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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 12:57:45 EDT 2007 --><TITLE>TermConstant</TITLE><META NAME="keywords" CONTENT="JSHOP2.TermConstant class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="TermConstant";}</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 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======== --><H2><FONT SIZE="-1">JSHOP2</FONT><BR>Class TermConstant</H2><PRE>java.lang.Object <IMG SRC="../resources/inherit.gif" ALT="extended by "><A HREF="../JSHOP2/CompileTimeObject.html" title="class in JSHOP2">JSHOP2.CompileTimeObject</A> <IMG SRC="../resources/inherit.gif" ALT="extended by "><A HREF="../JSHOP2/Term.html" title="class in JSHOP2">JSHOP2.Term</A> <IMG SRC="../resources/inherit.gif" ALT="extended by "><B>JSHOP2.TermConstant</B></PRE><HR><DL><DT><PRE>public class <B>TermConstant</B><DT>extends <A HREF="../JSHOP2/Term.html" title="class in JSHOP2">Term</A></DL></PRE><P>Each constant symbol, both at compile time and at run time, is an instance of this class.<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>private static <A HREF="../JSHOP2/TermConstant.html" title="class in JSHOP2">TermConstant</A>[]</CODE></FONT></TD><TD><CODE><B><A HREF="../JSHOP2/TermConstant.html#constants">constants</A></B></CODE><BR> To represent the constant symbols that we already know exist, so that there will be no duplicate copies of those symbols.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>private int</CODE></FONT></TD><TD><CODE><B><A HREF="../JSHOP2/TermConstant.html#index">index</A></B></CODE><BR> Constant symbols are mapped to integers at compile time, and these integers are used thereafter to represent the constant symbols.</TD></TR></TABLE> <A NAME="fields_inherited_from_class_JSHOP2.CompileTimeObject"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TH ALIGN="left"><B>Fields inherited from class JSHOP2.<A HREF="../JSHOP2/CompileTimeObject.html" title="class in JSHOP2">CompileTimeObject</A></B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../JSHOP2/CompileTimeObject.html#endl">endl</A></CODE></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/TermConstant.html#TermConstant(int)">TermConstant</A></B>(int indexIn)</CODE><BR> To initialize this constant symbol.</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><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../JSHOP2/Term.html" title="class in JSHOP2">Term</A></CODE></FONT></TD><TD><CODE><B><A HREF="../JSHOP2/TermConstant.html#bind(JSHOP2.Term[])">bind</A></B>(<A HREF="../JSHOP2/Term.html" title="class in JSHOP2">Term</A>[] binding)</CODE><BR> Since this term is a constant symbol, binding will not change it, therefore, simply this constant symbol itself is returned.</TD></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="../JSHOP2/TermConstant.html#equals(JSHOP2.Term)">equals</A></B>(<A HREF="../JSHOP2/Term.html" title="class in JSHOP2">Term</A> t)</CODE><BR> Whether or not another term is equivalent to this constant symbol.</TD></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="../JSHOP2/TermConstant.html#findUnifier(JSHOP2.Term, JSHOP2.Term[])">findUnifier</A></B>(<A HREF="../JSHOP2/Term.html" title="class in JSHOP2">Term</A> t, <A HREF="../JSHOP2/Term.html" title="class in JSHOP2">Term</A>[] binding)</CODE><BR> Find a unifier between this constant symbol and another given term.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../JSHOP2/TermConstant.html" title="class in JSHOP2">TermConstant</A></CODE></FONT></TD><TD><CODE><B><A HREF="../JSHOP2/TermConstant.html#getConstant(int)">getConstant</A></B>(int index)</CODE><BR> To return the correponding existing constant symbol.</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="../JSHOP2/TermConstant.html#getIndex()">getIndex</A></B>()</CODE><BR> To get the index for this constant symbol.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static void</CODE></FONT></TD><TD><CODE><B><A HREF="../JSHOP2/TermConstant.html#initialize(int)">initialize</A></B>(int size)</CODE><BR> To initialize an array of constant symbols that we already know exist, so that there will be no duplicate copies of those symbols.</TD></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="../JSHOP2/TermConstant.html#isGround()">isGround</A></B>()</CODE><BR> This function always returns <code>true</code> because a constant symbol is always ground by definition.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../JSHOP2/TermConstant.html#toCode()">toCode</A></B>()</CODE><BR> This function produces Java code to create this constant symbol as a term.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../JSHOP2/TermConstant.html#toString()">toString</A></B>()</CODE><BR> Constant symbols are mapped at compile time to integers, this function, for printing purposes, maps them back to the strings they were before.</TD></TR></TABLE> <A NAME="methods_inherited_from_class_JSHOP2.Term"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TH ALIGN="left"><B>Methods inherited from class JSHOP2.<A HREF="../JSHOP2/Term.html" title="class in JSHOP2">Term</A></B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../JSHOP2/Term.html#isNil()">isNil</A>, <A HREF="../JSHOP2/Term.html#merge(JSHOP2.Term[][], int)">merge</A>, <A HREF="../JSHOP2/Term.html#merge(JSHOP2.Term[], JSHOP2.Term[])">merge</A>, <A HREF="../JSHOP2/Term.html#print()">print</A></CODE></TD></TR></TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</CODE></TD></TR></TABLE> <P><!-- ============ FIELD DETAIL =========== --><A NAME="field_detail"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR 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