attributeexpressionimpl.html

Geotools是一个开源的Java GIS工具包,可利用它来开发符合标准的地理信息系统。Geotools提供了OGC(Open Geospatial Consortium)规范的一个实现来作为他们的

       <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>&nbsp;extraData)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Used by FilterVisitors to perform some action on this filter instance.
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<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/filter/AttributeExpressionImpl.html#equals(java.lang.Object)">equals</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>&nbsp;obj)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Compares this filter to the specified object.  </TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/filter/AttributeExpressionImpl.html#evaluate(org.geotools.feature.Feature)">evaluate</A></B>(<A HREF="../../../org/geotools/feature/Feature.html" title="interface in org.geotools.feature">Feature</A>&nbsp;feature)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gets the value of this attribute from the passed feature.</TD>
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<CODE>&nbsp;<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/filter/AttributeExpressionImpl.html#getAttributePath()">getAttributePath</A></B>()</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;<I>use <A HREF="../../../org/geotools/filter/AttributeExpressionImpl.html#getPropertyName()"><CODE>getPropertyName()</CODE></A></I></TD>
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<CODE>&nbsp;<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/filter/AttributeExpressionImpl.html#getPropertyName()">getPropertyName</A></B>()</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gets the path to the attribute to be evaluated by this expression.

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<CODE>&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/filter/AttributeExpressionImpl.html#hashCode()">hashCode</A></B>()</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Override of hashCode method.</TD>
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<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/filter/AttributeExpressionImpl.html#setAttributePath(java.lang.String)">setAttributePath</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;attPath)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;<I>use <A HREF="../../../org/geotools/filter/AttributeExpressionImpl.html#setPropertyName(java.lang.String)"><CODE>setPropertyName(String)</CODE></A></I></TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/filter/AttributeExpressionImpl.html#setPropertyName(java.lang.String)">setPropertyName</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;attPath)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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<CODE>&nbsp;<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/filter/AttributeExpressionImpl.html#toString()">toString</A></B>()</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return this expression as a string.</TD>
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&nbsp;<A NAME="methods_inherited_from_class_DefaultExpression"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TD><B>Methods inherited from class <A HREF="../../../org/geotools/filter/DefaultExpression.html" title="class in org.geotools.filter">DefaultExpression</A></B></TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../org/geotools/filter/DefaultExpression.html#accept(org.geotools.filter.FilterVisitor)">accept</A>, <A HREF="../../../org/geotools/filter/DefaultExpression.html#evaluate(java.lang.Object)">evaluate</A>, <A HREF="../../../org/geotools/filter/DefaultExpression.html#getType()">getType</A>, <A HREF="../../../org/geotools/filter/DefaultExpression.html#getValue(org.geotools.feature.Feature)">getValue</A>, <A HREF="../../../org/geotools/filter/DefaultExpression.html#isAttributeExpression(short)">isAttributeExpression</A>, <A HREF="../../../org/geotools/filter/DefaultExpression.html#isExpression(short)">isExpression</A>, <A HREF="../../../org/geotools/filter/DefaultExpression.html#isFunctionExpression(short)">isFunctionExpression</A>, <A HREF="../../../org/geotools/filter/DefaultExpression.html#isGeometryExpression(short)">isGeometryExpression</A>, <A HREF="../../../org/geotools/filter/DefaultExpression.html#isLiteralExpression(short)">isLiteralExpression</A>, <A HREF="../../../org/geotools/filter/DefaultExpression.html#isMathExpression(org.opengis.filter.expression.Expression)">isMathExpression</A>, <A HREF="../../../org/geotools/filter/DefaultExpression.html#isMathExpression(short)">isMathExpression</A></CODE></TD>
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&nbsp;<A NAME="methods_inherited_from_class_ExpressionAbstract"><!-- --></A>
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<TD><B>Methods inherited from class <A HREF="../../../org/geotools/filter/expression/ExpressionAbstract.html" title="class in org.geotools.filter.expression">ExpressionAbstract</A></B></TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../org/geotools/filter/expression/ExpressionAbstract.html#eval(org.geotools.filter.Expression, org.geotools.feature.Feature)">eval</A></CODE></TD>
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&nbsp;<A NAME="methods_inherited_from_class_Object"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TD><B>Methods inherited from class <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></B></TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD>
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&nbsp;<A NAME="methods_inherited_from_class_AttributeExpression"><!-- --></A>
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<TD><B>Methods inherited from interface <A HREF="../../../org/geotools/filter/AttributeExpression.html" title="interface in org.geotools.filter">AttributeExpression</A></B></TD>
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<TD><CODE><A HREF="../../../org/geotools/filter/AttributeExpression.html#getValue(org.geotools.feature.Feature)">getValue</A></CODE></TD>
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&nbsp;<A NAME="methods_inherited_from_class_Expression"><!-- --></A>
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<TD><B>Methods inherited from interface <A HREF="../../../org/geotools/filter/Expression.html" title="interface in org.geotools.filter">Expression</A></B></TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../org/geotools/filter/Expression.html#accept(org.geotools.filter.FilterVisitor)">accept</A>, <A HREF="../../../org/geotools/filter/Expression.html#getType()">getType</A></CODE></TD>
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&nbsp;<A NAME="methods_inherited_from_class_Expression"><!-- --></A>
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<TD><B>Methods inherited from interface Expression</B></TD>
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<TD><CODE>evaluate</CODE></TD>
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<!-- ============ FIELD DETAIL =========== -->

