Package org.eclipse.emf.common.notify.impl

Class BasicNotifierImpl

java.lang.Object

org.eclipse.emf.common.notify.impl.BasicNotifierImpl

All Implemented Interfaces:

Notifier

Direct Known Subclasses:

NotifierImpl

public class BasicNotifierImpl
extends Object
implements Notifier

An extensible notifier implementation.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	BasicNotifierImpl.EAdapterList<E extends Object & Adapter>
static interface	BasicNotifierImpl.EObservableAdapterList	An interface implemented by adapter lists that allows listeners to observe adapters being added and removed.
static interface	BasicNotifierImpl.EScannableAdapterList	An interface implemented by an adapter list that supports direct adapter lookup based on type, i.e., that directly and very efficiently implements the equivalent of the follow logic.

Constructor Summary

Constructors

Constructor	Description
BasicNotifierImpl()	Creates a blank new instance.

Method Summary

Modifier and Type	Method	Description
EList<Adapter>	eAdapters()	Returns list of the adapters associated with this notifier.
protected Adapter[]	eBasicAdapterArray()	Returns the underlying array of adapters.
protected BasicEList<Adapter>	eBasicAdapters()	Returns the adapter list, even if it is null.
protected boolean	eBasicHasAdapters()	Returns whether there are any adapters.
boolean	eDeliver()	Returns whether this notifier will deliver notifications to the adapters.
boolean	eNotificationRequired()	Returns whether eNotify needs to be called.
void	eNotify(Notification notification)	Notifies a change to a feature of this notifier as described by the notification.
void	eSetDeliver(boolean deliver)	Sets whether this notifier will deliver notifications to the adapters.

Methods inherited from class java.lang.Object

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

Constructor Details

BasicNotifierImpl

public BasicNotifierImpl()

Creates a blank new instance.

Method Details

eAdapters

public EList<Adapter> eAdapters()

Description copied from interface: Notifier

Returns list of the adapters associated with this notifier.

Specified by:

eAdapters in interface Notifier

Returns:

the adapters associated with this notifier.

eBasicAdapters

protected BasicEList<Adapter> eBasicAdapters()

Returns the adapter list, even if it is null.

Returns:

the adapter list, even if it is null.

eBasicAdapterArray

protected Adapter[] eBasicAdapterArray()

Returns the underlying array of adapters. The length of this array reflects exactly the number of adapters where null represents the lack of any adapters. This array may not be modified by the caller and must be guaranteed not to be modified even if the list of adapters is modified.

Returns:

the underlying array of adapters.

eBasicHasAdapters

protected boolean eBasicHasAdapters()

Returns whether there are any adapters.

Returns:

whether there are any adapters.

eDeliver

public boolean eDeliver()

Description copied from interface: Notifier

Returns whether this notifier will deliver notifications to the adapters.

Specified by:

eDeliver in interface Notifier

Returns:

whether notifications will be delivered.

See Also:

• Notifier.eSetDeliver(boolean)

eSetDeliver

public void eSetDeliver(boolean deliver)

Description copied from interface: Notifier

Sets whether this notifier will deliver notifications to the adapters.

Specified by:

eSetDeliver in interface Notifier

Parameters:

deliver - whether or not to deliver.

See Also:

• Notifier.eDeliver()

eNotify

public void eNotify(Notification notification)

Description copied from interface: Notifier

Notifies a change to a feature of this notifier as described by the notification. The notifications will generally be delivered to the adapters via Adapter.notifyChanged.

Specified by:

eNotify in interface Notifier

Parameters:

notification - a description of the change.

eNotificationRequired

public boolean eNotificationRequired()

Returns whether eNotify needs to be called. This may return true even when eDeliver is false or when eAdapters is empty.

Returns:

whether eNotify needs to be called.