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PrefixedStringEncoder (Apache MINA 2.0.4 API Documentation)
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org.apache.mina.filter.codec.prefixedstring</FONT>
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Class PrefixedStringEncoder</H2>
<PRE>
<A HREF="http://java.sun.com/j2se/1.5.0/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="../../../../../../org/apache/mina/filter/codec/ProtocolEncoderAdapter.html" title="class in org.apache.mina.filter.codec">org.apache.mina.filter.codec.ProtocolEncoderAdapter</A>
<IMG SRC="../../../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.mina.filter.codec.prefixedstring.PrefixedStringEncoder</B>
</PRE>
<DL>
<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../../../org/apache/mina/filter/codec/ProtocolEncoder.html" title="interface in org.apache.mina.filter.codec">ProtocolEncoder</A></DD>
</DL>
<HR>
<DL>
<DT><PRE>public class <B>PrefixedStringEncoder</B><DT>extends <A HREF="../../../../../../org/apache/mina/filter/codec/ProtocolEncoderAdapter.html" title="class in org.apache.mina.filter.codec">ProtocolEncoderAdapter</A></DL>
</PRE>
<P>
A <A HREF="../../../../../../org/apache/mina/filter/codec/ProtocolEncoder.html" title="interface in org.apache.mina.filter.codec"><CODE>ProtocolEncoder</CODE></A> which encodes a string
using a fixed-length length prefix.
<P>
<P>
<DL>
<DT><B>Author:</B></DT>
<DD><a href="http://mina.apache.org">Apache MINA Project</a></DD>
</DL>
<HR>
<P>
<!-- =========== FIELD SUMMARY =========== -->
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<CODE>static&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/mina/filter/codec/prefixedstring/PrefixedStringEncoder.html#DEFAULT_MAX_DATA_LENGTH">DEFAULT_MAX_DATA_LENGTH</A></B></CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/mina/filter/codec/prefixedstring/PrefixedStringEncoder.html#DEFAULT_PREFIX_LENGTH">DEFAULT_PREFIX_LENGTH</A></B></CODE>
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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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<TD><CODE><B><A HREF="../../../../../../org/apache/mina/filter/codec/prefixedstring/PrefixedStringEncoder.html#PrefixedStringEncoder()">PrefixedStringEncoder</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../../../org/apache/mina/filter/codec/prefixedstring/PrefixedStringEncoder.html#PrefixedStringEncoder(java.nio.charset.Charset)">PrefixedStringEncoder</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/nio/charset/Charset.html?is-external=true" title="class or interface in java.nio.charset">Charset</A>&nbsp;charset)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../../../org/apache/mina/filter/codec/prefixedstring/PrefixedStringEncoder.html#PrefixedStringEncoder(java.nio.charset.Charset, int)">PrefixedStringEncoder</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/nio/charset/Charset.html?is-external=true" title="class or interface in java.nio.charset">Charset</A>&nbsp;charset,
int&nbsp;prefixLength)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../../../org/apache/mina/filter/codec/prefixedstring/PrefixedStringEncoder.html#PrefixedStringEncoder(java.nio.charset.Charset, int, int)">PrefixedStringEncoder</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/nio/charset/Charset.html?is-external=true" title="class or interface in java.nio.charset">Charset</A>&nbsp;charset,
int&nbsp;prefixLength,
int&nbsp;maxDataLength)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/mina/filter/codec/prefixedstring/PrefixedStringEncoder.html#encode(org.apache.mina.core.session.IoSession, java.lang.Object, org.apache.mina.filter.codec.ProtocolEncoderOutput)">encode</A></B>(<A HREF="../../../../../../org/apache/mina/core/session/IoSession.html" title="interface in org.apache.mina.core.session">IoSession</A>&nbsp;session,
<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>&nbsp;message,
<A HREF="../../../../../../org/apache/mina/filter/codec/ProtocolEncoderOutput.html" title="interface in org.apache.mina.filter.codec">ProtocolEncoderOutput</A>&nbsp;out)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Encodes higher-level message objects into binary or protocol-specific data.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/mina/filter/codec/prefixedstring/PrefixedStringEncoder.html#getMaxDataLength()">getMaxDataLength</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gets the maximum number of bytes allowed for encoding a single String *</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/mina/filter/codec/prefixedstring/PrefixedStringEncoder.html#getPrefixLength()">getPrefixLength</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gets the length of the length prefix (1, 2, or 4)</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/filter/codec/prefixedstring/PrefixedStringEncoder.html#setMaxDataLength(int)">setMaxDataLength</A></B>(int&nbsp;maxDataLength)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the maximum number of bytes allowed for encoding a single String
