/** Finds the pool item joined to this one. return null. */
ManagedPoolItem findJoin(UserTransactionImpl uTrans, ManagedPoolItem item) {
if (!uTrans.isActive()) return null;
ArrayList<ManagedXAResource> poolItems = uTrans.getXaResources();
int length = poolItems.size();
for (int i = 0; i < length; i++) {
ManagedXAResource resource = poolItems.get(i);
if (resource instanceof ManagedPoolItem) {
ManagedPoolItem poolItem = (ManagedPoolItem) resource;
if (poolItem.isJoin(item)) return poolItem;
}
}
return null;
}
/** Allocates a resource matching the parameters. If none matches, return null. */
private UserPoolItem allocateShared(
UserTransactionImpl transaction,
ManagedConnectionFactory mcf,
Subject subject,
ConnectionRequestInfo info) {
if (!transaction.isActive()) return null;
ArrayList<ManagedXAResource> poolItems = transaction.getXaResources();
int length = poolItems.size();
for (int i = 0; i < length; i++) {
ManagedXAResource xaResource = poolItems.get(i);
if (xaResource instanceof ManagedPoolItem) {
ManagedPoolItem poolItem = (ManagedPoolItem) xaResource;
UserPoolItem item = poolItem.allocateXA(mcf, subject, info);
if (item != null) return item;
}
}
return null;
}
