public void decrement (int steps)

Attempts to decrement the value factory by the given number of steps, by calling the SpinnerValueFactory.decrement(int) method and forwarding the steps argument to it. If the value factory is null, an IllegalStateException is thrown.

Parameters:
steps    The number of decrements that should be performed on the value.

Exceptions:
IllegalStateException    if the value factory returned by calling getValueFactory() is null.