(including the prefix)
The encoder will throw a <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang"><CODE>IllegalArgumentException</CODE></A> when more bytes
are needed to encode a String value.</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/filter/codec/prefixedstring/PrefixedStringEncoder.html#setPrefixLength(int)">setPrefixLength</A></B>(int&nbsp;prefixLength)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the number of bytes used by the length prefix</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_org.apache.mina.filter.codec.ProtocolEncoderAdapter"><!-- --></A>
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<TH ALIGN="left"><B>Methods inherited from class org.apache.mina.filter.codec.<A HREF="../../../../../../org/apache/mina/filter/codec/ProtocolEncoderAdapter.html" title="class in org.apache.mina.filter.codec">ProtocolEncoderAdapter</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../../../org/apache/mina/filter/codec/ProtocolEncoderAdapter.html#dispose(org.apache.mina.core.session.IoSession)">dispose</A></CODE></TD>
</TR>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH>
</TR>
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<A NAME="DEFAULT_PREFIX_LENGTH"><!-- --></A><H3>
DEFAULT_PREFIX_LENGTH</H3>
<PRE>
public static final int <B>DEFAULT_PREFIX_LENGTH</B></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../../constant-values.html#org.apache.mina.filter.codec.prefixedstring.PrefixedStringEncoder.DEFAULT_PREFIX_LENGTH">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="DEFAULT_MAX_DATA_LENGTH"><!-- --></A><H3>
DEFAULT_MAX_DATA_LENGTH</H3>
<PRE>
public static final int <B>DEFAULT_MAX_DATA_LENGTH</B></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../../constant-values.html#org.apache.mina.filter.codec.prefixedstring.PrefixedStringEncoder.DEFAULT_MAX_DATA_LENGTH">Constant Field Values</A></DL>
</DL>
<!-- ========= CONSTRUCTOR DETAIL ======== -->
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<A NAME="PrefixedStringEncoder(java.nio.charset.Charset, int, int)"><!-- --></A><H3>
PrefixedStringEncoder</H3>
<PRE>
public <B>PrefixedStringEncoder</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/nio/charset/Charset.html?is-external=true" title="class or interface in java.nio.charset">Charset</A>&nbsp;charset,
int&nbsp;prefixLength,
int&nbsp;maxDataLength)</PRE>
<DL>
</DL>
<HR>
<A NAME="PrefixedStringEncoder(java.nio.charset.Charset, int)"><!-- --></A><H3>
PrefixedStringEncoder</H3>
<PRE>
public <B>PrefixedStringEncoder</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/nio/charset/Charset.html?is-external=true" title="class or interface in java.nio.charset">Charset</A>&nbsp;charset,
int&nbsp;prefixLength)</PRE>
<DL>
</DL>
<HR>
<A NAME="PrefixedStringEncoder(java.nio.charset.Charset)"><!-- --></A><H3>
PrefixedStringEncoder</H3>
<PRE>
public <B>PrefixedStringEncoder</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/nio/charset/Charset.html?is-external=true" title="class or interface in java.nio.charset">Charset</A>&nbsp;charset)</PRE>
<DL>
</DL>
<HR>
<A NAME="PrefixedStringEncoder()"><!-- --></A><H3>
PrefixedStringEncoder</H3>
<PRE>
public <B>PrefixedStringEncoder</B>()</PRE>
<DL>
</DL>
<!-- ============ METHOD DETAIL ========== -->
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<A NAME="setPrefixLength(int)"><!-- --></A><H3>
setPrefixLength</H3>
<PRE>
public void <B>setPrefixLength</B>(int&nbsp;prefixLength)</PRE>
<DL>
<DD>Sets the number of bytes used by the length prefix
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>prefixLength</CODE> - the length of the length prefix (1, 2, or 4)</DL>
</DD>
</DL>
<HR>
<A NAME="getPrefixLength()"><!-- --></A><H3>
getPrefixLength</H3>
<PRE>
public int <B>getPrefixLength</B>()</PRE>
<DL>
<DD>Gets the length of the length prefix (1, 2, or 4)
<P>
<DD><DL>
<DT><B>Returns:</B><DD>length of the length prefix</DL>
</DD>
</DL>
<HR>
<A NAME="setMaxDataLength(int)"><!-- --></A><H3>
setMaxDataLength</H3>
<PRE>
public void <B>setMaxDataLength</B>(int&nbsp;maxDataLength)</PRE>
<DL>
<DD>Sets the maximum number of bytes allowed for encoding a single String
(including the prefix)
<p>
The encoder will throw a <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang"><CODE>IllegalArgumentException</CODE></A> when more bytes
are needed to encode a String value.
