/** Delete all of the objects with the matching class. */
public void deleteAllObjects(Class theClass, List objects, AbstractSession session) {
ClassDescriptor descriptor = null;
if (((UnitOfWorkImpl) session).shouldOrderUpdates()) { // bug 331064 - Sort the delete order
objects = sort(theClass, objects);
}
int size = objects.size();
for (int index = 0; index < size; index++) {
Object objectToDelete = objects.get(index);
if (objectToDelete.getClass() == theClass) {
if (descriptor == null) {
descriptor = session.getDescriptor(theClass);
}
// PERF: Get the descriptor query, to avoid extra query creation.
DeleteObjectQuery deleteQuery = descriptor.getQueryManager().getDeleteQuery();
if (deleteQuery == null) {
deleteQuery = new DeleteObjectQuery();
deleteQuery.setDescriptor(descriptor);
} else {
// Ensure original query has been prepared.
deleteQuery.checkPrepare(session, deleteQuery.getTranslationRow());
deleteQuery = (DeleteObjectQuery) deleteQuery.clone();
}
deleteQuery.setIsExecutionClone(true);
deleteQuery.setObject(objectToDelete);
session.executeQuery(deleteQuery);
}
}
}
/**
* delete all of the objects as a single transaction. This should delete the object in the correct
* order to maintain referential integrity.
*/
public void deleteAllObjects(List objects)
throws RuntimeException, DatabaseException, OptimisticLockException {
this.isActive = true;
AbstractSession session = getSession();
session.beginTransaction();
try {
// PERF: Optimize single object case.
if (objects.size() == 1) {
deleteAllObjects(objects.get(0).getClass(), objects, session);
} else {
List commitOrder = getCommitOrder();
for (int orderIndex = commitOrder.size() - 1; orderIndex >= 0; orderIndex--) {
Class theClass = (Class) commitOrder.get(orderIndex);
deleteAllObjects(theClass, objects, session);
}
}
session.commitTransaction();
} catch (RuntimeException exception) {
try {
session.rollbackTransaction();
} catch (Exception ignore) {
}
throw exception;
} finally {
reinitialize();
this.isActive = false;
}
}
/**
* Commit all 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 commitNewObjectsForClassWithChangeSet(
UnitOfWorkChangeSet uowChangeSet, Class theClass) {
Map<ObjectChangeSet, ObjectChangeSet> newObjectChangesList =
uowChangeSet.getNewObjectChangeSets().get(theClass);
if (newObjectChangesList != null) { // may be no changes for that class type.
AbstractSession session = getSession();
ClassDescriptor descriptor = session.getDescriptor(theClass);
List<ObjectChangeSet> newChangeSets = new ArrayList(newObjectChangesList.values());
int size = newChangeSets.size();
for (int index = 0; index < size; index++) {
ObjectChangeSet changeSetToWrite = newChangeSets.get(index);
Object objectToWrite = changeSetToWrite.getUnitOfWorkClone();
if (!isProcessedCommit(objectToWrite)) {
// PERF: Get the descriptor query, to avoid extra query creation.
InsertObjectQuery commitQuery = descriptor.getQueryManager().getInsertQuery();
if (commitQuery == null) {
commitQuery = new InsertObjectQuery();
commitQuery.setDescriptor(descriptor);
} else {
// Ensure original query has been prepared.
commitQuery.checkPrepare(session, commitQuery.getTranslationRow());
commitQuery = (InsertObjectQuery) commitQuery.clone();
}
commitQuery.setIsExecutionClone(true);
commitQuery.setObjectChangeSet(changeSetToWrite);
commitQuery.setObject(objectToWrite);
commitQuery.cascadeOnlyDependentParts();
commitQuery.setModifyRow(null);
session.executeQuery(commitQuery);
}
uowChangeSet.putNewObjectInChangesList(changeSetToWrite, session);
}
}
}
/**
* 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);
}
}
}
}
// bug 331064 - Sort the delete order based on PKs.
private List sort(Class theClass, List objects) {
ClassDescriptor descriptor = session.getDescriptor(theClass);
org.eclipse.persistence.internal.descriptors.ObjectBuilder objectBuilder =
descriptor.getObjectBuilder();
int size = objects.size();
TreeMap sortedObjects = new TreeMap();
for (int index = 0; index < size; index++) {
Object objectToDelete = objects.get(index);
if (objectToDelete.getClass() == theClass) {
sortedObjects.put(
objectBuilder.extractPrimaryKeyFromObject(objectToDelete, session), objectToDelete);
}
}
return new ArrayList(sortedObjects.values());
}