ObjectNode::upperBound : ValueSpecification [0..1] The maximum number of tokens that may be held by this ObjectNode. Tokens cannot flow into the ObjectNode if the upperBound is reached. If no upperBound is specified, then there is no limit on how many ... Source Unified Modeling Language 2.5.1
If the upperBound evaluates to *, then there is no limit on the number of tokens the ObjectNode may hold. Source Unified Modeling Language 2.5.1
If the removal of one or more tokens brings the number of tokens held below the evaluated upperBound, then the ObjectNode may accept any pending offers up to the limit of the upperBound. Source Unified Modeling Language 2.5.1
If the number of tokens already held by the ObjectNode is greater than or equal to the evaluated upperBound, then the ObjectNode shall not accept any further tokens until some of the ones it is holding are removed. Source Unified Modeling Language 2.5.1
An ObjectNode may not contain more tokens than specified by its upperBound, if any. If an ObjectNode has an upperBound, then this ValueSpecification shall evaluate to an UnlimitedNatural value. The upperBound is evaluated each time a token is offered ... Source Unified Modeling Language 2.5.1
