MQSeries Programming Patterns

5.6. Advance topics

Here we present some of the advance functionality of the C++ API, specifically the browsing messages functionality, and the inquiring and setting object attributes functionality.

5.6.1. Browsing messages on a queue

Messages on a queue can be browsed using an ImqQueue get method. The ImqQueue object must be open using the MQOO_BROWSE open option. That can be done using the setOpenOptions or the openFor method as described in “Opening queues” on page 139.

pqueue.setOpenOptions(MQOO_BROWSE);

or

pqueue.openFor(MQOO_BROWSE);

After the queue object has been opened for browse, the ImqQueue get method has to be called with an ImqGetMessageOptions object with the following options:

• MQGMO_BROWSE_FIRST message option, if you want ...