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

java.lang.Object
  org.eclipse.emf.common.notify.impl.AdapterImpl

All Implemented Interfaces:

Adapter, Adapter.Internal

Direct Known Subclasses:

AdapterFactoryEditingDomain.EditingDomainProvider, EContentAdapter, ESuperAdapter, ItemProviderAdapter, MappingRootImpl.MappedObjectStateAdapter, ResourceImpl.ModificationTrackingAdapter

public class AdapterImpl
extends java.lang.Object
implements Adapter.Internal

An extensible adapter implementation.

Nested Class Summary

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

Adapter.Internal

Field Summary

protected Notifier

target The last notifier set to this adapter.

Constructor Summary

AdapterImpl()
Creates an instance.

Method Summary

Notifier	getTarget() Returns the target from which the adapter receives notification.
boolean	isAdapterForType(java.lang.Object type) Returns false
void	notifyChanged(Notification msg) Does nothing; clients may override so that it does something.
void	setTarget(Notifier newTarget) Sets the target from which the adapter will receive notification.
void	unsetTarget(Notifier oldTarget) Unsets the target from which the adapter will receive notification.

Methods inherited from class java.lang.Object

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

Field Detail

target

protected Notifier target

The last notifier set to this adapter.

Constructor Detail

AdapterImpl

public AdapterImpl()

Creates an instance.

Method Detail

isAdapterForType

public boolean isAdapterForType(java.lang.Object type)

Returns false

Specified by:

isAdapterForType in interface Adapter

Parameters:

type - the type.

Returns:

false

See Also:

AdapterFactory.isFactoryForType(java.lang.Object)

notifyChanged

public void notifyChanged(Notification msg)

Does nothing; clients may override so that it does something.

Specified by:

notifyChanged in interface Adapter

Parameters:

msg - a description of the change.

getTarget

public Notifier getTarget()

Description copied from interface: Adapter

Returns the target from which the adapter receives notification. In general, an adapter may be shared by more than one notifier.

Specified by:

getTarget in interface Adapter

Returns:

the target notifier.

See Also:

Adapter.setTarget(org.eclipse.emf.common.notify.Notifier)

setTarget

public void setTarget(Notifier newTarget)

Description copied from interface: Adapter

Sets the target from which the adapter will receive notification. This method is only to be called by a notifier when this adapter is added to or removed from its adapter list. In general, an adapter may be shared by more than one notifier.

Specified by:

setTarget in interface Adapter

Parameters:

newTarget - the new notifier.

See Also:

Adapter.getTarget()

unsetTarget

public void unsetTarget(Notifier oldTarget)

Description copied from interface: Adapter.Internal

Unsets the target from which the adapter will receive notification. This method is only to be called by a notifier when this adapter is removed from its adapter list. In general, an adapter may be shared by more than one notifier, so this mechanism allows the adapter to know specifically which notifier will no longer be notifying.

Specified by:

unsetTarget in interface Adapter.Internal

Parameters:

oldTarget - the old notifier.

See Also:

Adapter.getTarget(), Adapter.setTarget(Notifier)