'''Intent:''' Return control immediately, with appropriate indication, if an object is invoked when it is not in an appropriate state to execute the method.

In java, one might consider throwing a java.lang.IllegalStateException (this is an unchecked exception, which might be good or bad).


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''I do not see the connection to ReadWriteLock! (reference in "See also" below)?''

	 :	''One way of implementing BalkingPattern would be to attempt to get a Write lock, with a timeout.  If getting the lock times out, it is assumed the object is not in an appropriate state to execute the method.''
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'''See also:''' LockPattern, GuardedSuspension, SpinLock
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CategoryPattern | CategoryBehavioralPatterns | CategoryConcurrencyPatterns