org.geotools.filter.expression

Class SimpleFeaturePropertyAccessorFactory

Object

SimpleFeaturePropertyAccessorFactory

All Implemented Interfaces:

PropertyAccessorFactory

public class SimpleFeaturePropertyAccessorFactory
extends Object
implements PropertyAccessorFactory

Creates a property accessor for simple features.

The created accessor handles a small subset of xpath expressions, a non-nested "name" which corresponds to a feature attribute, and "@id", corresponding to the feature id.

THe property accessor may be run against SimpleFeature, or against SimpleFeature. In the former case the feature property value is returned, in the latter the feature property type is returned.

Author:

Justin Deoliveira, The Open Planning Project

Field Summary

Fields inherited from interface PropertyAccessorFactory

NAMESPACE_CONTEXT

Constructor Summary

Constructors

Constructor and Description
SimpleFeaturePropertyAccessorFactory()

Method Summary

Modifier and Type	Method and Description
PropertyAccessor	createPropertyAccessor(Class type, String xpath, Class target, Hints hints) Creates a property accessor for a particular class.

Methods inherited from class Object

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

Constructor Detail

SimpleFeaturePropertyAccessorFactory

public SimpleFeaturePropertyAccessorFactory()

Method Detail

createPropertyAccessor

public PropertyAccessor createPropertyAccessor(Class type,
                                               String xpath,
                                               Class target,
                                               Hints hints)

Description copied from interface: PropertyAccessorFactory

Creates a property accessor for a particular class.

Specified by:

createPropertyAccessor in interface PropertyAccessorFactory

Parameters:

type - The type of object to be accessed.

xpath - The xpath expression to evaluate.

target - The kind of result we are expecting (ie Geometry)

hints - Hints to be used when creatign the accessor.

Returns:

The property accessor, or null if this factory cannot create an accessor for the specified type.