public void cdoInternalPostDetach(boolean remote) {
if (remote) {
setInstanceContainer(null, eContainerFeatureID());
setInstanceResource(null);
return;
}
// This loop adjusts the opposite wrapper objects to support dangling references. See
// Bugzilla_251263_Test
InternalCDORevision revision = cdoRevision();
for (EReference reference : classInfo.getAllPersistentReferences()) {
if (!reference.isContainer() && classInfo.hasPersistentOpposite(reference)) {
if (reference.isMany()) {
EReference oppositeReference = reference.getEOpposite();
int size = revision.size(reference);
for (int i = 0; i < size; i++) {
EObject object = (EObject) getValueFromRevision(reference, i);
adjustPersistentOppositeReference(this, object, oppositeReference);
}
} else {
EObject oppositeObject = (EObject) instance.eGet(reference);
if (oppositeObject != null) {
EReference oppositeReference = reference.getEOpposite();
adjustPersistentOppositeReference(this, oppositeObject, oppositeReference);
}
}
}
}
}
/** TODO Consider using only EMF concepts for resolving proxies! */
protected void resolveAllProxies() {
for (EStructuralFeature feature : classInfo.getAllPersistentFeatures()) {
if (feature instanceof EReference) {
resolveProxies(feature);
}
}
}
/**
* CDO persists the isUnset state of an eObject in the database. The indicator for this is that
* the feature is null in the revision (see CDOStore.isSet()). When committing a legacy object all
* values in the instance for native attributes are set with the java default values. So, these
* values will be stored in the revision and CDO cannot distinguish whether the feature is set or
* not. This method must ensure that the value will be set to null if the feature is not set.
*/
public void cdoInternalPreCommit() {
// We have to set this here because the CDOLegacyAdapter will not be notified when the instance
// is the target of a
// single-directional containment reference.
// If the container is not an legacy Object the system will get no information
instanceToRevisionContainment();
InternalCDORevision revision = cdoRevision();
for (EStructuralFeature feature : classInfo.getAllPersistentFeatures()) {
if (feature.isUnsettable()) {
if (!isSetInstanceValue(instance, feature)) {
if (feature.isMany()) {
@SuppressWarnings("unchecked")
InternalEList<Object> list = (InternalEList<Object>) instance.eGet(feature);
clearEList(list);
} else {
revision.set(feature, EStore.NO_INDEX, null);
}
} else if (instance.eGet(feature) == null) {
// Must be single-valued!
revision.set(feature, EStore.NO_INDEX, CDORevisionData.NIL);
}
}
}
}
protected void instanceToRevision() {
InternalCDORevision revision = cdoRevision();
if (TRACER.isEnabled()) {
TRACER.format(
"Transfering instance to revision: {0} --> {1}", instance, revision); // $NON-NLS-1$
}
// Handle containment
instanceToRevisionContainment();
// Handle values
for (EStructuralFeature feature : classInfo.getAllPersistentFeatures()) {
instanceToRevisionFeature(feature);
}
revision.setUnchunked();
}
/** @since 3.0 */
protected void revisionToInstanceFeature(EStructuralFeature feature) {
if (feature.isUnsettable() && !viewAndState.view.getStore().isSet(this, feature)) {
// Clarify if this is sufficient for bidirectional references
instance.eUnset(feature);
return;
}
if (feature.isMany()) {
if (TRACER.isEnabled()) {
TRACER.format(
"State of Object ("
+ this
+ "/"
+ instance
+ ") is : "
+ viewAndState.state); // $NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
if (viewAndState.state == CDOState.CLEAN
|| viewAndState.state == CDOState.PROXY
|| viewAndState.state == CDOState.NEW
|| viewAndState.state == CDOState.DIRTY) {
InternalCDORevision revision = cdoRevision();
int size = revision.size(feature);
@SuppressWarnings("unchecked")
InternalEList<Object> list = (InternalEList<Object>) instance.eGet(feature);
clearEList(list);
for (int i = 0; i < size; i++) {
Object object = getValueFromRevision(feature, i);
if (TRACER.isEnabled()) {
TRACER.format(
"Adding "
+ object
+ " to feature "
+ feature
+ "in instance "
+ instance); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
// Disable notifications from value during the
// invalidation in case of
// eInverseAdd/eInverseRemove
boolean eDeliver = false;
if (object instanceof Notifier) {
Notifier notifier = (Notifier) object;
eDeliver = notifier.eDeliver();
if (eDeliver) {
notifier.eSetDeliver(false);
}
}
list.basicAdd(object, null);
if (object instanceof Notifier && eDeliver) {
Notifier notifier = (Notifier) object;
notifier.eSetDeliver(eDeliver);
}
}
}
} else {
// !feature.isMany()
Object object = getValueFromRevision(feature, 0);
if (feature instanceof EAttribute) {
if (TRACER.isEnabled()) {
TRACER.format(
"Setting attribute value "
+ object
+ " to feature "
+ feature
+ " in instance "
+ instance); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
// Just fake it for the store :(
if (feature.isUnsettable() && object.equals(CDORevisionData.NIL)) {
eSet(feature, null);
} else {
if (object != null) {
eSet(feature, object);
} else {
// TODO Unset for features with non-null default values would not lead to null values.
