Package org.geotools.filter.function
Class BandsFunction
Object
ExpressionAbstract
DefaultExpression
FunctionExpressionImpl
BandsFunction
- All Implemented Interfaces:
Expression
,Function
,FunctionExpression
,Factory
Return the number of bands of the evaluation context, which is supposed to be a coverage, or an object that can be
converted to on.
-
Field Summary
FieldsFields inherited from class FunctionExpressionImpl
fallback, functionName, name, params
Fields inherited from interface Expression
NIL
-
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
-
Field Details
-
NAME
-
-
Constructor Details
-
BandsFunction
public BandsFunction()
-
-
Method Details
-
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
-