An <A HREF="../../../../../org/apache/mina/core/future/IoFuture.html" title="interface in org.apache.mina.core.future"><CODE>IoFuture</CODE></A> for <A HREF="../../../../../org/apache/mina/core/session/IoSession.html#read()"><CODE>asynchronous read requests</CODE></A>.
<h3>Example</h3>
<pre>
IoSession session = ...;
// useReadOperation must be enabled to use read operation.
session.getConfig().setUseReadOperation(true);
ReadFuture future = session.read();
// Wait until a message is received.
future.await();
try {
Object message = future.getMessage();
} catch (Exception e) {
...
}
</pre>
<P>
<P>
<DL>
<DT><B>Author:</B></DT>
<DD><a href="http://mina.apache.org">Apache MINA Project</a></DD>
</DL>
<HR>
<P>
<!-- ========== METHOD SUMMARY =========== -->
<A NAME="method_summary"><!-- --></A>
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
<B>Method Summary</B></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../../org/apache/mina/core/future/ReadFuture.html" title="interface in org.apache.mina.core.future">ReadFuture</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/mina/core/future/ReadFuture.html#addListener(org.apache.mina.core.future.IoFutureListener)">addListener</A></B>(<A HREF="../../../../../org/apache/mina/core/future/IoFutureListener.html" title="interface in org.apache.mina.core.future">IoFutureListener</A>&lt;?&gt;&nbsp;listener)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Adds an event <tt>listener</tt> which is notified when
this future is completed.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../../org/apache/mina/core/future/ReadFuture.html" title="interface in org.apache.mina.core.future">ReadFuture</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/mina/core/future/ReadFuture.html#await()">await</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Wait for the asynchronous operation to complete.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../../org/apache/mina/core/future/ReadFuture.html" title="interface in org.apache.mina.core.future">ReadFuture</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/mina/core/future/ReadFuture.html#awaitUninterruptibly()">awaitUninterruptibly</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Wait for the asynchronous operation to complete uninterruptibly.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/mina/core/future/ReadFuture.html#getException()">getException</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the cause of the read failure if and only if the read
operation has failed due to an <A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang"><CODE>Exception</CODE></A>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/mina/core/future/ReadFuture.html#getMessage()">getMessage</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the received message.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/mina/core/future/ReadFuture.html#isClosed()">isClosed</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns <tt>true</tt> if the <A HREF="../../../../../org/apache/mina/core/session/IoSession.html" title="interface in org.apache.mina.core.session"><CODE>IoSession</CODE></A> associated with this
future has been closed.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/mina/core/future/ReadFuture.html#isRead()">isRead</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns <tt>true</tt> if a message was received successfully.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../../org/apache/mina/core/future/ReadFuture.html" title="interface in org.apache.mina.core.future">ReadFuture</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/mina/core/future/ReadFuture.html#removeListener(org.apache.mina.core.future.IoFutureListener)">removeListener</A></B>(<A HREF="../../../../../org/apache/mina/core/future/IoFutureListener.html" title="interface in org.apache.mina.core.future">IoFutureListener</A>&lt;?&gt;&nbsp;listener)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Removes an existing event <tt>listener</tt> so it won't be notified when
the future is completed.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/mina/core/future/ReadFuture.html#setClosed()">setClosed</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the associated <A HREF="../../../../../org/apache/mina/core/session/IoSession.html" title="interface in org.apache.mina.core.session"><CODE>IoSession</CODE></A> is closed.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/mina/core/future/ReadFuture.html#setException(java.lang.Throwable)">setException</A></B>(<A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</A>&nbsp;cause)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the cause of the read failure, and notifies all threads waiting
for this future.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/mina/core/future/ReadFuture.html#setRead(java.lang.Object)">setRead</A></B>(<A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>&nbsp;message)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the message is written, and notifies all threads waiting for
this future.</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_org.apache.mina.core.future.IoFuture"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from interface org.apache.mina.core.future.<A HREF="../../../../../org/apache/mina/core/future/IoFuture.html" title="interface in org.apache.mina.core.future">IoFuture</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../../org/apache/mina/core/future/IoFuture.html#await(long)">await</A>, <A HREF="../../../../../org/apache/mina/core/future/IoFuture.html#await(long, java.util.concurrent.TimeUnit)">await</A>, <A HREF="../../../../../org/apache/mina/core/future/IoFuture.html#awaitUninterruptibly(long)">awaitUninterruptibly</A>, <A HREF="../../../../../org/apache/mina/core/future/IoFuture.html#awaitUninterruptibly(long, java.util.concurrent.TimeUnit)">awaitUninterruptibly</A>, <A HREF="../../../../../org/apache/mina/core/future/IoFuture.html#getSession()">getSession</A>, <A HREF="../../../../../org/apache/mina/core/future/IoFuture.html#isDone()">isDone</A>, <A HREF="../../../../../org/apache/mina/core/future/IoFuture.html#join()">join</A>, <A HREF="../../../../../org/apache/mina/core/future/IoFuture.html#join(long)">join</A></CODE></TD>
</TR>
</TABLE>
&nbsp;
<P>
<!-- ============ METHOD DETAIL ========== -->
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<B>Method Detail</B></FONT></TH>
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<A NAME="getMessage()"><!-- --></A><H3>
getMessage</H3>
<PRE>
<A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A> <B>getMessage</B>()</PRE>
<DL>
<DD>Returns the received message. It returns <tt>null</tt> if this
