tibemsMsg_GetPriority

Function

Purpose

Get the priority header from a message.

C Declaration

tibems_status tibemsMsg_GetPriority(
    tibemsMsg message,
    tibems_int* value );

COBOL Call

CALL "tibemsMsg_GetPriority"
     USING BY VALUE message,
           BY REFERENCE value,
           RETURNING tibems-status
END-CALL.
Note: message has usage pointer.

Parameters

Parameter Description
message Get the priority from this message.
value Store the priority.

Remarks

Sending calls record the priority of a message in this header, based on either a property of the producer, or on a parameter to the send call.

The JMS specification defines ten levels of priority value, from zero (lowest priority) to 9 (highest priority). The specification suggests that clients consider 0–4 as gradations of normal priority, and priorities 5–9 as gradations of expedited priority.

Priority affects the order in which the server delivers messages to consumers (higher values first). The JMS specification does not require all providers to implement priority ordering of messages. (EMS supports priorities, but other JMS providers might not.)

See Also

tibemsMsg_SetPriority

tibemsMsgProducer_Send

tibemsMsgProducer_SetPriority