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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 1.4.2_13) on Tue Jun 05 11:36:40 GMT-05:00 2007 --><META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><TITLE>GraphWalker (Geotools 2.3.x 2.3.2 API)</TITLE><META NAME="keywords" CONTENT="org.geotools.graph.traverse.GraphWalker interface"><META NAME="keywords" CONTENT="visit()"><META NAME="keywords" CONTENT="finish()"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="GraphWalker (Geotools 2.3.x 2.3.2 API)";}</SCRIPT></HEAD><BODY BGCOLOR="white" onload="windowTitle();"><!-- ========= 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=3 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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.geotools.graph.traverse</FONT><BR>Interface GraphWalker</H2><DL><DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../../org/geotools/graph/traverse/basic/CountingWalker.html" title="class in org.geotools.graph.traverse.basic">CountingWalker</A>, <A HREF="../../../../org/geotools/graph/util/graph/CycleDetector.html" title="class in org.geotools.graph.util.graph">CycleDetector</A>, <A HREF="../../../../org/geotools/graph/path/DijkstraShortestPathFinder.html" title="class in org.geotools.graph.path">DijkstraShortestPathFinder</A>, <A HREF="../../../../org/geotools/graph/traverse/basic/DummyGraphWalker.html" title="class in org.geotools.graph.traverse.basic">DummyGraphWalker</A>, <A HREF="../../../../org/geotools/graph/util/graph/GraphPartitioner.html" title="class in org.geotools.graph.util.graph">GraphPartitioner</A>, <A HREF="../../../../org/geotools/graph/traverse/basic/SimpleGraphWalker.html" title="class in org.geotools.graph.traverse.basic">SimpleGraphWalker</A></DD></DL><HR><DL><DT>public interface <B>GraphWalker</B></DL><P>Iterated over the components of a graph using a standard visitor pattern.<P><P><DL><DT><B>Author:</B></DT> <DD>Justin Deoliveira, Refractions Research Inc, jdeolive@refractions.net</DD><DT><B>Module:</B></DT><DD><CODE><B>ext/graph</B></CODE> (<A HREF="http://maven.geotools.fr/repository/org/geotools/gt2-graph/"><CODE>gt2-graph.jar</CODE></A>) (<A HREF="http://maven.geotools.fr/reports/graph/index.html">Maven report</A>) (<A HREF="http://svn.geotools.org/geotools/tags/2.3.2/ext/graph/src/org/geotools/graph/traverse/GraphWalker.java">SVN head</A>)</DD></DL><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><!-- ======== CONSTRUCTOR SUMMARY ======== --><!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/geotools/graph/traverse/GraphWalker.html#finish()">finish</A></B>()</CODE><BR> Called when the graph traversal is completed. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/geotools/graph/traverse/GraphWalker.html#visit(org.geotools.graph.structure.Graphable, org.geotools.graph.traverse.GraphTraversal)">visit</A></B>(<A HREF="../../../../org/geotools/graph/structure/Graphable.html" title="interface in org.geotools.graph.structure">Graphable</A> element, <A HREF="../../../../org/geotools/graph/traverse/GraphTraversal.html" title="interface in org.geotools.graph.traverse">GraphTraversal</A> traversal)</CODE><BR> Visits a graph component.</TD></TR></TABLE> <P><!-- ============ FIELD DETAIL =========== --><!-- ========= CONSTRUCTOR DETAIL ======== --><!-- ============ METHOD DETAIL ========== --><A NAME="method_detail"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=1><FONT SIZE="+2"><B>Method Detail</B></FONT></TD></TR></TABLE><A NAME="visit(org.geotools.graph.structure.Graphable, org.geotools.graph.traverse.GraphTraversal)"><!-- --></A><H3>visit</H3><PRE>public int <B>visit</B>(<A HREF="../../../../org/geotools/graph/structure/Graphable.html" title="interface in org.geotools.graph.structure">Graphable</A> element, <A HREF="../../../../org/geotools/graph/traverse/GraphTraversal.html" title="interface in org.geotools.graph.traverse">GraphTraversal</A> traversal)</PRE><DL><DD>Visits a graph component.<P><DD><DL><DT><B>Parameters:</B><DD><CODE>element</CODE> - The component being visited.<DD><CODE>traversal</CODE> - The traversal controlling the sequence of graph component visits.<DT><B>Returns:</B><DD>GraphTraversal#CONTINUE to signal that the traversal should continue.<BR> GraphTraversal#CONTINUE to signal that the traversal should suspend.<BR> GraphTraversal#KILL_BRANCH to signal that the traversal should kill its current branch.<BR> GraphTraversal#STOP to signal that the traversal should stop.<BR><DT><B>See Also:</B><DD><A HREF="../../../../org/geotools/graph/traverse/GraphTraversal.html" title="interface in org.geotools.graph.traverse"><CODE>GraphTraversal</CODE></A>, <A HREF="../../../../org/geotools/graph/traverse/GraphIterator.html" title="interface in org.geotools.graph.traverse"><CODE>GraphIterator</CODE></A></DL></DD></DL><HR><A NAME="finish()"><!-- --></A><H3>finish</H3><PRE>public void <B>finish</B>()</PRE><DL><DD>Called when the graph traversal is completed. Wether this method is called after a traversal has been stopped with a return signal is up to the implementation of GraphTraversal.<P><DD><DL><DT><B>See Also:</B><DD><A HREF="../../../../org/geotools/graph/traverse/GraphTraversal.html" title="interface in org.geotools.graph.traverse"><CODE>GraphTraversal</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=3 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/GraphWalker.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/geotools/graph/traverse/GraphTraversal.html" title="interface in org.geotools.graph.traverse"><B>PREV CLASS</B></A> NEXT CLASS</FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html" target="_top"><B>FRAMES</B></A> <A HREF="GraphWalker.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_bottom"></A><!-- ======== END OF BOTTOM NAVBAR ======= --><HR>Copyright © 1996-2007 <a href="http://www.geotools.org">Geotools</a>. 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