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IoFilter (MINA 0.7.3 API)
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org.apache.mina.io</FONT>
<BR>
Interface IoFilter</H2>
<DL>
<DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../../org/apache/mina/io/filter/BlacklistFilter.html" title="class in org.apache.mina.io.filter">BlacklistFilter</A>, <A HREF="../../../../org/apache/mina/io/IoFilterAdapter.html" title="class in org.apache.mina.io">IoFilterAdapter</A>, <A HREF="../../../../org/apache/mina/io/filter/IoLoggingFilter.html" title="class in org.apache.mina.io.filter">IoLoggingFilter</A>, <A HREF="../../../../org/apache/mina/io/filter/IoThreadPoolFilter.html" title="class in org.apache.mina.io.filter">IoThreadPoolFilter</A>, <A HREF="../../../../org/apache/mina/io/filter/SSLFilter.html" title="class in org.apache.mina.io.filter">SSLFilter</A></DD>
</DL>
<HR>
<DL>
<DT><PRE>public interface <B>IoFilter</B></DL>
</PRE>
<P>
A filter which intercepts <A HREF="../../../../org/apache/mina/io/IoHandler.html" title="interface in org.apache.mina.io"><CODE>IoHandler</CODE></A> events like Servlet filters.
Filters can be used for these purposes:
<ul>
<li>Event logging,</li>
<li>Performance measurement,</li>
<li>Data transformation (e.g. SSL support),</li>
<li>Firewalling,</li>
<li>and many more.</li>
</ul>
<p>
Please refer to <a href="../../../../../xref/org/apache/mina/io/filter/BlacklistFilter.html"><code>BlacklistFilter</code></a>
example.
<p>
<strong>Please NEVER implement your filters to wrap
<A HREF="../../../../org/apache/mina/io/IoSession.html" title="interface in org.apache.mina.io"><CODE>IoSession</CODE></A>s.</strong> Users can cache the reference to the session,
which might malfunction if any filters are added or removed later.
<P>
<P>
<DL>
<DT><B>Version:</B></DT>
<DD>$Rev: 210062 $, $Date: 2005-07-11 12:52:38 +0900 $</DD>
<DT><B>Author:</B></DT>
<DD>Trustin Lee (trustin@apache.org)</DD>
<DT><B>See Also:</B><DD><A HREF="../../../../org/apache/mina/io/IoFilterAdapter.html" title="class in org.apache.mina.io"><CODE>IoFilterAdapter</CODE></A></DL>
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<P>
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<CODE>static&nbsp;interface</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/mina/io/IoFilter.NextFilter.html" title="interface in org.apache.mina.io">IoFilter.NextFilter</A></B></CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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<!-- ========== METHOD SUMMARY =========== -->
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<B>Method Summary</B></FONT></TH>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/mina/io/IoFilter.html#dataRead(org.apache.mina.io.IoFilter.NextFilter, org.apache.mina.io.IoSession, org.apache.mina.common.ByteBuffer)">dataRead</A></B>(<A HREF="../../../../org/apache/mina/io/IoFilter.NextFilter.html" title="interface in org.apache.mina.io">IoFilter.NextFilter</A>&nbsp;nextFilter,
<A HREF="../../../../org/apache/mina/io/IoSession.html" title="interface in org.apache.mina.io">IoSession</A>&nbsp;session,
<A HREF="../../../../org/apache/mina/common/ByteBuffer.html" title="class in org.apache.mina.common">ByteBuffer</A>&nbsp;buf)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Filters <A HREF="../../../../org/apache/mina/io/IoHandler.html#dataRead(org.apache.mina.io.IoSession, org.apache.mina.common.ByteBuffer)"><CODE>IoHandler.dataRead(IoSession, ByteBuffer)</CODE></A> event.</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/io/IoFilter.html#dataWritten(org.apache.mina.io.IoFilter.NextFilter, org.apache.mina.io.IoSession, java.lang.Object)">dataWritten</A></B>(<A HREF="../../../../org/apache/mina/io/IoFilter.NextFilter.html" title="interface in org.apache.mina.io">IoFilter.NextFilter</A>&nbsp;nextFilter,
<A HREF="../../../../org/apache/mina/io/IoSession.html" title="interface in org.apache.mina.io">IoSession</A>&nbsp;session,
