Eclipse EMF Model Transaction Development Guide (Galileo) - CompositeChangeDescription (EMF Model Transaction Workbench Integration Javadoc)

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org.eclipse.emf.transaction.util
Class CompositeChangeDescription


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.transaction.util.CompositeChangeDescription

All Implemented Interfaces:: Notifier, ChangeDescription, EObject, InternalEObject, TransactionChangeDescription

public class CompositeChangeDescription
extends ChangeDescriptionImpl
implements TransactionChangeDescription
extends ChangeDescriptionImpl
implements TransactionChangeDescription

A composition of zero or more change descriptions representing the changes performed by transactions in a possibly nested structure. In the execution of a transaction, the changes that it makes in between nested transactions and the changes made by those nested transactions are stored as discrete ChangeDescriptions in a composite. The composite structure is recursive.

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.emf.ecore.change.impl. ChangeDescriptionImpl

ChangeDescriptionImpl.OldContainmentInformation

Nested classes/interfaces inherited from class org.eclipse.emf.ecore.impl. BasicEObjectImpl

BasicEObjectImpl.EPropertiesHolder, BasicEObjectImpl.EPropertiesHolderBaseImpl, BasicEObjectImpl.EPropertiesHolderImpl

Nested classes/interfaces inherited from class org.eclipse.emf.common.notify.impl. BasicNotifierImpl

BasicNotifierImpl.EAdapterList< E extends Object & Adapter>

Nested classes/interfaces inherited from interface org.eclipse.emf.ecore. InternalEObject

InternalEObject.EStore

Field Summary

Fields inherited from class org.eclipse.emf.ecore.change.impl. ChangeDescriptionImpl

objectChanges, objectsToAttach, objectsToDetach, oldContainmentInformation, resourceChanges

Fields inherited from class org.eclipse.emf.ecore.impl. EObjectImpl

eAdapters, eContainer, eContainerFeatureID, EDELIVER, EDYNAMIC_CLASS, eFlags, ELAST_EOBJECT_FLAG, ELAST_NOTIFIER_FLAG, eProperties, EPROXY

Fields inherited from class org.eclipse.emf.ecore.impl. BasicEObjectImpl

EVIRTUAL_GET, EVIRTUAL_IS_SET, EVIRTUAL_NO_VALUE, EVIRTUAL_SET, EVIRTUAL_UNSET

Fields inherited from interface org.eclipse.emf.ecore. InternalEObject

EOPPOSITE_FEATURE_BASE

Constructor Summary

CompositeChangeDescription ()


Method Summary

void add ( ChangeDescription change)
          Adds a change description to me.

void apply ()


void applyAndReverse ()


boolean canApply ()
          I can apply myself if all of my composed changes can apply themselves.

void clear ()
          Removes any change descriptions that I may have.

EMap< EObject, EList< FeatureChange>> getObjectChanges ()
          My object changes are the concatenation of the changes in my composed descriptions.

EList< EObject> getObjectsToAttach ()
          My objects to detach are the concatenation of the changes in my composed descriptions.

EList< EObject> getObjectsToDetach ()
          My objects to attach are the concatenation of the changes in my composed descriptions.

EList< ResourceChange> getResourceChanges ()
          My resource changes are the concatenation of the changes in my composed descriptions.

boolean isEmpty ()
          Queries whether I have no composed change descriptions.

String toString ()


Methods inherited from class org.eclipse.emf.ecore.change.impl. ChangeDescriptionImpl

eGet, eInverseRemove, eIsSet, eSet, eStaticClass, eUnset, getContainedEObjects, getObjectsToDetachGen, getOldContainer, getOldContainmentFeature, getOldContainmentInformation, preApply

Methods inherited from class org.eclipse.emf.ecore.impl. EObjectImpl

eAdapters, eBasicAdapters, eBasicProperties, eBasicSetContainer, eClass, eContainerFeatureID, eDeliver, eInternalContainer, eIsProxy, eProperties, eSetClass, eSetDeliver, eSetProxyURI

Methods inherited from class org.eclipse.emf.ecore.impl. BasicEObjectImpl

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

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

eBasicAdapterArray, eBasicHasAdapters, eNotificationRequired, eNotify

Methods inherited from class java.lang. Object

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

Methods inherited from interface org.eclipse.emf.ecore. EObject

eAllContents, eClass, eContainer, eContainingFeature, eContainmentFeature, eContents, eCrossReferences, eGet, eGet, eIsProxy, eIsSet, eResource, eSet, eUnset

Methods inherited from interface org.eclipse.emf.common.notify. Notifier

eAdapters, eDeliver, eNotify, eSetDeliver

Methods inherited from interface org.eclipse.emf.ecore. InternalEObject

eNotificationRequired

Constructor Detail

CompositeChangeDescription

public CompositeChangeDescription()

Method Detail

isEmpty

public final boolean isEmpty()

Queries whether I have no composed change descriptions.

Specified by:: isEmpty in interface TransactionChangeDescription

Returns:: false if I have any change descriptions; true, otherwise

clear

public final void clear()

Removes any change descriptions that I may have.

canApply

public boolean canApply()

I can apply myself if all of my composed changes can apply themselves.

Specified by:: canApply in interface TransactionChangeDescription

Returns:: true if my changes can be applied; false otherwise (i.e., they are not invertible)

apply

public void apply()

Specified by:: apply in interface ChangeDescription
Overrides:: apply in class ChangeDescriptionImpl

applyAndReverse

public void applyAndReverse()

Specified by:: applyAndReverse in interface ChangeDescription
Overrides:: applyAndReverse in class ChangeDescriptionImpl

add

public void add(
ChangeDescription change)

Adds a change description to me.

Parameters:: change - a new change description to add

getObjectChanges

public 
EMap<
EObject,
EList<
FeatureChange>> getObjectChanges()

My object changes are the concatenation of the changes in my composed descriptions.

Specified by:: getObjectChanges in interface ChangeDescription
Overrides:: getObjectChanges in class ChangeDescriptionImpl

getObjectsToDetach

public 
EList<
EObject> getObjectsToDetach()

My objects to attach are the concatenation of the changes in my composed descriptions.

Specified by:: getObjectsToDetach in interface ChangeDescription
Overrides:: getObjectsToDetach in class ChangeDescriptionImpl

getObjectsToAttach

public 
EList<
EObject> getObjectsToAttach()

My objects to detach are the concatenation of the changes in my composed descriptions.

Specified by:: getObjectsToAttach in interface ChangeDescription
Overrides:: getObjectsToAttach in class ChangeDescriptionImpl

getResourceChanges

public 
EList<
ResourceChange> getResourceChanges()

My resource changes are the concatenation of the changes in my composed descriptions.

Specified by:: getResourceChanges in interface ChangeDescription
Overrides:: getResourceChanges in class ChangeDescriptionImpl

toString

public 
String toString()

Overrides:: toString in class BasicEObjectImpl