future is not ready or the associated <A HREF="../../../../../org/apache/mina/core/session/IoSession.html" title="interface in org.apache.mina.core.session"><CODE>IoSession</CODE></A> has been closed.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/RuntimeException.html?is-external=true" title="class or interface in java.lang">RuntimeException</A></CODE> - if read or any relevant operation has failed.</DL>
</DD>
</DL>
<HR>
<A NAME="isRead()"><!-- --></A><H3>
isRead</H3>
<PRE>
boolean <B>isRead</B>()</PRE>
<DL>
<DD>Returns <tt>true</tt> if a message was received successfully.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="isClosed()"><!-- --></A><H3>
isClosed</H3>
<PRE>
boolean <B>isClosed</B>()</PRE>
<DL>
<DD>Returns <tt>true</tt> if the <A HREF="../../../../../org/apache/mina/core/session/IoSession.html" title="interface in org.apache.mina.core.session"><CODE>IoSession</CODE></A> associated with this
future has been closed.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getException()"><!-- --></A><H3>
getException</H3>
<PRE>
<A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</A> <B>getException</B>()</PRE>
<DL>
<DD>Returns the cause of the read failure if and only if the read
operation has failed due to an <A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang"><CODE>Exception</CODE></A>. Otherwise,
<tt>null</tt> is returned.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="setRead(java.lang.Object)"><!-- --></A><H3>
setRead</H3>
<PRE>
void <B>setRead</B>(<A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>&nbsp;message)</PRE>
<DL>
<DD>Sets the message is written, and notifies all threads waiting for
this future. This method is invoked by MINA internally. Please do
not call this method directly.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="setClosed()"><!-- --></A><H3>
setClosed</H3>
<PRE>
void <B>setClosed</B>()</PRE>
<DL>
<DD>Sets the associated <A HREF="../../../../../org/apache/mina/core/session/IoSession.html" title="interface in org.apache.mina.core.session"><CODE>IoSession</CODE></A> is closed. This method is invoked
by MINA internally. Please do not call this method directly.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="setException(java.lang.Throwable)"><!-- --></A><H3>
setException</H3>
<PRE>
void <B>setException</B>(<A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</A>&nbsp;cause)</PRE>
<DL>
<DD>Sets the cause of the read failure, and notifies all threads waiting
for this future. This method is invoked by MINA internally. Please
do not call this method directly.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="await()"><!-- --></A><H3>
await</H3>
<PRE>
<A HREF="../../../../../org/apache/mina/core/future/ReadFuture.html" title="interface in org.apache.mina.core.future">ReadFuture</A> <B>await</B>()
throws <A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</A></PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/mina/core/future/IoFuture.html#await()">IoFuture</A></CODE></B></DD>
<DD>Wait for the asynchronous operation to complete.
The attached listeners will be notified when the operation is
completed.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/mina/core/future/IoFuture.html#await()">await</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/mina/core/future/IoFuture.html" title="interface in org.apache.mina.core.future">IoFuture</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</A></CODE></DL>
</DD>
</DL>
<HR>
<A NAME="awaitUninterruptibly()"><!-- --></A><H3>
awaitUninterruptibly</H3>
<PRE>
<A HREF="../../../../../org/apache/mina/core/future/ReadFuture.html" title="interface in org.apache.mina.core.future">ReadFuture</A> <B>awaitUninterruptibly</B>()</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/mina/core/future/IoFuture.html#awaitUninterruptibly()">IoFuture</A></CODE></B></DD>
<DD>Wait for the asynchronous operation to complete uninterruptibly.
The attached listeners will be notified when the operation is
completed.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/mina/core/future/IoFuture.html#awaitUninterruptibly()">awaitUninterruptibly</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/mina/core/future/IoFuture.html" title="interface in org.apache.mina.core.future">IoFuture</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the current IoFuture</DL>
</DD>
</DL>
<HR>
<A NAME="addListener(org.apache.mina.core.future.IoFutureListener)"><!-- --></A><H3>
addListener</H3>
<PRE>
<A HREF="../../../../../org/apache/mina/core/future/ReadFuture.html" title="interface in org.apache.mina.core.future">ReadFuture</A> <B>addListener</B>(<A HREF="../../../../../org/apache/mina/core/future/IoFutureListener.html" title="interface in org.apache.mina.core.future">IoFutureListener</A>&lt;?&gt;&nbsp;listener)</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/mina/core/future/IoFuture.html#addListener(org.apache.mina.core.future.IoFutureListener)">IoFuture</A></CODE></B></DD>
<DD>Adds an event <tt>listener</tt> which is notified when
this future is completed. If the listener is added
after the completion, the listener is directly notified.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/mina/core/future/IoFuture.html#addListener(org.apache.mina.core.future.IoFutureListener)">addListener</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/mina/core/future/IoFuture.html" title="interface in org.apache.mina.core.future">IoFuture</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="removeListener(org.apache.mina.core.future.IoFutureListener)"><!-- --></A><H3>
removeListener</H3>
<PRE>
<A HREF="../../../../../org/apache/mina/core/future/ReadFuture.html" title="interface in org.apache.mina.core.future">ReadFuture</A> <B>removeListener</B>(<A HREF="../../../../../org/apache/mina/core/future/IoFutureListener.html" title="interface in org.apache.mina.core.future">IoFutureListener</A>&lt;?&gt;&nbsp;listener)</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../../org/apache/mina/core/future/IoFuture.html#removeListener(org.apache.mina.core.future.IoFutureListener)">IoFuture</A></CODE></B></DD>
<DD>Removes an existing event <tt>listener</tt> so it won't be notified when
the future is completed.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/mina/core/future/IoFuture.html#removeListener(org.apache.mina.core.future.IoFutureListener)">removeListener</A></CODE> in interface <CODE><A HREF="../../../../../org/apache/mina/core/future/IoFuture.html" title="interface in org.apache.mina.core.future">IoFuture</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
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