<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>&nbsp;marker)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Filters <A HREF="../../../../org/apache/mina/io/IoHandler.html#dataWritten(org.apache.mina.io.IoSession, java.lang.Object)"><CODE>IoHandler.dataWritten(IoSession, Object)</CODE></A> event.</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/io/IoFilter.html#exceptionCaught(org.apache.mina.io.IoFilter.NextFilter, org.apache.mina.io.IoSession, java.lang.Throwable)">exceptionCaught</A></B>(<A HREF="../../../../org/apache/mina/io/IoFilter.NextFilter.html" title="interface in org.apache.mina.io">IoFilter.NextFilter</A>&nbsp;nextFilter,
<A HREF="../../../../org/apache/mina/io/IoSession.html" title="interface in org.apache.mina.io">IoSession</A>&nbsp;session,
<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Throwable.html" title="class or interface in java.lang">Throwable</A>&nbsp;cause)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Filters <A HREF="../../../../org/apache/mina/io/IoHandler.html#exceptionCaught(org.apache.mina.io.IoSession, java.lang.Throwable)"><CODE>IoHandler.exceptionCaught(IoSession, Throwable)</CODE></A> event.</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/io/IoFilter.html#filterWrite(org.apache.mina.io.IoFilter.NextFilter, org.apache.mina.io.IoSession, org.apache.mina.common.ByteBuffer, java.lang.Object)">filterWrite</A></B>(<A HREF="../../../../org/apache/mina/io/IoFilter.NextFilter.html" title="interface in org.apache.mina.io">IoFilter.NextFilter</A>&nbsp;nextFilter,
<A HREF="../../../../org/apache/mina/io/IoSession.html" title="interface in org.apache.mina.io">IoSession</A>&nbsp;session,
<A HREF="../../../../org/apache/mina/common/ByteBuffer.html" title="class in org.apache.mina.common">ByteBuffer</A>&nbsp;buf,
<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>&nbsp;marker)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Filters <A HREF="../../../../org/apache/mina/io/IoSession.html#write(org.apache.mina.common.ByteBuffer, java.lang.Object)"><CODE>IoSession.write(ByteBuffer, Object)</CODE></A> method invocation.</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/io/IoFilter.html#sessionClosed(org.apache.mina.io.IoFilter.NextFilter, org.apache.mina.io.IoSession)">sessionClosed</A></B>(<A HREF="../../../../org/apache/mina/io/IoFilter.NextFilter.html" title="interface in org.apache.mina.io">IoFilter.NextFilter</A>&nbsp;nextFilter,
<A HREF="../../../../org/apache/mina/io/IoSession.html" title="interface in org.apache.mina.io">IoSession</A>&nbsp;session)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Filters <A HREF="../../../../org/apache/mina/io/IoHandler.html#sessionClosed(org.apache.mina.io.IoSession)"><CODE>IoHandler.sessionClosed(IoSession)</CODE></A> event.</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/io/IoFilter.html#sessionIdle(org.apache.mina.io.IoFilter.NextFilter, org.apache.mina.io.IoSession, org.apache.mina.common.IdleStatus)">sessionIdle</A></B>(<A HREF="../../../../org/apache/mina/io/IoFilter.NextFilter.html" title="interface in org.apache.mina.io">IoFilter.NextFilter</A>&nbsp;nextFilter,
<A HREF="../../../../org/apache/mina/io/IoSession.html" title="interface in org.apache.mina.io">IoSession</A>&nbsp;session,
<A HREF="../../../../org/apache/mina/common/IdleStatus.html" title="class in org.apache.mina.common">IdleStatus</A>&nbsp;status)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Filters <A HREF="../../../../org/apache/mina/io/IoHandler.html#sessionIdle(org.apache.mina.io.IoSession, org.apache.mina.common.IdleStatus)"><CODE>IoHandler.sessionIdle(IoSession, IdleStatus)</CODE></A> event.</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/io/IoFilter.html#sessionOpened(org.apache.mina.io.IoFilter.NextFilter, org.apache.mina.io.IoSession)">sessionOpened</A></B>(<A HREF="../../../../org/apache/mina/io/IoFilter.NextFilter.html" title="interface in org.apache.mina.io">IoFilter.NextFilter</A>&nbsp;nextFilter,
<A HREF="../../../../org/apache/mina/io/IoSession.html" title="interface in org.apache.mina.io">IoSession</A>&nbsp;session)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Filters <A HREF="../../../../org/apache/mina/io/IoHandler.html#sessionOpened(org.apache.mina.io.IoSession)"><CODE>IoHandler.sessionOpened(IoSession)</CODE></A> event.</TD>
