📄 transition.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc (build 1.6.0_04) on Tue Feb 19 10:50:44 MST 2008 --><META http-equiv="Content-Type" content="text/html; charset=UTF-8"><TITLE>Transition (Apache MINA 2.0.0-M1 API Documentation)</TITLE><META NAME="date" CONTENT="2008-02-19"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ if (location.href.indexOf('is-external=true') == -1) { parent.document.title="Transition (Apache MINA 2.0.0-M1 API Documentation)"; }}</SCRIPT><NOSCRIPT></NOSCRIPT></HEAD><BODY BGCOLOR="white" onload="windowTitle();"><HR><!-- ========= START OF TOP NAVBAR ======= --><A NAME="navbar_top"><!-- --></A><A HREF="#skip-navbar_top" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/Transition.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../../org/apache/mina/statemachine/transition/NoSuchMethodException.html" title="class in org.apache.mina.statemachine.transition"><B>PREV CLASS</B></A> NEXT CLASS</FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../../index.html?org/apache/mina/statemachine/transition/Transition.html" target="_top"><B>FRAMES</B></A> <A HREF="Transition.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT> <A HREF="../../../../../allclasses-noframe.html"><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">org.apache.mina.statemachine.transition</FONT><BR>Interface Transition</H2><DL><DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../../../org/apache/mina/statemachine/transition/AbstractTransition.html" title="class in org.apache.mina.statemachine.transition">AbstractTransition</A>, <A HREF="../../../../../org/apache/mina/statemachine/transition/MethodTransition.html" title="class in org.apache.mina.statemachine.transition">MethodTransition</A>, <A HREF="../../../../../org/apache/mina/statemachine/transition/NoopTransition.html" title="class in org.apache.mina.statemachine.transition">NoopTransition</A></DD></DL><HR><DL><DT><PRE>public interface <B>Transition</B></DL></PRE><P>The interface implemented by classes which need to react on transitions between states.<P><P><DL><DT><B>Version:</B></DT> <DD>$Rev: 586695 $, $Date: 2007-10-20 04:01:17 -0600 (Sat, 20 Oct 2007) $</DD><DT><B>Author:</B></DT> <DD>The Apache MINA Project (dev@mina.apache.org)</DD></DL><HR><P><!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><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> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../../org/apache/mina/statemachine/transition/Transition.html#execute(org.apache.mina.statemachine.event.Event)">execute</A></B>(<A HREF="../../../../../org/apache/mina/statemachine/event/Event.html" title="class in org.apache.mina.statemachine.event">Event</A> event)</CODE><BR> Executes this <A HREF="../../../../../org/apache/mina/statemachine/transition/Transition.html" title="interface in org.apache.mina.statemachine.transition"><CODE>Transition</CODE></A>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../../../org/apache/mina/statemachine/State.html" title="class in org.apache.mina.statemachine">State</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../../org/apache/mina/statemachine/transition/Transition.html#getNextState()">getNextState</A></B>()</CODE><BR> Returns the <A HREF="../../../../../org/apache/mina/statemachine/State.html" title="class in org.apache.mina.statemachine"><CODE>State</CODE></A> which the <A HREF="../../../../../org/apache/mina/statemachine/StateMachine.html" title="class in org.apache.mina.statemachine"><CODE>StateMachine</CODE></A> should move to if this <A HREF="../../../../../org/apache/mina/statemachine/transition/Transition.html" title="interface in org.apache.mina.statemachine.transition"><CODE>Transition</CODE></A> is taken and <A HREF="../../../../../org/apache/mina/statemachine/transition/Transition.html#execute(org.apache.mina.statemachine.event.Event)"><CODE>execute(Event)</CODE></A> returns <code>true</code>.</TD></TR></TABLE> <P><!