/**
* Informs all registered objects an association has started.
*
* <p>The Control object which represents the transaction is given.
*
* <p>A flag is passed indicating whether this association is as a result of a Current.begin
* operation.
*
* @param control The transaction whose association has started.
* @param begin Indicates if this is a begin rather than a resume.
* @return
* @see
*/
void distributeStart(ControlImpl control, boolean begin) {
// Determine the Coordinator for the transaction.
org.omg.CosTransactions.Coordinator coord = null;
try {
coord = control.get_coordinator();
} catch (Unavailable exc) {
}
// Browse through the set, telling each that association is starting.
if (coord != null) {
for (int i = 0; i < registered.size(); i++) {
StaticResource resource = (StaticResource) registered.elementAt(i);
try {
resource.startAssociation(coord, begin);
} catch (INVALID_TRANSACTION exc) {
// Catch INVALID_TRANSACTION exception, and allow it to
// percolate. We need to inform all previously called
// StaticResources that the association has ended
// immediately.
for (int j = i - 1; j >= 0; j--) {
((StaticResource) registered.elementAt(j)).endAssociation(coord, begin);
}
throw (INVALID_TRANSACTION) exc.fillInStackTrace();
} catch (Throwable exc) {
// discard any other exception
}
}
}
}
/**
* Informs all registered StaticResource objects that a thread association has ended.
*
* <p>The Control object representing the transaction is given.
*
* <p>A flag is passed indicating whether this association is as a result of the transaction
* completing.
*
* @param control The transaction whose association has ended.
* @param complete Indicates that this is a commit/rollback rather than a suspend.
* @return
* @see
*/
void distributeEnd(ControlImpl control, boolean complete) {
// Determine the Coordinator for the transaction.
org.omg.CosTransactions.Coordinator coord = null;
try {
coord = control.get_coordinator();
} catch (Unavailable exc) {
}
// Browse through the set, telling each that the association is ending.
if (coord != null) {
for (int i = 0; i < registered.size(); i++) {
StaticResource resource = (StaticResource) registered.elementAt(i);
try {
resource.endAssociation(coord, complete);
} catch (Throwable e) {
// Discard any exception.
}
}
}
}
/**
* Adds the given StaticResource object to the set of those informed of thread association
* changes.
*
* <p>If there is a current thread association, then the added StaticResource is called
* immediately so that it is aware of the association.
*
* @param obj The StaticResource to be added.
* @return
* @see
*/
void addStatic(StaticResource obj) {
registered.addElement(obj);
// Determine whether there is a current association.
try {
org.omg.CosTransactions.Coordinator coord = CurrentTransaction.getCurrentCoordinator();
// Tell the StaticResource that the association has started.
// Pretend that it is a begin association, as the
// StaticResource has not seen the transaction before.
if (coord != null) {
obj.startAssociation(coord, true);
}
} catch (Throwable exc) {
// Discard any exception.
}
}
/**
* Removes the given StaticResource object from the set of those informed of thread association
* changes.
*
* @param obj The StaticResource to be removed.
* @return Indicates success of the operation.
* @see
*/
boolean removeStatic(StaticResource obj) {
boolean result = registered.removeElement(obj);
return result;
}