James Kingdon's post of 9 December is responsive, but facilities that return the current length/depth of a queue, the current size/node count of a binary-search tree, etc., etc., do not really require detailed individual justification.
They should always be provided.
Failure to do so ensures the encapsulation of a facility will be breached repeatedly by users trying to extract this datum from a control block (where it should be available) or determine it by traversing , here, the queue.
The absence of a query facility for MQJMS is, to put the matter brutally, a design defect.
John Gilmore
SystemCraft LLC
The opinions expressed above are mine alone. In particular, they are not necessarily shared by my company or its clients.
SystemCraft LLC
The opinions expressed above are mine alone. In particular, they are not necessarily shared by my company or its clients.
