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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 11:36:25 GMT-05:00 2007 --><META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><TITLE>CompareFilter (Geotools 2.3.x 2.3.2 API)</TITLE><META NAME="keywords" CONTENT="org.geotools.filter.CompareFilter interface"><META NAME="keywords" CONTENT="addLeftValue()"><META NAME="keywords" CONTENT="addRightValue()"><META NAME="keywords" CONTENT="getLeftValue()"><META NAME="keywords" CONTENT="getRightValue()"><META NAME="keywords" CONTENT="contains()"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="CompareFilter (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 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/CompareFilter.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/filter/BetweenFilter.html" title="interface in org.geotools.filter"><B>PREV CLASS</B></A> <A HREF="../../../org/geotools/filter/EnvironmentVariable.html" title="interface in org.geotools.filter"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html" target="_top"><B>FRAMES</B></A> <A HREF="CompareFilter.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.geotools.filter</FONT><BR>Interface CompareFilter</H2><DL><DT><B>All Superinterfaces:</B> <DD>BinaryComparisonOperator, <A HREF="../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A>, Filter, <A HREF="../../../org/geotools/filter/FilterType.html" title="interface in org.geotools.filter">FilterType</A></DD></DL><DL><DT><B>All Known Subinterfaces:</B> <DD><A HREF="../../../org/geotools/filter/BetweenFilter.html" title="interface in org.geotools.filter">BetweenFilter</A></DD></DL><DL><DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../org/geotools/filter/BetweenFilterImpl.html" title="class in org.geotools.filter">BetweenFilterImpl</A>, <A HREF="../../../org/geotools/filter/CompareFilterImpl.html" title="class in org.geotools.filter">CompareFilterImpl</A>, <A HREF="../../../org/geotools/filter/IsBetweenImpl.html" title="class in org.geotools.filter">IsBetweenImpl</A></DD></DL><HR><B>Deprecated.</B> <I>use <CODE>BinaryComparisonOperator</CODE></I><P><DL><DT>public interface <B>CompareFilter</B><DT>extends <A HREF="../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A>, BinaryComparisonOperator</DL><P>Defines a comparison filter (can be a math comparison or generic equals). This filter implements a comparison - of some sort - between two expressions. The comparison may be a math comparison or a generic equals comparison. If it is a math comparison, only math expressions are allowed; if it is an equals comparison, any expression types are allowed. Note that this comparison does not attempt to restrict its expressions to be meaningful. This means that it considers itself a valid filter as long as the expression comparison returns a valid result. It does no checking to see whether or not the expression comparison is meaningful with regard to checking feature attributes. In other words, this is a valid filter: <b>52 = 92</b>, even though it will always return the same result and could be simplified away. It is up the the filter creator, therefore, to attempt to simplify/make meaningful filter logic.<P><P><DL><DT><B>Author:</B></DT> <DD>Rob Hranac, Vision for New York</DD><DT><B>Module:</B></DT><DD><CODE><B>module/api</B></CODE> (<A HREF="http://maven.geotools.fr/repository/org/geotools/gt2-api/"><CODE>gt2-api.jar</CODE></A>) (<A HREF="http://maven.geotools.fr/reports/api/index.html">Maven report</A>) (<A HREF="http://svn.geotools.org/geotools/tags/2.3.2/module/api/src/org/geotools/filter/CompareFilter.java">SVN head</A>)</DD></DL><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><A NAME="field_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Field Summary</B></FONT></TD></TR></TABLE> <A NAME="fields_inherited_from_class_Filter"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from interface <A HREF="../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../org/geotools/filter/Filter.html#ALL">ALL</A>, <A HREF="../../../org/geotools/filter/Filter.html#NONE">NONE</A></CODE></TD></TR></TABLE> <A NAME="fields_inherited_from_class_FilterType"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from