org.geotools.filter.expression
Interface PropertyAccessorFactory

All Known Implementing Classes:

DirectPropertyAccessorFactory, FeaturePropertyAccessorFactory, MapPropertyAccessorFactory, NullPropertyAccessorFactory, SimpleFeaturePropertyAccessorFactory, ThisPropertyAccessorFactory, XmlXPathPropertyAccessorFactory, XPathPropertyAccessorFactory

public interface PropertyAccessorFactory

Factory used to create instances of PropertyAccessor

Author:

Justin Deoliveira, The Open Planning Project

Field Summary

static Hints.Key

NAMESPACE_CONTEXT Hints key used to pass namespace context to createPropertyAccessor(Class, String, Class, Hints) in the form of a NamespaceSupport instance with the prefix/namespaceURI mappings

Method Summary

PropertyAccessor

createPropertyAccessor(Class<?> type, String xpath, Class<?> target, Hints hints) Creates a property accessor for a particular class.

Field Detail

NAMESPACE_CONTEXT

static final Hints.Key NAMESPACE_CONTEXT

Hints key used to pass namespace context to createPropertyAccessor(Class, String, Class, Hints) in the form of a NamespaceSupport instance with the prefix/namespaceURI mappings

Method Detail

createPropertyAccessor

PropertyAccessor createPropertyAccessor(Class<?> type,
                                        String xpath,
                                        Class<?> target,
                                        Hints hints)

Creates a property accessor for a particular class.

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.