/**
* Commit changed of the objects of the class type in the change set. This allows for the order of
* the classes to be processed optimally.
*/
protected void commitChangedObjectsForClassWithChangeSet(
UnitOfWorkChangeSet uowChangeSet, Class theClass) {
Map<ObjectChangeSet, ObjectChangeSet> objectChangesList =
uowChangeSet.getObjectChanges().get(theClass);
if (objectChangesList != null) { // may be no changes for that class type.
ClassDescriptor descriptor = null;
AbstractSession session = getSession();
Collection<ObjectChangeSet> changes = objectChangesList.values();
if (((UnitOfWorkImpl) session).shouldOrderUpdates()) {
changes = new ArrayList(objectChangesList.values());
Collections.sort((List) changes);
}
for (ObjectChangeSet changeSetToWrite : changes) {
Object objectToWrite = changeSetToWrite.getUnitOfWorkClone();
if (descriptor == null) {
descriptor = session.getDescriptor(objectToWrite);
}
if (!isProcessedCommit(objectToWrite)) {
// Commit and resume on failure can cause a new change set to be in existing, so need to
// check here.
WriteObjectQuery commitQuery = null;
if (changeSetToWrite.isNew()) {
commitQuery = new InsertObjectQuery();
} else {
commitQuery = new UpdateObjectQuery();
}
commitQuery.setIsExecutionClone(true);
commitQuery.setDescriptor(descriptor);
commitQuery.setObjectChangeSet(changeSetToWrite);
commitQuery.setObject(objectToWrite);
commitQuery.cascadeOnlyDependentParts();
// removed checking session type to set cascade level
// will always be a unitOfWork so we need to cascade dependent parts
session.executeQuery(commitQuery);
}
}
}
}
/**
* Commit all of the objects as a single transaction. This should commit the object in the correct
* order to maintain referential integrity.
*/
public void commitAllObjectsWithChangeSet(UnitOfWorkChangeSet uowChangeSet)
throws RuntimeException, DatabaseException, OptimisticLockException {
reinitialize();
this.isActive = true;
this.session.beginTransaction();
try {
// PERF: if the number of classes in the project is large this loop can be a perf issue.
// If only one class types changed, then avoid loop.
if ((uowChangeSet.getObjectChanges().size() + uowChangeSet.getNewObjectChangeSets().size())
<= 1) {
Iterator<Class> classes = uowChangeSet.getNewObjectChangeSets().keySet().iterator();
if (classes.hasNext()) {
Class theClass = classes.next();
commitNewObjectsForClassWithChangeSet(uowChangeSet, theClass);
}
classes = uowChangeSet.getObjectChanges().keySet().iterator();
if (classes.hasNext()) {
Class theClass = classes.next();
commitChangedObjectsForClassWithChangeSet(uowChangeSet, theClass);
}
} else {
// The commit order is all of the classes ordered by dependencies, this is done for deadlock
// avoidance.
List commitOrder = getCommitOrder();
int size = commitOrder.size();
for (int index = 0; index < size; index++) {
Class theClass = (Class) commitOrder.get(index);
commitAllObjectsForClassWithChangeSet(uowChangeSet, theClass);
}
}
if (hasDeferredCalls()) {
// Perform all batched up calls, done to avoid dependencies.
for (List<Object[]> calls : this.deferredCalls.values()) {
for (Object[] argument : calls) {
((DatabaseQueryMechanism) argument[1])
.executeDeferredCall((DatasourceCall) argument[0]);
}
}
}
if (hasDataModifications()) {
// Perform all batched up data modifications, done to avoid dependencies.
for (Map.Entry<DatabaseMapping, List<Object[]>> entry : this.dataModifications.entrySet()) {
List<Object[]> events = entry.getValue();
int size = events.size();
DatabaseMapping mapping = entry.getKey();
for (int index = 0; index < size; index++) {
Object[] event = events.get(index);
mapping.performDataModificationEvent(event, getSession());
}
}
}
if (hasObjectsToDelete()) {
// These are orphaned objects, to be deleted from private ownership updates.
// TODO: These should be added to the unit of work deleted so they are deleted in the
// correct order.
List objects = getObjectsToDelete();
int size = objects.size();
reinitialize();
for (int index = 0; index < size; index++) {
this.session.deleteObject(objects.get(index));
}
}
this.session.commitTransaction();
} catch (RuntimeException exception) {
this.session.rollbackTransaction();
throw exception;
} finally {
reinitialize();
this.isActive = false;
}
}