org.geotools.brewer.color
Class PaletteFunction

Object
  ExpressionAbstract
      DefaultExpression
          FunctionExpressionImpl
              PaletteFunction

All Implemented Interfaces:

Factory, ExpressionType, FunctionExpression, Expression, Function

public class PaletteFunction
extends FunctionExpressionImpl
implements FunctionExpression

Author:

James Macgill

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

PaletteFunction()
Creates a new instance of PaletteFunction

PaletteFunction(FilterFactory factory)

Method Summary

Object	evaluate(SimpleFeature feature) Returns a value for this expression.
ClassificationFunction	getClassifier()
Expression	getEvaluationExpression()
int	getNumberOfClasses()
String	getPaletteName()
void	setClassifier(ClassificationFunction cf)
void	setEvaluationExpression(Expression e)
void	setFilterFactory(FilterFactory factory)
void	setNumberOfClasses(int i)
void	setPaletteName(String s)
void	setParameters(List args) Sets the function parameters.
String	toString() Creates a String representation of this Function with the function name and the arguments.

Methods inherited from class FunctionExpressionImpl

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

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 FunctionExpression

getArgCount, getArgs, getName, getType, setArgs

Methods inherited from interface Expression

accept, getValue

Methods inherited from interface Factory

getImplementationHints

Methods inherited from interface Function

getFallbackValue, getFunctionName, getParameters

Methods inherited from interface Expression

accept, evaluate, evaluate

Field Detail

NAME

public static FunctionName NAME

Constructor Detail

PaletteFunction

public PaletteFunction()

Creates a new instance of PaletteFunction

PaletteFunction

public PaletteFunction(FilterFactory factory)

Method Detail

setFilterFactory

public void setFilterFactory(FilterFactory factory)

setParameters

public void setParameters(List args)

Description copied from class: FunctionExpressionImpl

Sets the function parameters.

Specified by:

setParameters in interface FunctionExpression

Overrides:

setParameters in class FunctionExpressionImpl

getEvaluationExpression

public Expression getEvaluationExpression()

setEvaluationExpression

public void setEvaluationExpression(Expression e)

getClassifier

public ClassificationFunction getClassifier()

setClassifier

public void setClassifier(ClassificationFunction cf)

getNumberOfClasses

public int getNumberOfClasses()

setNumberOfClasses

public void setNumberOfClasses(int i)

getPaletteName

public String getPaletteName()

setPaletteName

public void setPaletteName(String s)

evaluate

public Object evaluate(SimpleFeature feature)

Description copied from class: DefaultExpression

Returns a value for this expression. If the expression is an attribute expression then the attribute of the feature should be returned. If a literal then the feature is ignored, the literal is returned as it has no relation to the feature.

Overrides:

evaluate in class DefaultExpression

Parameters:

feature - Specified feature to use when returning value.

Returns:

The value of this expression based on the feature.

toString

public String toString()

Description copied from class: FunctionExpressionImpl

Creates a String representation of this Function with the function name and the arguments. The String created should be good for most subclasses

Overrides:

toString in class FunctionExpressionImpl