org.geotools.filter.expression
Class SimpleFeaturePropertyAccessorFactory

Object
  extended by 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
SimpleFeaturePropertyAccessorFactory()
           
 
Method Summary
 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.


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