-- ============ METHOD DETAIL ========== --><A NAME="method_detail"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"><B>Method Detail</B></FONT></TH></TR></TABLE><A NAME="execute(org.apache.mina.statemachine.event.Event)"><!-- --></A><H3>execute</H3><PRE>boolean <B>execute</B>(<A HREF="../../../../../org/apache/mina/statemachine/event/Event.html" title="class in org.apache.mina.statemachine.event">Event</A> event)</PRE><DL><DD>Executes this <A HREF="../../../../../org/apache/mina/statemachine/transition/Transition.html" title="interface in org.apache.mina.statemachine.transition"><CODE>Transition</CODE></A>. It is the responsibility of this <A HREF="../../../../../org/apache/mina/statemachine/transition/Transition.html" title="interface in org.apache.mina.statemachine.transition"><CODE>Transition</CODE></A> to determine whether it actually applies for the specified <A HREF="../../../../../org/apache/mina/statemachine/event/Event.html" title="class in org.apache.mina.statemachine.event"><CODE>Event</CODE></A>. If this <A HREF="../../../../../org/apache/mina/statemachine/transition/Transition.html" title="interface in org.apache.mina.statemachine.transition"><CODE>Transition</CODE></A> doesn't apply nothing should be executed and <code>false</code> must be returned.<P><DD><DL><DT><B>Parameters:</B><DD><CODE>event</CODE> - the current <A HREF="../../../../../org/apache/mina/statemachine/event/Event.html" title="class in org.apache.mina.statemachine.event"><CODE>Event</CODE></A>.<DT><B>Returns:</B><DD><code>true</code> if the <A HREF="../../../../../org/apache/mina/statemachine/transition/Transition.html" title="interface in org.apache.mina.statemachine.transition"><CODE>Transition</CODE></A> was executed, <code>false</code> otherwise.</DL></DD></DL><HR><A NAME="getNextState()"><!-- --></A><H3>getNextState</H3><PRE><A HREF="../../../../../org/apache/mina/statemachine/State.html" title="class in org.apache.mina.statemachine">State</A> <B>getNextState</B>()</PRE><DL><DD>Returns the <A HREF="../../../../../org/apache/mina/statemachine/State.html" title="class in org.apache.mina.statemachine"><CODE>State</CODE></A> which the <A HREF="../../../../../org/apache/mina/statemachine/StateMachine.html" title="class in org.apache.mina.statemachine"><CODE>StateMachine</CODE></A> should move to if this <A HREF="../../../../../org/apache/mina/statemachine/transition/Transition.html" title="interface in org.apache.mina.statemachine.transition"><CODE>Transition</CODE></A> is taken and <A HREF="../../../../../org/apache/mina/statemachine/transition/Transition.html#execute(org.apache.mina.statemachine.event.Event)"><CODE>execute(Event)</CODE></A> returns <code>true</code>.<P><DD><DL><DT><B>Returns:</B><DD>the next <A HREF="../../../../../org/apache/mina/statemachine/State.html" title="class in org.apache.mina.statemachine"><CODE>State</CODE></A> or <code>null</code> if this <A HREF="../../../../../org/apache/mina/statemachine/transition/Transition.html" title="interface in org.apache.mina.statemachine.transition"><CODE>Transition</CODE></A> is a loopback <A HREF="../../../../../org/apache/mina/statemachine/transition/Transition.html" title="interface in org.apache.mina.statemachine.transition"><CODE>Transition</CODE></A>.</DL></DD></DL><!-- ========= END OF CLASS DATA ========= --><HR><!-- ======= START OF BOTTOM NAVBAR ====== --><A NAME="navbar_bottom"><!-- --></A><A HREF="#skip-navbar_bottom" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_bottom_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/Transition.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../../org/apache/mina/statemachine/transition/NoSuchMethodException.html" title="class in org.apache.mina.statemachine.transition"><B>PREV CLASS</B></A> NEXT CLASS</FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../../index.html?org/apache/mina/statemachine/transition/Transition.html" target="_top"><B>FRAMES</B></A> <A HREF="Transition.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../../../allclasses-noframe.html"><B>All Classes</B></A>'); 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