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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 1.5.0_07) on Tue Oct 16 12:57:42 EDT 2007 --><TITLE>InternalVars</TITLE><META NAME="keywords" CONTENT="JSHOP2.InternalVars class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="InternalVars";}</SCRIPT><NOSCRIPT></NOSCRIPT></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=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="../JSHOP2/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="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="../JSHOP2/InternalOperator.html" title="class in JSHOP2"><B>PREV CLASS</B></A> <A HREF="../JSHOP2/JSHOP2.html" title="class in JSHOP2"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../index.html?JSHOP2/InternalVars.html" target="_top"><B>FRAMES</B></A> <A HREF="InternalVars.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 | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#methods_inherited_from_class_java.lang.Object">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: <A HREF="#field_detail">FIELD</A> | <A HREF="#constructor_detail">CONSTR</A> | METHOD</FONT></TD></TR></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">JSHOP2</FONT><BR>Class InternalVars</H2><PRE>java.lang.Object <IMG SRC="../resources/inherit.gif" ALT="extended by "><B>JSHOP2.InternalVars</B></PRE><HR><DL><DT><PRE> class <B>InternalVars</B><DT>extends java.lang.Object</DL></PRE><P>This class represents all the variables that JSHOP2 needs every time it calls itself recursively. The reason all these variables are bundled together in one class rather than having them locally defined is to save stack space. Right now, the only thing that is stored in the stack is a pointer to this class in each recursion, and the actual data is stored in heap memory, while if these variables were just locally defined, all of them would be stored in the stack, resulting in very fast stack overflow errors.<P><P><DL><DT><B>Version:</B></DT> <DD>1.0.3</DD><DT><B>Author:</B></DT> <DD>Okhtay Ilghami, <a href="http://www.cs.umd.edu/~okhtay">http://www.cs.umd.edu/~okhtay</a></DD></DL><HR><P><!-- =========== FIELD SUMMARY =========== --><A NAME="field_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>Field Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>(package private) <A HREF="../JSHOP2/Term.html" title="class in JSHOP2">Term</A>[]</CODE></FONT></TD><TD><CODE><B><A HREF="../JSHOP2/InternalVars.html#binding">binding</A></B></CODE><BR> The binding that unifies the head of a method or an operator with the task being achieved.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>(package private) java.util.Vector[]</CODE></FONT></TD><TD><CODE><B><A HREF="../JSHOP2/InternalVars.html#delAdd">delAdd</A></B></CODE><BR> An array of size 4 to store the atoms and protections that are being deleted or added to the current state of the world as a result of application of an operator, to be used in case of a backtrack over that operator.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>(package private) java.util.Iterator<<A HREF="../JSHOP2/TaskList.html" title="class in JSHOP2">TaskList</A>></CODE></FONT></TD><TD><CODE><B><A HREF="../JSHOP2/InternalVars.html#e">e</A></B></CODE><BR> The iterator iterating over the <code>LinkedList</code> of the tasks that we have the option to achieve right now.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>(package private) boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../JSHOP2/InternalVars.html#found">found</A></B></CODE><BR> Whether or not at least one satisfier has been found for the current branch of the current method.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>(package private) int</CODE></FONT></TD><TD><CODE><B><A HREF="../JSHOP2/InternalVars.html#j">j</A></B></CODE><BR> The index of the method or operator being considered.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>(package private) int</CODE></FONT></TD><TD><CODE><B><A HREF="../JSHOP2/InternalVars.html#k">k</A></B></CODE><BR> The index of the branch of the current method being considered.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>(package private) <A HREF="../JSHOP2/Method.html" title="class in JSHOP2">Method</A>[]</CODE></FONT></TD><TD><CODE><B><A HREF="../JSHOP2/InternalVars.html#m">m</A></B></CODE><BR> An array of methods that can achieve the compound task being considered.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>(package private) <A HREF="../JSHOP2/Term.html" title="class in JSHOP2">Term</A>[]</CODE></FONT></TD><TD><CODE><B><A HREF="../JSHOP2/InternalVars.html#nextB">nextB</A></B></CODE><BR> Next binding that satisfies the precondition of the current method or operator.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>(package private) <A HREF="../JSHOP2/Operator.html" title="class in JSHOP2">Operator</A>[]</CODE></FONT></TD><TD><CODE><B><A HREF="../JSHOP2/InternalVars.html#o">o</A></B></CODE><BR> An array of operators that can achieve the primitive task being considered.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>(package private) <A HREF="../JSHOP2/Precondition.html" title="class in JSHOP2">Precondition</A></CODE></FONT></TD><TD><CODE><B><A HREF="../JSHOP2/InternalVars.html#p">p</A></B></CODE><BR> An iterator over the bindings that can satisfy the precondition of the current method or operator.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>(package private) <A HREF="../JSHOP2/TaskAtom.html" title="class in JSHOP2">TaskAtom</A></CODE></FONT></TD><TD><CODE><B><A HREF="../JSHOP2/InternalVars.html#t">t</A></B></CODE><BR> The task atom chosen to be achieved next.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>(package private) java.util.LinkedList<<A HREF="../JSHOP2/TaskList.html" title="class in JSHOP2">TaskList</A>></CODE></FONT></TD><TD><CODE><B><A HREF="../JSHOP2/InternalVars.html#t0">t0</A></B></CODE><BR> A <code>LinkedList</code> of the task atoms we have the option to achieve right now.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>(package private) <A HREF="../JSHOP2/TaskList.html" title="class in JSHOP2">TaskList</A></CODE></FONT></TD><TD><CODE><B><A HREF="../JSHOP2/InternalVars.html#tl">tl</A></B></CODE><BR> The atomic task list that represents, in the task network, the task atom that has been chosen to be achieved next.</TD></TR></TABLE> <!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_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>Constructor Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../JSHOP2/InternalVars.html#InternalVars()">InternalVars</A></B>()</CODE><BR> </TD></TR></TABLE> <!-- ========== 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></TABLE>⌨️ 快捷键说明
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