</TR>
</TABLE>
&nbsp;
<P>
<!-- ============ METHOD DETAIL ========== -->
<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<B>Method Detail</B></FONT></TH>
</TR>
</TABLE>
<A NAME="sessionOpened(org.apache.mina.io.IoFilter.NextFilter, org.apache.mina.io.IoSession)"><!-- --></A><H3>
sessionOpened</H3>
<PRE>
void <B>sessionOpened</B>(<A HREF="../../../../org/apache/mina/io/IoFilter.NextFilter.html" title="interface in org.apache.mina.io">IoFilter.NextFilter</A>&nbsp;nextFilter,
<A HREF="../../../../org/apache/mina/io/IoSession.html" title="interface in org.apache.mina.io">IoSession</A>&nbsp;session)
throws <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Exception.html" title="class or interface in java.lang">Exception</A></PRE>
<DL>
<DD>Filters <A HREF="../../../../org/apache/mina/io/IoHandler.html#sessionOpened(org.apache.mina.io.IoSession)"><CODE>IoHandler.sessionOpened(IoSession)</CODE></A> event.
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Exception.html" title="class or interface in java.lang">Exception</A></CODE></DL>
</DD>
</DL>
<HR>
<A NAME="sessionClosed(org.apache.mina.io.IoFilter.NextFilter, org.apache.mina.io.IoSession)"><!-- --></A><H3>
sessionClosed</H3>
<PRE>
void <B>sessionClosed</B>(<A HREF="../../../../org/apache/mina/io/IoFilter.NextFilter.html" title="interface in org.apache.mina.io">IoFilter.NextFilter</A>&nbsp;nextFilter,
<A HREF="../../../../org/apache/mina/io/IoSession.html" title="interface in org.apache.mina.io">IoSession</A>&nbsp;session)
throws <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Exception.html" title="class or interface in java.lang">Exception</A></PRE>
<DL>
<DD>Filters <A HREF="../../../../org/apache/mina/io/IoHandler.html#sessionClosed(org.apache.mina.io.IoSession)"><CODE>IoHandler.sessionClosed(IoSession)</CODE></A> event.
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Exception.html" title="class or interface in java.lang">Exception</A></CODE></DL>
</DD>
</DL>
<HR>
<A NAME="sessionIdle(org.apache.mina.io.IoFilter.NextFilter, org.apache.mina.io.IoSession, org.apache.mina.common.IdleStatus)"><!-- --></A><H3>
sessionIdle</H3>
<PRE>
void <B>sessionIdle</B>(<A HREF="../../../../org/apache/mina/io/IoFilter.NextFilter.html" title="interface in org.apache.mina.io">IoFilter.NextFilter</A>&nbsp;nextFilter,
<A HREF="../../../../org/apache/mina/io/IoSession.html" title="interface in org.apache.mina.io">IoSession</A>&nbsp;session,
<A HREF="../../../../org/apache/mina/common/IdleStatus.html" title="class in org.apache.mina.common">IdleStatus</A>&nbsp;status)
throws <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Exception.html" title="class or interface in java.lang">Exception</A></PRE>
<DL>
<DD>Filters <A HREF="../../../../org/apache/mina/io/IoHandler.html#sessionIdle(org.apache.mina.io.IoSession, org.apache.mina.common.IdleStatus)"><CODE>IoHandler.sessionIdle(IoSession, IdleStatus)</CODE></A> event.
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Exception.html" title="class or interface in java.lang">Exception</A></CODE></DL>
</DD>
</DL>
<HR>
<A NAME="exceptionCaught(org.apache.mina.io.IoFilter.NextFilter, org.apache.mina.io.IoSession, java.lang.Throwable)"><!-- --></A><H3>
exceptionCaught</H3>
<PRE>
void <B>exceptionCaught</B>(<A HREF="../../../../org/apache/mina/io/IoFilter.NextFilter.html" title="interface in org.apache.mina.io">IoFilter.NextFilter</A>&nbsp;nextFilter,
<A HREF="../../../../org/apache/mina/io/IoSession.html" title="interface in org.apache.mina.io">IoSession</A>&nbsp;session,
<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Throwable.html" title="class or interface in java.lang">Throwable</A>&nbsp;cause)
throws <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Exception.html" title="class or interface in java.lang">Exception</A></PRE>
<DL>
<DD>Filters <A HREF="../../../../org/apache/mina/io/IoHandler.html#exceptionCaught(org.apache.mina.io.IoSession, java.lang.Throwable)"><CODE>IoHandler.exceptionCaught(IoSession, Throwable)</CODE></A> event.
