literalexpressionimpl.html

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<DT><B>Returns:</B><DD>the short representation of the expression type.</DL>
</DD>
</DL>
<HR>

<A NAME="setLiteral(java.lang.Object)"><!-- --></A><H3>
setLiteral</H3>
<PRE>
public final void <B>setLiteral</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;literal)
                      throws <A HREF="../../../org/geotools/filter/IllegalFilterException.html" title="class in org.geotools.filter">IllegalFilterException</A></PRE>
<DL>
<DD><B>Deprecated.</B>&nbsp;<I>use <A HREF="../../../org/geotools/filter/LiteralExpressionImpl.html#setValue(java.lang.Object)"><CODE>setValue(Object)</CODE></A>.</I>
<P>
<DD>This method calls <A HREF="../../../org/geotools/filter/LiteralExpressionImpl.html#setValue(java.lang.Object)"><CODE>setValue(Object)</CODE></A>.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/geotools/filter/LiteralExpression.html#setLiteral(java.lang.Object)">setLiteral</A></CODE> in interface <CODE><A HREF="../../../org/geotools/filter/LiteralExpression.html" title="interface in org.geotools.filter">LiteralExpression</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>literal</CODE> - The literal to store inside this expression.
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../org/geotools/filter/IllegalFilterException.html" title="class in org.geotools.filter">IllegalFilterException</A></CODE> - This literal type is not in scope.</DL>
</DD>
</DL>
<HR>

<A NAME="getLiteral()"><!-- --></A><H3>
getLiteral</H3>
<PRE>
public final <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>getLiteral</B>()</PRE>
<DL>
<DD><B>Deprecated.</B>&nbsp;<I>use <A HREF="../../../org/geotools/filter/LiteralExpressionImpl.html#getValue()"><CODE>getValue()</CODE></A>.</I>
<P>
<DD>This method calls <A HREF="../../../org/geotools/filter/LiteralExpressionImpl.html#getValue()"><CODE>getValue()</CODE></A>.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/geotools/filter/LiteralExpression.html#getLiteral()">getLiteral</A></CODE> in interface <CODE><A HREF="../../../org/geotools/filter/LiteralExpression.html" title="interface in org.geotools.filter">LiteralExpression</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the literal held by this expression.</DL>
</DD>
</DL>
<HR>

<A NAME="getValue()"><!-- --></A><H3>
getValue</H3>
<PRE>
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>()</PRE>
<DL>
<DD>Retrieves the literal of this expression.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>getValue</CODE> in interface <CODE>Literal</CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the literal held by this expression.</DL>
</DD>
</DL>
<HR>

<A NAME="setValue(java.lang.Object)"><!-- --></A><H3>
setValue</H3>
<PRE>
public final void <B>setValue</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;literal)</PRE>
<DL>
<DD>Sets the literal.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>literal</CODE> - The literal to store inside this expression.
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../org/geotools/filter/IllegalFilterException.html" title="class in org.geotools.filter">IllegalFilterException</A></CODE> - This literal type is not in scope.</DL>
</DD>
</DL>
<HR>

<A NAME="evaluate(org.geotools.feature.Feature)"><!-- --></A><H3>
evaluate</H3>
<PRE>
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>evaluate</B>(<A HREF="../../../org/geotools/feature/Feature.html" title="interface in org.geotools.feature">Feature</A>&nbsp;feature)
                throws <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/IllegalArgumentException.html" title="class or interface in java.lang">IllegalArgumentException</A></PRE>
<DL>
<DD>Gets the value of this literal.
<P>
<DD><DL>
<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>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>feature</CODE> - Required by the interface but not used.
<DT><B>Returns:</B><DD>the literal held by this expression.  Ignores the passed in
         feature.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/IllegalArgumentException.html" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - Feature does not match declared schema.</DL>
</DD>
</DL>
<HR>

<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public <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>toString</B>()</PRE>
<DL>
<DD>Return this filter as a string.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>String representation of this geometry filter.</DL>
</DD>
</DL>
<HR>

<A NAME="equals(java.lang.Object)"><!-- --></A><H3>
equals</H3>
<PRE>
public boolean <B>equals</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)</PRE>
<DL>
<DD>Compares this filter to the specified object.  Returns true  if the
 passed in object is the same as this expression.  Checks  to make sure
 the expression types are the same as well as the literals.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>obj</CODE> - - the object to compare this ExpressionLiteral against.
<DT><B>Returns:</B><DD>true if specified object is equal to this expression; false
         otherwise.<DT><B>'TODO:'</B></DT>
  <DD>REVISIT: missmatched types now considered not equal. This may be a
       problem when comparing Doubles and Integers</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="hashCode()"><!-- --></A><H3>
hashCode</H3>
<PRE>
public int <B>hashCode</B>()</PRE>
<DL>
<DD>Override of hashCode method.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the hash code for this literal expression</DL>
</DD>
</DL>
<HR>

<A NAME="accept(org.opengis.filter.expression.ExpressionVisitor, java.lang.Object)"><!-- --></A><H3>
accept</H3>
<PRE>
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>accept</B>(ExpressionVisitor&nbsp;visitor,
                     <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)</PRE>
<DL>
<DD>Used by FilterVisitors to perform some action on this filter instance.
 Typicaly used by Filter decoders, but may also be used by any thing
 which needs infomration from filter structure. Implementations should
 always call: visitor.visit(this); It is importatant that this is not
 left to a parent class unless the parents API is identical.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>accept</CODE> in interface <CODE>Expression</CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../org/geotools/filter/expression/ExpressionAbstract.html#accept(org.opengis.filter.expression.ExpressionVisitor, java.lang.Object)">accept</A></CODE> in class <CODE><A HREF="../../../org/geotools/filter/expression/ExpressionAbstract.html" title="class in org.geotools.filter.expression">ExpressionAbstract</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>visitor</CODE> - The visitor which requires access to this filter, the
        method must call visitor.visit(this);</DL>
</DD>
</DL>
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