/** Restores the delegation for the entire chain. */
private void clearXid() {
_xid = null;
UserPoolItem shareHead = _shareHead;
_shareHead = null;
ManagedPoolItem xaPtr = _xaNext;
_xaHead = null;
_xaNext = null;
UserPoolItem assignedUserItem = null;
for (UserPoolItem ptr = shareHead; ptr != null; ptr = ptr.getShareNext()) {
if (ptr.getOwnPoolItem() == this) {
assignedUserItem = ptr;
break;
}
}
for (UserPoolItem ptr = shareHead; ptr != null; ptr = ptr.getShareNext()) {
if (assignedUserItem == null && ptr.getOwnPoolItem() == null) {
ptr.associatePoolItem(this);
assignedUserItem = ptr;
}
try {
ptr.reassociatePoolItem();
} catch (Throwable e) {
log.log(Level.WARNING, e.toString(), e);
}
}
while (xaPtr != null) {
ManagedPoolItem next = xaPtr._xaNext;
xaPtr._xaNext = null;
xaPtr._xaHead = null;
xaPtr.clearXid();
xaPtr = next;
}
if (assignedUserItem != null) {
// _shareHead = assignedUserItem;
// _shareHead.setShareNext(null);
} else if (_hasConnectionError) {
destroy();
} else {
toIdle();
}
}
/** Try to share the connection. */
boolean share(UserPoolItem userPoolItem) {
if (this == userPoolItem.getOwnPoolItem()) return true;
else if (_mConn == null) // already closed
return false;
else if (!_cm.isShareable()) // not shareable
return false;
else if (_mcf != userPoolItem.getManagedConnectionFactory()) return false;
else if (_subject != userPoolItem.getSubject()) return false;
else if (_requestInfo != userPoolItem.getInfo()) return false;
else if (_hasConnectionError) // had a fatal error
return false;
// skip for now
if (true) return false;
userPoolItem.associate(this, _mcf, _subject, _requestInfo);
return true;
}
