One of the common exception that we face in ADF is :
" JBO-26030: Failed to lock the record, another user holds the lock "
A lot has been written and explained about this , In a simple implementation below is how i resolved this by overriding the lock () method in EntityImpl
Tries 3 times after a gap of 10 sec for trying to get the lock.
while ((++tries <= 3) && !islock)
{
try
{ super.lock(); islock = true; }
catch (AlreadyLockedException a)
{ try
{ Thread.sleep(10000); }catch (InterruptedException e){e.printStackTrace();}
}catch(RowInconsistentException e){
refresh(REFRESH_WITH_DB_ONLY_IF_UNCHANGED|REFRESH_CONTAINEES);
}
}
if (!islock) throw new AlreadyLockedException(new Exception());
More explanation can be found at :
https://blogs.oracle.com/onesizedoesntfitall/entry/the_case_of_the_phantom