// Probably CDORevisionData.NIL has to be used, but that impacts all IStores. Deferred
// ;-(
eUnset(feature);
}
}
} else {
// EReferences
if (TRACER.isEnabled()) {
TRACER.format(
"Adding object "
+ object
+ " to feature "
+ feature
+ " in instance "
+ instance); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
// Disable notifications from value during the
// invalidation in case of
// eInverseAdd/eInverseRemove
boolean eDeliver = false;
if (object instanceof Notifier) {
Notifier notifier = (Notifier) object;
eDeliver = notifier.eDeliver();
if (eDeliver) {
notifier.eSetDeliver(false);
}
}
EObject oldContainerOfValue = null;
boolean eDeliverForOldContainerOfValue = false;
if (object instanceof InternalEObject) {
InternalEObject eObject = (InternalEObject) object;
oldContainerOfValue = eObject.eInternalContainer();
if (oldContainerOfValue != null) {
eDeliverForOldContainerOfValue = oldContainerOfValue.eDeliver();
if (eDeliverForOldContainerOfValue) {
oldContainerOfValue.eSetDeliver(false);
}
}
}
int featureID = instance.eClass().getFeatureID(feature);
Class<? extends Object> baseClass = object == null ? null : object.getClass();
EStructuralFeature.Internal internalFeature = (EStructuralFeature.Internal) feature;
EReference oppositeReference = internalFeature.getEOpposite();
if (oppositeReference != null) {
if (object != null && object != instance.eGet(feature)) {
// If you have a containment reference but the container is not set, but the object is
// attached to a
// resource
// do not set the feature to null. Otherwise the object will be removed from the
// container which is the
// resource instead of the original container. As a result the object will be detached.
// See
// MapTest.testEObjectToEObjectValueContainedMap for more information
if (object != instance.eContainer() || !oppositeReference.isContainment()) {
instance.eInverseAdd((InternalEObject) object, featureID, baseClass, null);
}
if (!classInfo.hasPersistentOpposite(internalFeature)) {
adjustTransientOppositeReference(
instance, (InternalEObject) object, oppositeReference);
}
}
} else {
if (object != CDORevisionData.NIL) {
EReference reference = (EReference) feature;
if (reference.isContainment()) {
if (object != null) {
// Calling eSet it not the optimal approach, but currently there is no other way to
// set the value here.
// To avoid attaching already processed (clean) objects a check was introduced to
// CDOResourceImpl.attached(EObject).
// If we find a way to avoid the call of eSet and if we are able to only set the
// feature value directly
// this check can be removed from CDOResourceImpl. See also Bug 352204.
instance.eSet(feature, object);
} else {
instance.eSet(feature, null);
}
} else {
instance.eSet(feature, object);
}
} else {
instance.eSet(feature, null);
}
}
if (object instanceof Notifier && eDeliver) {
Notifier notifier = (Notifier) object;
notifier.eSetDeliver(eDeliver);
}
if (oldContainerOfValue != null && eDeliverForOldContainerOfValue) {
oldContainerOfValue.eSetDeliver(eDeliverForOldContainerOfValue);
}
if (TRACER.isEnabled()) {
TRACER.format(
"Added object "
+ object
+ " to feature "
+ feature
+ " in instance "
+ instance); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
}
}
}
protected void revisionToInstance() {
synchronized (recursionCounter) {
if (underConstruction) {
// Return if revisionToInstance was called before to avoid doubled calls
return;
}
underConstruction = true;
InternalCDORevision revision = cdoRevision();
if (TRACER.isEnabled()) {
TRACER.format(
"Transfering revision to instance: {0} --> {1}", revision, instance); // $NON-NLS-1$
}
boolean deliver = instance.eDeliver();
if (deliver) {
instance.eSetDeliver(false);
}
Counter counter = recursionCounter.get();
if (counter == null) {
counter = new Counter();
recursionCounter.set(counter);
}
InternalCDOResource resource = null;
boolean bypassPermissionChecks = revision.bypassPermissionChecks(true);
try {
registerWrapper(this);
counter.increment();
viewAndState.view.registerObject(this);
revisionToInstanceResource();
revisionToInstanceContainer();
Resource eResource = instance.eResource();
if (eResource instanceof InternalCDOResource) {
resource = (InternalCDOResource) eResource;
resource.cdoInternalLoading(instance);
}
for (EStructuralFeature feature : classInfo.getAllPersistentFeatures()) {
revisionToInstanceFeature(feature);
}
} catch (RuntimeException ex) {
OM.LOG.error(ex);
throw ex;
} catch (Exception ex) {
OM.LOG.error(ex);
throw new CDOException(ex);
} finally {
try {
revision.bypassPermissionChecks(bypassPermissionChecks);
if (resource != null) {
resource.cdoInternalLoadingDone(instance);
}
if (deliver) {
instance.eSetDeliver(true);
}
} finally {
if (counter.decrement() == 0) {
recursionCounter.remove();
}
unregisterWrapper(this);
underConstruction = false;
}
}
}
}
