groovy.lang

Class MetaClassRegistryChangeEvent

java.lang.Object

java.util.EventObject

groovy.lang.MetaClassRegistryChangeEvent

All Implemented Interfaces:

Serializable

public class MetaClassRegistryChangeEvent
extends EventObject

An event used to propagate meta class updates

Author:

Jochen Theodorou

See Also:

Serialized Form

Field Summary

Fields inherited from class java.util.EventObject

source

Constructor Summary

Constructors

Constructor and Description
MetaClassRegistryChangeEvent(Object source, Object instance, Class clazz, MetaClass oldMetaClass, MetaClass newMetaClass) Constructs a new MetaClassRegistryChangeEvent Object

Method Summary

Methods

Modifier and Type	Method and Description
Class	getClassToUpdate() Get the class that is updated.
Object	getInstance() Returns the instance this event is for.
MetaClass	getNewMetaClass() Get the new MetaClass
MetaClass	getOldMetaClass() Get the old MetaClass
MetaClassRegistry	getRegistry() Get the MetaClassRegistry that originates this change
boolean	isPerInstanceMetaClassChange() Determines if this event is for a change for a single instance or all instances of the Class.

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

MetaClassRegistryChangeEvent

public MetaClassRegistryChangeEvent(Object source,
                            Object instance,
                            Class clazz,
                            MetaClass oldMetaClass,
                            MetaClass newMetaClass)

Constructs a new MetaClassRegistryChangeEvent Object

Parameters:

source - The object the the event originates at.

instance - Object instance the MetaClass change is on.

clazz - The class that is affected by the registry change

oldMetaClass - The old MetaClass

newMetaClass - The new MetaClass

Method Detail

getClassToUpdate

public Class getClassToUpdate()

Get the class that is updated.

Returns:

The updated class

getNewMetaClass

public MetaClass getNewMetaClass()

Get the new MetaClass

Returns:

The new MetaClass

getOldMetaClass

public MetaClass getOldMetaClass()

Get the old MetaClass

Returns:

The old MetaClass

isPerInstanceMetaClassChange

public boolean isPerInstanceMetaClassChange()

Determines if this event is for a change for a single instance or all instances of the Class.

Returns:

whether this event is for a single instance

getInstance

public Object getInstance()

Returns the instance this event is for.

Returns:

the instance or null if this event is for a change for all instances of a class

getRegistry

public MetaClassRegistry getRegistry()

Get the MetaClassRegistry that originates this change

Returns:

the source MetaClassRegistry