Package org.geotools.data.postgis.filter
Class FilterFunction_pgNearest
Object
ExpressionAbstract
DefaultExpression
FunctionExpressionImpl
FilterFunction_pgNearest
- All Implemented Interfaces:
Expression
,Function
,VolatileFunction
,FunctionExpression
,Factory
NEAREST function implementation for Postgis
Function name: pgNearest
example:
Function name: pgNearest
example:
pgNearest(POINT(16.36 48.205),30)=true
- Author:
- Fernando Mino, Geosolutions
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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
accept, evaluate
Methods inherited from interface Function
getFallbackValue, getFunctionName, getName, getParameters
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Field Details
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NAME
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Constructor Details
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FilterFunction_pgNearest
public FilterFunction_pgNearest()
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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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