org.polarsys.capella.common.platform.sirius.ted

Class DataNotifier

java.lang.Object

org.eclipse.emf.common.notify.impl.AdapterImpl

org.eclipse.emf.ecore.util.EContentAdapter

org.polarsys.capella.common.platform.sirius.ted.DataNotifier

All Implemented Interfaces:

org.eclipse.emf.common.notify.Adapter, org.eclipse.emf.common.notify.Adapter.Internal

public class DataNotifier
extends org.eclipse.emf.ecore.util.EContentAdapter

Provides EMF model notification with an unique adapter.
An adapter can be registered :

• using a given model element object (addAdapter(EObject, Adapter)),
• or using a model element class (addAdapter(Class, Adapter)).

In the first case, a notification using such an object is always forwarded to registered adapters.
In the second one, all objects used in a notification are tested against given class. If such an object implements one of the given class, then registered adapters are returned, and so on for every existing class.
That does imply the following behavior :

• Inheritance rule : If object O implements A and B, then adapters for both A and B are notified.
• Uniqueness rule : If N is a registered adapter for both A and B (in the latter case), it will be notified only one time.
• Blind registration rule : A registered adapter for new object of type A does not have to know the container class of A. If a new object A is created, and added to the model, then this adapter will be automatically notified. Container object is then accessible through Notification.getNotifier() method.

It is possible to use both ways of registration for different adapters.

An adapter registered for a given model element is always removed when this element is removed explicitly from the model.
That does not apply to adapters registered for a class (until DataNotifier is garbage collected).

Nested Class Summary

Nested classes/interfaces inherited from interface org.eclipse.emf.common.notify.Adapter

org.eclipse.emf.common.notify.Adapter.Internal

Constructor Summary

Constructors

Constructor and Description
DataNotifier(org.eclipse.emf.edit.domain.EditingDomain editingDomain) Constructor.

Method Summary

Modifier and Type	Method and Description
void	addAdapter(java.lang.Class<?> cls, org.eclipse.emf.common.notify.Adapter adapter) Add an adapter for model elements that implement given class.
void	addAdapter(org.eclipse.emf.ecore.EObject element, org.eclipse.emf.common.notify.Adapter adapter) Add an adapter for given model element.
org.eclipse.emf.edit.domain.EditingDomain	getEditingDomain()
void	notifyChanged(org.eclipse.emf.common.notify.Notification notification)
void	remove(org.eclipse.emf.common.notify.Adapter adapter) Remove adapter from registered ones.

Methods inherited from class org.eclipse.emf.ecore.util.EContentAdapter

setTarget, unsetTarget

Methods inherited from class org.eclipse.emf.common.notify.impl.AdapterImpl

getTarget, isAdapterForType

Methods inherited from class java.lang.Object

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

Constructor Detail

DataNotifier

public DataNotifier(org.eclipse.emf.edit.domain.EditingDomain editingDomain)

Constructor.

Method Detail

addAdapter

public void addAdapter(java.lang.Class<?> cls,
                       org.eclipse.emf.common.notify.Adapter adapter)

Add an adapter for model elements that implement given class.

Parameters:

cls - The Java type for looked after elements.
This is not the EMF model EClass.
Thus this can only be called on generated models.

adapter - A not null Adapter listening to changes.

addAdapter

public void addAdapter(org.eclipse.emf.ecore.EObject element,
                       org.eclipse.emf.common.notify.Adapter adapter)

Add an adapter for given model element.

Parameters:

element - A not null model element.

adapter - A not null Adapter listening to changes.

notifyChanged

public void notifyChanged(org.eclipse.emf.common.notify.Notification notification)

Specified by:

notifyChanged in interface org.eclipse.emf.common.notify.Adapter

Overrides:

notifyChanged in class org.eclipse.emf.ecore.util.EContentAdapter

See Also:

AdapterImpl.notifyChanged(org.eclipse.emf.common.notify.Notification)

remove

public void remove(org.eclipse.emf.common.notify.Adapter adapter)

Remove adapter from registered ones.

Parameters:

adapter - A not null adapter to remove.

getEditingDomain

public org.eclipse.emf.edit.domain.EditingDomain getEditingDomain()