The default value is <A HREF="../../../../../../org/apache/mina/filter/codec/prefixedstring/PrefixedStringEncoder.html#DEFAULT_MAX_DATA_LENGTH"><CODE>DEFAULT_MAX_DATA_LENGTH</CODE></A>.
</p>
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>maxDataLength</CODE> - maximum number of bytes allowed for encoding a single String</DL>
</DD>
</DL>
<HR>
<A NAME="getMaxDataLength()"><!-- --></A><H3>
getMaxDataLength</H3>
<PRE>
public int <B>getMaxDataLength</B>()</PRE>
<DL>
<DD>Gets the maximum number of bytes allowed for encoding a single String *
<P>
<DD><DL>
<DT><B>Returns:</B><DD>maximum number of bytes allowed for encoding a single String (prefix included)</DL>
</DD>
</DL>
<HR>
<A NAME="encode(org.apache.mina.core.session.IoSession, java.lang.Object, org.apache.mina.filter.codec.ProtocolEncoderOutput)"><!-- --></A><H3>
encode</H3>
<PRE>
public void <B>encode</B>(<A HREF="../../../../../../org/apache/mina/core/session/IoSession.html" title="interface in org.apache.mina.core.session">IoSession</A>&nbsp;session,
<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>&nbsp;message,
<A HREF="../../../../../../org/apache/mina/filter/codec/ProtocolEncoderOutput.html" title="interface in org.apache.mina.filter.codec">ProtocolEncoderOutput</A>&nbsp;out)
throws <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</A></PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../../../org/apache/mina/filter/codec/ProtocolEncoder.html#encode(org.apache.mina.core.session.IoSession, java.lang.Object, org.apache.mina.filter.codec.ProtocolEncoderOutput)">ProtocolEncoder</A></CODE></B></DD>
<DD>Encodes higher-level message objects into binary or protocol-specific data.
MINA invokes <A HREF="../../../../../../org/apache/mina/filter/codec/ProtocolEncoder.html#encode(org.apache.mina.core.session.IoSession, java.lang.Object, org.apache.mina.filter.codec.ProtocolEncoderOutput)"><CODE>ProtocolEncoder.encode(IoSession, Object, ProtocolEncoderOutput)</CODE></A>
method with message which is popped from the session write queue, and then
the encoder implementation puts encoded messages (typically <A HREF="../../../../../../org/apache/mina/core/buffer/IoBuffer.html" title="class in org.apache.mina.core.buffer"><CODE>IoBuffer</CODE></A>s)
into <A HREF="../../../../../../org/apache/mina/filter/codec/ProtocolEncoderOutput.html" title="interface in org.apache.mina.filter.codec"><CODE>ProtocolEncoderOutput</CODE></A>.
<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?is-external=true" title="class or interface in java.lang">Exception</A></CODE> - if the message violated protocol specification</DL>
</DD>
</DL>
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