I'm sorry if this question could sound stupid, but ...
supposing to have an xProperty and an InvalidationListener L, after
for(i=0 to 10)
when xProperty will be invalid, L will be executed once or ten times?
thank for sharing you knowledge!
According to the javadocs for Observable, ten times:
void addListener(InvalidationListener listener)
Adds an InvalidationListener which will be notified whenever the Observable becomes invalid. If the same listener is added more than once, then it will be notified more than once.