org.progeeks.meta
Interface MetaKit

All Known Implementing Classes:

BeanMetaKit, CompositeMetaKit, MapMetaKit, MBeanMetaKit, PreferencesMetaKit

public interface MetaKit

Abstraction of a meta-object implementation layer. This provides some direct access to the adapter layer that may be necessary when interacting with certain meta-object property values.

Version:

$Revision: 1.2 $

Author:

Paul Speed

Method Summary

java.lang.Object	getInternalObject(MetaObject object) Returns the internal object representation for the specified meta-object if one exists.
MetaClass	getMetaClassForObject(java.lang.Object object) Returns the appropriate meta-class for the specified object.
MetaClass	getMetaClassForObject(java.lang.Object object, MetaClassRegistry classRegistry) Returns the appropriate meta-class for the specified object.
MetaObjectFactory	getMetaObjectFactory() Returns a factory that can be used to create new MetaObject based values using this kit's underlying implementation.
MetaObject	wrapObject(java.lang.Object object, MetaClass mClass) Wraps the specified object in a meta-object adapter specific to this kit's implementation layer.

Method Detail

getInternalObject

java.lang.Object getInternalObject(MetaObject object)

Returns the internal object representation for the specified meta-object if one exists. For meta-object implementations that wrap an internal object, this will return the internal object. null is returned if the meta-object implementation does not internally wrap real objects.

getMetaClassForObject

MetaClass getMetaClassForObject(java.lang.Object object,
                                MetaClassRegistry classRegistry)

Returns the appropriate meta-class for the specified object. If an appropriate meta-class has not been registered then this method returns null.

getMetaClassForObject

MetaClass getMetaClassForObject(java.lang.Object object)

Returns the appropriate meta-class for the specified object. If an appropriate meta-class has not been registered then this method returns null. The meta-class is looked up in the root class registry.

wrapObject

MetaObject wrapObject(java.lang.Object object,
                      MetaClass mClass)

Wraps the specified object in a meta-object adapter specific to this kit's implementation layer. Returns null if the object cannot be wrapped. Throws UnsupportedOperationException if this kit doesn't support wrapping.

getMetaObjectFactory

MetaObjectFactory getMetaObjectFactory()

Returns a factory that can be used to create new MetaObject based values using this kit's underlying implementation.