org.geotools.filter

Class FilterAbstract

Object

FilterAbstract

All Implemented Interfaces:

Filter

Direct Known Subclasses:

AbstractFilter

public abstract class FilterAbstract
extends Object
implements Filter

Abstract implementation for Filter.

Author:

Jody Garnett

Field Summary

Fields inherited from interface Filter

EXCLUDE, INCLUDE

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	FilterAbstract()

Method Summary

Modifier and Type	Method and Description
boolean	accepts(SimpleFeature feature) Straight call throught to: evaulate( feature )
protected Object	eval(Expression expression, Object object) Helper method for subclasses to reduce null checks and automatically unpack values from attributes and collections
protected Object	eval(Expression expression, Object object, Class context) Helper method for subclasses to reduce null checks

Methods inherited from class Object

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

Methods inherited from interface Filter

accept, evaluate

Constructor Detail

FilterAbstract

protected FilterAbstract()

Method Detail

accepts

public boolean accepts(SimpleFeature feature)

Straight call throught to: evaulate( feature )

eval

protected Object eval(Expression expression,
                      Object object)

Helper method for subclasses to reduce null checks and automatically unpack values from attributes and collections

Parameters:

expression -

object -

Returns:

value or null

eval

protected Object eval(Expression expression,
                      Object object,
                      Class context)

Helper method for subclasses to reduce null checks

Parameters:

expression -

object -

context -

Returns:

value or null