interface <A HREF="../../../org/geotools/filter/FilterType.html" title="interface in org.geotools.filter">FilterType</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../org/geotools/filter/FilterType.html#BETWEEN">BETWEEN</A>, <A HREF="../../../org/geotools/filter/FilterType.html#COMPARE_EQUALS">COMPARE_EQUALS</A>, <A HREF="../../../org/geotools/filter/FilterType.html#COMPARE_GREATER_THAN">COMPARE_GREATER_THAN</A>, <A HREF="../../../org/geotools/filter/FilterType.html#COMPARE_GREATER_THAN_EQUAL">COMPARE_GREATER_THAN_EQUAL</A>, <A HREF="../../../org/geotools/filter/FilterType.html#COMPARE_LESS_THAN">COMPARE_LESS_THAN</A>, <A HREF="../../../org/geotools/filter/FilterType.html#COMPARE_LESS_THAN_EQUAL">COMPARE_LESS_THAN_EQUAL</A>, <A HREF="../../../org/geotools/filter/FilterType.html#COMPARE_NOT_EQUALS">COMPARE_NOT_EQUALS</A>, <A HREF="../../../org/geotools/filter/FilterType.html#FID">FID</A>, <A HREF="../../../org/geotools/filter/FilterType.html#GEOMETRY_BBOX">GEOMETRY_BBOX</A>, <A HREF="../../../org/geotools/filter/FilterType.html#GEOMETRY_BEYOND">GEOMETRY_BEYOND</A>, <A HREF="../../../org/geotools/filter/FilterType.html#GEOMETRY_CONTAINS">GEOMETRY_CONTAINS</A>, <A HREF="../../../org/geotools/filter/FilterType.html#GEOMETRY_CROSSES">GEOMETRY_CROSSES</A>, <A HREF="../../../org/geotools/filter/FilterType.html#GEOMETRY_DISJOINT">GEOMETRY_DISJOINT</A>, <A HREF="../../../org/geotools/filter/FilterType.html#GEOMETRY_DWITHIN">GEOMETRY_DWITHIN</A>, <A HREF="../../../org/geotools/filter/FilterType.html#GEOMETRY_EQUALS">GEOMETRY_EQUALS</A>, <A HREF="../../../org/geotools/filter/FilterType.html#GEOMETRY_INTERSECTS">GEOMETRY_INTERSECTS</A>, <A HREF="../../../org/geotools/filter/FilterType.html#GEOMETRY_OVERLAPS">GEOMETRY_OVERLAPS</A>, <A HREF="../../../org/geotools/filter/FilterType.html#GEOMETRY_TOUCHES">GEOMETRY_TOUCHES</A>, <A HREF="../../../org/geotools/filter/FilterType.html#GEOMETRY_WITHIN">GEOMETRY_WITHIN</A>, <A HREF="../../../org/geotools/filter/FilterType.html#LIKE">LIKE</A>, <A HREF="../../../org/geotools/filter/FilterType.html#LOGIC_AND">LOGIC_AND</A>, <A HREF="../../../org/geotools/filter/FilterType.html#LOGIC_NOT">LOGIC_NOT</A>, <A HREF="../../../org/geotools/filter/FilterType.html#LOGIC_OR">LOGIC_OR</A>, <A HREF="../../../org/geotools/filter/FilterType.html#NULL">NULL</A></CODE></TD></TR></TABLE> <!-- ======== 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/filter/CompareFilter.html#addLeftValue(org.geotools.filter.Expression)">addLeftValue</A></B>(<A HREF="../../../org/geotools/filter/Expression.html" title="interface in org.geotools.filter">Expression</A> leftValue)</CODE><BR> <B>Deprecated.</B> <I>use <CODE>BinaryComparisonOperator#setExpression1(Expression)</CODE></I></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/filter/CompareFilter.html#addRightValue(org.geotools.filter.Expression)">addRightValue</A></B>(<A HREF="../../../org/geotools/filter/Expression.html" title="interface in org.geotools.filter">Expression</A> rightValue)</CODE><BR> <B>Deprecated.</B> <I>use <CODE>BinaryComparisonOperator#setExpression2(Expression)</CODE></I></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="../../../org/geotools/filter/CompareFilter.html#contains(org.geotools.feature.Feature)">contains</A></B>(<A HREF="../../../org/geotools/feature/Feature.html" title="interface in org.geotools.feature">Feature</A> feature)</CODE><BR> <B>Deprecated.</B> <I>use <CODE>org.opengis.filter.Filter#evaluate(Feature)</CODE></I></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../org/geotools/filter/Expression.html" title="interface in org.geotools.filter">Expression</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/geotools/filter/CompareFilter.html#getLeftValue()">getLeftValue</A></B>()</CODE><BR> <B>Deprecated.</B> <I>use <CODE>BinaryComparisonOperator.getExpression1()</CODE></I></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../org/geotools/filter/Expression.html" title="interface in org.geotools.filter">Expression</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/geotools/filter/CompareFilter.html#getRightValue()">getRightValue</A></B>()</CODE><BR>⌨️ 快捷键说明
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