Database Software

I've seen references to the PL/SQL callback procedure needed for a queue notification registration but I see not documentation to the actual structure of this callback procedure. For example, what are the required parameters and what do those parameters do?

Here is the object used for defining the callback in the DBMS_AQ.REGISTER call but I see no documenation reference to what that callback procedure signature needs to be (at least not in the 10.2 docs)

TYPE SYS.AQ$_REG_INFO IS OBJECT (
name VARCHAR2(128),
namespace NUMBER,
callback VARCHAR2(4000),
context RAW(2000),
qosflags NUMBER,
timeout NUMBER);

Also, what is the "context" attribute. As per the documentation, it is as follows:

context: Specifies the context that is to be passed to the callback function

Hmmmm...ok...any more detail would be greatly appreciated.

blake

Blake.Politte@sce.com