/**
* Constructor, using the ObjectProvider of the "owner" and the field name.
*
* @param op The owner ObjectProvider
* @param mmd Metadata for the member
*/
public TreeSet(ObjectProvider op, AbstractMemberMetaData mmd) {
super(op, mmd);
ExecutionContext ec = op.getExecutionContext();
allowNulls = SCOUtils.allowNullsInContainer(allowNulls, mmd);
queued = ec.isDelayDatastoreOperationsEnabled();
useCache = SCOUtils.useContainerCache(op, mmd);
if (!SCOUtils.collectionHasSerialisedElements(mmd)
&& mmd.getPersistenceModifier() == FieldPersistenceModifier.PERSISTENT) {
ClassLoaderResolver clr = ec.getClassLoaderResolver();
this.backingStore =
(SetStore)
((BackedSCOStoreManager) ec.getStoreManager())
.getBackingStoreForField(clr, mmd, java.util.TreeSet.class);
}
// Set up our delegate, using a suitable comparator
Comparator comparator =
SCOUtils.getComparator(mmd, op.getExecutionContext().getClassLoaderResolver());
if (comparator != null) {
this.delegate = new java.util.TreeSet(comparator);
} else {
this.delegate = new java.util.TreeSet();
}
if (NucleusLogger.PERSISTENCE.isDebugEnabled()) {
NucleusLogger.PERSISTENCE.debug(
SCOUtils.getContainerInfoMessage(
op,
ownerMmd.getName(),
this,
useCache,
queued,
allowNulls,
SCOUtils.useCachedLazyLoading(op, ownerMmd)));
}
}
/**
* Accessor for the current DatastoreService for this ExecutionContext. Each PM/EM has its own
* DatastoreService.
*
* @param ec ExecutionContext
* @return The DatastoreService
*/
public DatastoreService getDatastoreService(ExecutionContext ec) {
ManagedConnection mconn = ec.getStoreManager().getConnection(ec);
return ((EmulatedXAResource) mconn.getXAResource()).getDatastoreService();
}
/**
* Accessor for the current DatastoreTransaction for this ExecutionContext. Each PM/EM has its own
* DatastoreService, and consequently can have a current DatastoreTransaction.
*
* @param ec ExecutionContext
* @return The DatastoreTransaction if active, or null
*/
public DatastoreTransaction getDatastoreTransaction(ExecutionContext ec) {
ManagedConnection mconn = ec.getStoreManager().getConnection(ec);
return ((EmulatedXAResource) mconn.getXAResource()).getCurrentTransaction();
}
public StoreManager getStoreManager() {
return (myEC.getNucleusContext().isFederated()
? ((FederatedStoreManager) myEC.getStoreManager()).getStoreManagerForClass(cmd)
: myEC.getStoreManager());
}