org.geotools.filter.function
Class FilterFunction_distance

Object
  ExpressionAbstract
      DefaultExpression
          FunctionExpressionImpl
              FilterFunction_distance

All Implemented Interfaces:

Factory, ExpressionType, FunctionExpression, Expression, Function

public class FilterFunction_distance
extends FunctionExpressionImpl

Field Summary

static FunctionName

NAME

Fields inherited from class FunctionExpressionImpl

fallback, functionName, name, params

Fields inherited from class DefaultExpression

expressionType, permissiveConstruction

Fields inherited from interface ExpressionType

ATTRIBUTE, ATTRIBUTE_DOUBLE, ATTRIBUTE_GEOMETRY, ATTRIBUTE_INTEGER, ATTRIBUTE_STRING, ATTRIBUTE_UNDECLARED, FUNCTION, LITERAL_DOUBLE, LITERAL_GEOMETRY, LITERAL_INTEGER, LITERAL_LONG, LITERAL_STRING, LITERAL_UNDECLARED, MATH_ADD, MATH_DIVIDE, MATH_MULTIPLY, MATH_SUBTRACT

Fields inherited from interface Expression

NIL

Constructor Summary

FilterFunction_distance()

Method Summary

Object

evaluate(Object feature) This method checks if the object is an instance of Feature and if so, calls through to #evaluate(Feature).

Methods inherited from class FunctionExpressionImpl

accept, equals, functionName, getArgCount, getArgs, getExpression, getFallbackValue, getFunctionName, getImplementationHints, getName, getParameters, getType, setArgs, setFallbackValue, setName, setParameters, toString

Methods inherited from class DefaultExpression

accept, evaluate, getValue, isAttributeExpression, isExpression, isFunctionExpression, isGeometryExpression, isLiteralExpression, isMathExpression, isMathExpression

Methods inherited from class ExpressionAbstract

eval, eval, evaluate

Methods inherited from class Object

clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface Expression

accept, evaluate, getValue

Methods inherited from interface Expression

evaluate

Field Detail

NAME

public static FunctionName NAME

Constructor Detail

FilterFunction_distance

public FilterFunction_distance()

Method Detail

evaluate

public Object evaluate(Object feature)

Description copied from class: DefaultExpression

This method checks if the object is an instance of Feature and if so, calls through to #evaluate(Feature). This is done to maintain backwards compatability with previous version of Expression api which depended on Feature. If the object is not an instance of feature the super implementation is called.

Specified by:

evaluate in interface Expression

Overrides:

evaluate in class DefaultExpression