Holder

A holder is a component created by DispMan that lists the resource inventory for each resource dispenser.

The holder and resource dispenser communicate to request resources of a particular type. The follow relationships exist between the holder and resource dispenser:

• The holder requests a resources from the resource dispenser. The resource dispenser either returns an available resource or creates a new one.
• The holder notifies the resource dispenser that an application no longer needs a resource and returns it to the resource pool.
• The holder and the resource dispenser maintain the size of the resource pool.