Package org.geotools.filter.function
Class AbstractQuantityClassificationFunction
Object
ExpressionAbstract
DefaultExpression
ClassificationFunction
AbstractQuantityClassificationFunction
- All Implemented Interfaces:
Expression
,Function
,FunctionExpression
,Factory
- Direct Known Subclasses:
EqualAreaFunction
,QuantileFunction
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Field Summary
Fields inherited from class ClassificationFunction
LOGGER
Fields inherited from interface Expression
NIL
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionSubclass should override, default implementation returns null.protected abstract FeatureCalc
Returns the list visitor for the specific implementation of "quantity" (e.g., count, area, ...).protected abstract boolean
Methods inherited from class ClassificationFunction
accept, computeGroupByPercentages, computePercentage, decimalPlaces, fixRound, getClasses, getFallbackValue, getFunctionName, getImplementationHints, getName, getParameters, getProgressListener, round, setClasses, setFallbackValue, setParameters, setProgressListener, toString
Methods inherited from class DefaultExpression
isAttributeExpression, isExpression, isFunctionExpression, isGeometryExpression, isLiteralExpression, isMathExpression
Methods inherited from class ExpressionAbstract
evaluate
Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Methods inherited from interface Expression
evaluate
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Constructor Details
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AbstractQuantityClassificationFunction
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Method Details
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getListVisitor
Returns the list visitor for the specific implementation of "quantity" (e.g., count, area, ...). The visitor must return a "bins" structure matching {code}List[]{code}, where each array entry is a bin, and values inside the bin are sorted from lowest to highest -
evaluate
Description copied from class:ExpressionAbstract
Subclass should override, default implementation returns null.- Specified by:
evaluate
in interfaceExpression
- Specified by:
evaluate
in classClassificationFunction
- Returns:
- default implementation returns null
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percentages
protected abstract boolean percentages()- Returns:
- true if percentages computation is enabled, false if not
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