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org.eclipse.emf.workspace.util
Class OperationChangeDescription
java.lang.Object
org.eclipse.emf.common.notify.impl.BasicNotifierImpl
org.eclipse.emf.ecore.impl.BasicEObjectImpl
org.eclipse.emf.ecore.impl.EObjectImpl
org.eclipse.emf.ecore.change.impl.ChangeDescriptionImpl
org.eclipse.emf.workspace.util.OperationChangeDescription
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All Implemented Interfaces:
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Notifier,
ChangeDescription,
EObject,
InternalEObject,
TransactionChangeDescription
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public class OperationChangeDescription
- extends
ChangeDescriptionImpl
- implements
TransactionChangeDescription
A change description that simply wraps an
IUndoableOperation, asking
it to undo or redo when
applying.
Note that this class is not intended to be used by clients. It is
only needed by service providers extending this API.
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Method Summary
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void
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apply
()
I apply my change by undoing the encapsulated operation. |
void
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applyAndReverse
()
I apply-and-reverse by alternately undoing and redoing the encapsulated
operation. |
boolean
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canApply
()
I can apply if my wrapped operation can undo or redo, according to whether
it was last undone or redone. |
void
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dispose
()
Forgets my operation and clears my reference to the adaptable. |
boolean
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isEmpty
()
I can only assume that the operation I wrap makes some kind of change. |
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Methods inherited from class org.eclipse.emf.ecore.change.impl.
ChangeDescriptionImpl
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eGet,
eInverseRemove,
eIsSet,
eSet,
eStaticClass,
eUnset,
getContainedEObjects,
getObjectChanges,
getObjectsToAttach,
getObjectsToDetach,
getObjectsToDetachGen,
getOldContainer,
getOldContainmentFeature,
getOldContainmentInformation,
getResourceChanges,
preApply
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Methods inherited from class org.eclipse.emf.ecore.impl.
EObjectImpl
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eAdapters,
eBasicAdapters,
eBasicProperties,
eBasicSetContainer,
eClass,
eContainerFeatureID,
eDeliver,
eInternalContainer,
eIsProxy,
eProperties,
eSetClass,
eSetDeliver,
eSetProxyURI
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Methods inherited from class org.eclipse.emf.ecore.impl.
BasicEObjectImpl
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eAddVirtualValue,
eAllContents,
eBaseStructuralFeatureID,
eBasicRemoveFromContainer,
eBasicRemoveFromContainerFeature,
eBasicSetContainer,
eComputeVirtualValuesCapacity,
eContainer,
eContainerAdapterArray,
eContainingFeature,
eContainmentFeature,
eContainmentFeature,
eContains,
eContents,
eCrossReferences,
eDerivedStructuralFeatureID,
eDerivedStructuralFeatureID,
eDirectResource,
eDynamicBasicRemoveFromContainer,
eDynamicClass,
eDynamicFeature,
eDynamicFeatureID,
eDynamicGet,
eDynamicGet,
eDynamicGet,
eDynamicInverseAdd,
eDynamicInverseAdd,
eDynamicInverseRemove,
eDynamicInverseRemove,
eDynamicIsSet,
eDynamicIsSet,
eDynamicIsSet,
eDynamicSet,
eDynamicSet,
eDynamicSet,
eDynamicUnset,
eDynamicUnset,
eDynamicUnset,
eGet,
eGet,
eGet,
eHasSettings,
eInternalResource,
eInverseAdd,
eInverseAdd,
eInverseRemove,
eIsSet,
eObjectForURIFragmentSegment,
eOpenGet,
eOpenIsSet,
eOpenSet,
eOpenUnset,
eProxyURI,
eRemoveVirtualValue,
eResolveProxy,
eResource,
eSet,
eSetDirectResource,
eSetResource,
eSetStore,
eSetting,
eSettingDelegate,
eSettings,
eSetVirtualIndexBits,
eSetVirtualValue,
eSetVirtualValues,
eStaticFeatureCount,
eStore,
eUnset,
eURIFragmentSegment,
eVirtualBitCount,
eVirtualGet,
eVirtualGet,
eVirtualIndex,
eVirtualIndexBits,
eVirtualIsSet,
eVirtualSet,
eVirtualUnset,
eVirtualValue,
eVirtualValues,
toString
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Methods inherited from interface org.eclipse.emf.ecore.
EObject
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eAllContents,
eClass,
eContainer,
eContainingFeature,
eContainmentFeature,
eContents,
eCrossReferences,
eGet,
eGet,
eIsProxy,
eIsSet,
eResource,
eSet,
eUnset
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OperationChangeDescription
public OperationChangeDescription(
IUndoableOperation operation,
IAdaptable info)
- Initializes me with the undoable operation that I encapsulate and the
adaptable with which it was originally executed.
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Parameters:
-
operation - the operation that I encapsulate -
info - the adaptable to provide when undoing or redoing the operation
canApply
public boolean canApply()
- I can apply if my wrapped operation can undo or redo, according to whether
it was last undone or redone.
-
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Specified by:
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canApply
in interface
TransactionChangeDescription
-
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Returns:
-
true if my operation can undo/redo;
false, otherwise -
See Also:
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IUndoableOperation.canUndo(),
IUndoableOperation.canRedo()
apply
public void apply()
- I apply my change by undoing the encapsulated operation. After it is
undone, I dispose myself.
-
-
Specified by:
-
apply
in interface
ChangeDescription
-
Overrides:
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apply
in class
ChangeDescriptionImpl
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applyAndReverse
public void applyAndReverse()
- I apply-and-reverse by alternately undoing and redoing the encapsulated
operation.
-
-
Specified by:
-
applyAndReverse
in interface
ChangeDescription
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Overrides:
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applyAndReverse
in class
ChangeDescriptionImpl
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isEmpty
public boolean isEmpty()
- I can only assume that the operation I wrap makes some kind of change.
-
-
Specified by:
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isEmpty
in interface
TransactionChangeDescription
-
-
Returns:
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false, always
dispose
public void dispose()
- Forgets my operation and clears my reference to the adaptable.
-
-
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