JBC does not acquite cluster-wide locks. These are only done when a tx is
committing.
Try this:
|
| boolean doSomething()
| {
| int X = -1;
| while (X == -1)
| {
| try
| {
| X = getX();
| }
| catch (RollbackException e)
| {
| X = -1;
| }
| }
| return X;
| }
|
| int getX()
| {
| // start a new tx here.
| Integer X = (Integer) cache.get(fqn, key);
| X++;
| cache.put(fqn, key, X);
| // commit tx here.
| return X;
| }
|
|
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