private CDORevision applyDelta(CDORevisionDelta revisionDelta) {
CDOID id = revisionDelta.getID();
CDORevision changedObject = delegate.getRevision(id).copy();
revisionDelta.apply(changedObject);
cachedRevisions.put(id, changedObject);
return changedObject;
}
protected boolean hasFeatureConflicts(
CDORevisionDelta localDelta, List<CDORevisionDelta> remoteDeltas) {
Set<EStructuralFeature> features = new HashSet<EStructuralFeature>();
for (CDOFeatureDelta localFeatureDelta : localDelta.getFeatureDeltas()) {
features.add(localFeatureDelta.getFeature());
}
for (CDORevisionDelta remoteDelta : remoteDeltas) {
for (CDOFeatureDelta remoteFeatureDelta : remoteDelta.getFeatureDeltas()) {
EStructuralFeature feature = remoteFeatureDelta.getFeature();
if (features.contains(feature)) {
return true;
}
}
}
return false;
}
@Override
protected void resolveConflict(
CDOObject conflict, CDORevisionDelta localDelta, List<CDORevisionDelta> remoteDeltas) {
if (hasFeatureConflicts(localDelta, remoteDeltas)) {
// TODO localDelta may be corrupt already and the transaction will not be able to restore
// it!!!
throw new CDOException(
Messages.getString("AbstractObjectConflictResolver.0")); // $NON-NLS-1$
}
rollbackObject(conflict);
// Add remote deltas to local delta
for (CDORevisionDelta remoteDelta : remoteDeltas) {
for (CDOFeatureDelta remoteFeatureDelta : remoteDelta.getFeatureDeltas()) {
// TODO Add public API for this:
((InternalCDORevisionDelta) localDelta).addFeatureDelta(remoteFeatureDelta);
}
}
changeObject(conflict, localDelta);
}
protected Object changedInTargetAndDetachedInSource(CDORevisionDelta targetDelta) {
switch (resolutionPreference) {
case SOURCE_OVER_TARGET:
return targetDelta.getID();
case TARGET_OVER_SOURCE:
return targetDelta; // TODO Do we need to "recreate" the target revision as NEW?
case NONE:
return new ChangedInTargetAndDetachedInSourceConflict(targetDelta);
default:
throw new IllegalStateException("Illegal resolution preference: " + resolutionPreference);
}
}
@Override
public CDOID getID() {
return targetDelta.getID();
}
@Override
public CDOID getID() {
return sourceDelta.getID();
}