Package org.geotools.filter.function
Class SizeFunction
Object
ExpressionAbstract
DefaultExpression
FunctionExpressionImpl
SizeFunction
- All Implemented Interfaces:
Expression
,Function
,FunctionExpression
,Factory
Return the size of a list (or other collection).
- Author:
- Niels Charlier
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Field Summary
FieldsFields inherited from class FunctionExpressionImpl
fallback, functionName, name, params
Fields inherited from interface Expression
NIL
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Constructor Summary
Constructors -
Method Summary
Methods inherited from class FunctionExpressionImpl
accept, equals, functionName, getExpression, getFallbackValue, getFunctionName, getImplementationHints, getName, getParameters, hashCode, setFallbackValue, setParameters, toString
Methods inherited from class DefaultExpression
isAttributeExpression, isExpression, isFunctionExpression, isGeometryExpression, isLiteralExpression, isMathExpression
Methods inherited from class ExpressionAbstract
evaluate
Methods inherited from interface Expression
evaluate
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Field Details
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NAME
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Constructor Details
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SizeFunction
public SizeFunction()
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Method Details
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evaluate
Description copied from class:ExpressionAbstract
Subclass should override, default implementation returns null.- Specified by:
evaluate
in interfaceExpression
- Overrides:
evaluate
in classFunctionExpressionImpl
- Returns:
- default implementation returns null
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