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Exception.html" title="class or interface in java.lang">Exception</A></CODE></DL>
</DD>
</DL>
<HR>
<A NAME="dataRead(org.apache.mina.io.IoFilter.NextFilter, org.apache.mina.io.IoSession, org.apache.mina.common.ByteBuffer)"><!-- --></A><H3>
dataRead</H3>
<PRE>
void <B>dataRead</B>(<A HREF="../../../../org/apache/mina/io/IoFilter.NextFilter.html" title="interface in org.apache.mina.io">IoFilter.NextFilter</A>&nbsp;nextFilter,
<A HREF="../../../../org/apache/mina/io/IoSession.html" title="interface in org.apache.mina.io">IoSession</A>&nbsp;session,
<A HREF="../../../../org/apache/mina/common/ByteBuffer.html" title="class in org.apache.mina.common">ByteBuffer</A>&nbsp;buf)
throws <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Exception.html" title="class or interface in java.lang">Exception</A></PRE>
<DL>
<DD>Filters <A HREF="../../../../org/apache/mina/io/IoHandler.html#dataRead(org.apache.mina.io.IoSession, org.apache.mina.common.ByteBuffer)"><CODE>IoHandler.dataRead(IoSession, ByteBuffer)</CODE></A> event.
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Exception.html" title="class or interface in java.lang">Exception</A></CODE></DL>
</DD>
</DL>
<HR>
<A NAME="dataWritten(org.apache.mina.io.IoFilter.NextFilter, org.apache.mina.io.IoSession, java.lang.Object)"><!-- --></A><H3>
dataWritten</H3>
<PRE>
void <B>dataWritten</B>(<A HREF="../../../../org/apache/mina/io/IoFilter.NextFilter.html" title="interface in org.apache.mina.io">IoFilter.NextFilter</A>&nbsp;nextFilter,
<A HREF="../../../../org/apache/mina/io/IoSession.html" title="interface in org.apache.mina.io">IoSession</A>&nbsp;session,
<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>&nbsp;marker)
throws <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Exception.html" title="class or interface in java.lang">Exception</A></PRE>
<DL>
<DD>Filters <A HREF="../../../../org/apache/mina/io/IoHandler.html#dataWritten(org.apache.mina.io.IoSession, java.lang.Object)"><CODE>IoHandler.dataWritten(IoSession, Object)</CODE></A> event.
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Exception.html" title="class or interface in java.lang">Exception</A></CODE></DL>
</DD>
</DL>
<HR>
<A NAME="filterWrite(org.apache.mina.io.IoFilter.NextFilter, org.apache.mina.io.IoSession, org.apache.mina.common.ByteBuffer, java.lang.Object)"><!-- --></A><H3>
filterWrite</H3>
<PRE>
void <B>filterWrite</B>(<A HREF="../../../../org/apache/mina/io/IoFilter.NextFilter.html" title="interface in org.apache.mina.io">IoFilter.NextFilter</A>&nbsp;nextFilter,
<A HREF="../../../../org/apache/mina/io/IoSession.html" title="interface in org.apache.mina.io">IoSession</A>&nbsp;session,
<A HREF="../../../../org/apache/mina/common/ByteBuffer.html" title="class in org.apache.mina.common">ByteBuffer</A>&nbsp;buf,
<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>&nbsp;marker)
throws <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Exception.html" title="class or interface in java.lang">Exception</A></PRE>
<DL>
<DD>Filters <A HREF="../../../../org/apache/mina/io/IoSession.html#write(org.apache.mina.common.ByteBuffer, java.lang.Object)"><CODE>IoSession.write(ByteBuffer, Object)</CODE></A> method invocation.
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Exception.html" title="class or interface in java.lang">Exception</A></CODE></DL>
</DD>
</DL>
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