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<B>Field Detail</B></FONT></TD>
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<A NAME="attPath"><!-- --></A><H3>
attPath</H3>
<PRE>
protected <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>attPath</B></PRE>
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<DD>Holds all sub filters of this filter.
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<DL>
</DL>
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<A NAME="schema"><!-- --></A><H3>
schema</H3>
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protected <A HREF="../../../org/geotools/feature/FeatureType.html" title="interface in org.geotools.feature">FeatureType</A> <B>schema</B></PRE>
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<DD>Holds all sub filters of this filter.
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<DL>
</DL>
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<!-- ========= CONSTRUCTOR DETAIL ======== -->

<A NAME="constructor_detail"><!-- --></A>
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<B>Constructor Detail</B></FONT></TD>
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<A NAME="AttributeExpressionImpl(org.geotools.feature.FeatureType)"><!-- --></A><H3>
AttributeExpressionImpl</H3>
<PRE>
protected <B>AttributeExpressionImpl</B>(<A HREF="../../../org/geotools/feature/FeatureType.html" title="interface in org.geotools.feature">FeatureType</A>&nbsp;schema)</PRE>
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<DD>Constructor with the schema for this attribute.
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<DT><B>Parameters:</B><DD><CODE>schema</CODE> - The schema for this attribute.</DL>
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<A NAME="AttributeExpressionImpl(java.lang.String)"><!-- --></A><H3>
AttributeExpressionImpl</H3>
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protected <B>AttributeExpressionImpl</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;xpath)</PRE>
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<DD>Constructor with schema and path to the attribute.
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<DT><B>Parameters:</B><DD><CODE>xpath</CODE> - the String xpath to the attribute.</DL>
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<A NAME="AttributeExpressionImpl(org.geotools.feature.FeatureType, java.lang.String)"><!-- --></A><H3>
AttributeExpressionImpl</H3>
<PRE>
protected <B>AttributeExpressionImpl</B>(<A HREF="../../../org/geotools/feature/FeatureType.html" title="interface in org.geotools.feature">FeatureType</A>&nbsp;schema,
                                  <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;attPath)
                           throws <A HREF="../../../org/geotools/filter/IllegalFilterException.html" title="class in org.geotools.filter">IllegalFilterException</A></PRE>
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<DD>Constructor with schema and path to the attribute.
<P>
<DT><B>Parameters:</B><DD><CODE>schema</CODE> - The initial (required) sub filter.<DD><CODE>attPath</CODE> - the xpath to the attribute.
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../org/geotools/filter/IllegalFilterException.html" title="class in org.geotools.filter">IllegalFilterException</A></CODE> - If the attribute path is not in the
         schema.</DL>

<!-- ============ METHOD DETAIL ========== -->

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<A NAME="setAttributePath(java.lang.String)"><!-- --></A><H3>
setAttributePath</H3>
<PRE>
public final void <B>setAttributePath</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;attPath)
                            throws <A HREF="../../../org/geotools/filter/IllegalFilterException.html" title="class in org.geotools.filter">IllegalFilterException</A></PRE>
<DL>