classificationfunction.html

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<A NAME="getExpression()"><!-- --></A><H3>
getExpression</H3>
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public <A HREF="../../../../org/geotools/filter/Expression.html" title="interface in org.geotools.filter">Expression</A> <B>getExpression</B>()</PRE>
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<A NAME="setExpression(org.geotools.filter.Expression)"><!-- --></A><H3>
setExpression</H3>
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public void <B>setExpression</B>(<A HREF="../../../../org/geotools/filter/Expression.html" title="interface in org.geotools.filter">Expression</A>&nbsp;e)</PRE>
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<A NAME="getProgressListener()"><!-- --></A><H3>
getProgressListener</H3>
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public <A HREF="../../../../org/geotools/util/ProgressListener.html" title="interface in org.geotools.util">ProgressListener</A> <B>getProgressListener</B>()</PRE>
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<A NAME="setProgressListener(org.geotools.util.ProgressListener)"><!-- --></A><H3>
setProgressListener</H3>
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public void <B>setProgressListener</B>(<A HREF="../../../../org/geotools/util/ProgressListener.html" title="interface in org.geotools.util">ProgressListener</A>&nbsp;progress)</PRE>
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<A NAME="getArgs()"><!-- --></A><H3>
getArgs</H3>
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public <A HREF="../../../../org/geotools/filter/Expression.html" title="interface in org.geotools.filter">Expression</A>[] <B>getArgs</B>()</PRE>
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<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/geotools/filter/FunctionExpression.html" title="interface in org.geotools.filter">FunctionExpression</A></CODE></B></DD>
<DD>Gets the arguments to be evaluated by this function.
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<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/filter/FunctionExpression.html#getArgs()">getArgs</A></CODE> in interface <CODE><A HREF="../../../../org/geotools/filter/FunctionExpression.html" title="interface in org.geotools.filter">FunctionExpression</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/geotools/filter/FunctionExpressionImpl.html#getArgs()">getArgs</A></CODE> in class <CODE><A HREF="../../../../org/geotools/filter/FunctionExpressionImpl.html" title="class in org.geotools.filter">FunctionExpressionImpl</A></CODE></DL>
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<A NAME="getName()"><!-- --></A><H3>
getName</H3>
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public abstract <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>getName</B>()</PRE>
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<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/geotools/filter/FunctionExpression.html" title="interface in org.geotools.filter">FunctionExpression</A></CODE></B></DD>
<DD>Gets the name of this function.
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<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/filter/FunctionExpression.html#getName()">getName</A></CODE> in interface <CODE><A HREF="../../../../org/geotools/filter/FunctionExpression.html" title="interface in org.geotools.filter">FunctionExpression</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/geotools/filter/FunctionExpressionImpl.html#getName()">getName</A></CODE> in class <CODE><A HREF="../../../../org/geotools/filter/FunctionExpressionImpl.html" title="class in org.geotools.filter">FunctionExpressionImpl</A></CODE></DL>
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<DT><B>Returns:</B><DD>the name of the function.</DL>
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<A NAME="setArgs(org.geotools.filter.Expression[])"><!-- --></A><H3>
setArgs</H3>
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public void <B>setArgs</B>(<A HREF="../../../../org/geotools/filter/Expression.html" title="interface in org.geotools.filter">Expression</A>[]&nbsp;args)</PRE>
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<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/geotools/filter/FunctionExpression.html" title="interface in org.geotools.filter">FunctionExpression</A></CODE></B></DD>
<DD>Sets the arguments to be evaluated by this function.
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<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/filter/FunctionExpression.html#setArgs(org.geotools.filter.Expression[])">setArgs</A></CODE> in interface <CODE><A HREF="../../../../org/geotools/filter/FunctionExpression.html" title="interface in org.geotools.filter">FunctionExpression</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/geotools/filter/FunctionExpressionImpl.html#setArgs(org.geotools.filter.Expression[])">setArgs</A></CODE> in class <CODE><A HREF="../../../../org/geotools/filter/FunctionExpressionImpl.html" title="class in org.geotools.filter">FunctionExpressionImpl</A></CODE></DL>
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<A NAME="evaluate(org.geotools.feature.Feature)"><!-- --></A><H3>
evaluate</H3>
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public abstract <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>evaluate</B>(<A HREF="../../../../org/geotools/feature/Feature.html" title="interface in org.geotools.feature">Feature</A>&nbsp;feature)</PRE>
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<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/geotools/filter/Expression.html" title="interface in org.geotools.filter">Expression</A></CODE></B></DD>
<DD>Evaluates the expression against an instance of <A HREF="../../../../org/geotools/feature/Feature.html" title="interface in org.geotools.feature"><CODE>Feature</CODE></A>.
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<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/geotools/filter/Expression.html#evaluate(org.geotools.feature.Feature)">evaluate</A></CODE> in interface <CODE><A HREF="../../../../org/geotools/filter/Expression.html" title="interface in org.geotools.filter">Expression</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/geotools/filter/DefaultExpression.html#evaluate(org.geotools.feature.Feature)">evaluate</A></CODE> in class <CODE><A HREF="../../../../org/geotools/filter/DefaultExpression.html" title="class in org.geotools.filter">DefaultExpression</A></CODE></DL>
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<DT><B>Parameters:</B><DD><CODE>feature</CODE> - Specified feature to use when returning value.
<DT><B>Returns:</B><DD>The value of this expression based on the feature.</DL>
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<A NAME="getValue(int)"><!-- --></A><H3>
getValue</H3>
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public <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>getValue</B>(int&nbsp;index)</PRE>
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<A NAME="decimalPlaces(double)"><!-- --></A><H3>
decimalPlaces</H3>
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protected int <B>decimalPlaces</B>(double&nbsp;slotWidth)</PRE>
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<DD>Determines the number of decimal places to truncate the interval at
 (public for testing purposes only).
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<DT><B>Parameters:</B><DD><CODE>slotWidth</CODE> - </DL>
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<A NAME="round(double, int)"><!-- --></A><H3>
round</H3>
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protected double <B>round</B>(double&nbsp;value,
                       int&nbsp;decimalPlaces)</PRE>
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<DD>Truncates a double to a certain number of decimals places. Note:
 truncation at zero decimal places will still show up as x.0, since we're
 using the double type.
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<DT><B>Parameters:</B><DD><CODE>value</CODE> - number to round-off<DD><CODE>decimalPlaces</CODE> - number of decimal places to leave
<DT><B>Returns:</B><DD>the rounded value</DL>
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<A NAME="fixRound(double, int, boolean)"><!-- --></A><H3>
fixRound</H3>
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protected double <B>fixRound</B>(double&nbsp;value,
                          int&nbsp;decimalPlaces,
                          boolean&nbsp;up)</PRE>
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<DD>Corrects a round off operation by incrementing or decrementing the
 decimal place (preferably the smallest one).  This should usually be used to adjust the bounds to include a value.  Example: 0.31-->0.44 where 0.44 is the maximum value and end of the range.  We could just make the , round(0.31, 1)=0.3; round(0.44 max value = 0.49
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<DT><B>Parameters:</B><DD><CODE>value</CODE> - <DD><CODE>decimalPlaces</CODE> - <DD><CODE>up</CODE> - </DL>
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