org.eclipse.emf.ecp.edit.spi

Class EMFDeleteServiceImpl

java.lang.Object

org.eclipse.emf.ecp.edit.spi.EMFDeleteServiceImpl

All Implemented Interfaces:

ConditionalDeleteService, DeleteService, ViewModelService

public class EMFDeleteServiceImpl
extends Object
implements ConditionalDeleteService

Default EMF implementation of the DeleteService. Uses DeleteCommand respectively.

Since:

1.6

Author:

jfaltermeier

Constructor Summary

Constructors

Constructor and Description
EMFDeleteServiceImpl()

Method Summary

Modifier and Type	Method and Description
boolean	canDelete(Iterable<?> objects) Queries whether all of the given objects can be deleted.
boolean	canRemove(Object owner, Object feature, Iterable<?> objects) Query whether all of the given objects in some reference feature of an owner of that feature can be removed from the reference feature.
void	deleteElement(Object toDelete) Deletes the given object from the containment tree.
void	deleteElements(Collection<Object> toDelete) Deletes the given objects from the containment tree.
void	dispose() Dispose.
int	getPriority() Returns the priority for this view service.
void	instantiate(ViewModelContext context) Instantiate the view service.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.emf.ecp.edit.spi.ConditionalDeleteService

adapt, canDelete, canRemove, getDeleteService

Constructor Detail

EMFDeleteServiceImpl

public EMFDeleteServiceImpl()

Method Detail

instantiate

public void instantiate(ViewModelContext context)

Description copied from interface: ViewModelService

Instantiate the view service.

Specified by:

instantiate in interface ViewModelService

Parameters:

context - the ViewModelContext

dispose

public void dispose()

Description copied from interface: ViewModelService

Dispose.

Specified by:

dispose in interface ViewModelService

getPriority

public int getPriority()

Description copied from interface: ViewModelService

Returns the priority for this view service.

Specified by:

getPriority in interface ViewModelService

Returns:

the priority

deleteElements

public void deleteElements(Collection<Object> toDelete)

Description copied from interface: DeleteService

Deletes the given objects from the containment tree. This will cut all references to the deleted objects.

Specified by:

deleteElements in interface DeleteService

Parameters:

toDelete - the objects to delete

deleteElement

public void deleteElement(Object toDelete)

Description copied from interface: DeleteService

Deletes the given object from the containment tree. This will cut all references to the deleted object.

Specified by:

deleteElement in interface DeleteService

Parameters:

toDelete - the object to delete

canDelete

public boolean canDelete(Iterable<?> objects)

Description copied from interface: ConditionalDeleteService

Queries whether all of the given objects can be deleted.

Specified by:

canDelete in interface ConditionalDeleteService

Parameters:

objects - a number of objects to be deleted

Returns:

false if any of the objects cannot be deleted; true otherwise, including the case of no objects

canRemove

public boolean canRemove(Object owner,
                         Object feature,
                         Iterable<?> objects)

Description copied from interface: ConditionalDeleteService

Query whether all of the given objects in some reference feature of an owner of that feature can be removed from the reference feature. In the case of containment references, this amounts to deletion of the object.

Specified by:

canRemove in interface ConditionalDeleteService

Parameters:

owner - the owner of a reference to some object

feature - a reference feature of the owner

objects - a group of objects referenced by the owner from which they are to be removed

Returns:

whether the objects may be removed