OraAQ Object

See Also

Properties

Methods

Examples

Description

An OraAQ object is instantiated by invoking the CreateAQ method of the OraDatabase interface. It represents a queue that is present in the database.

Remarks

Oracle Objects for OLE provides interfaces for accessing Oracle’s Advanced Queuing (AQ) Feature. It makes AQ accessible from popular COM-based development environments such as Visual Basic. For a detailed description of Oracle AQ, see the Oracle9i Application Developer's Guide - Advanced Queuing.

The OraAQ Automation interface provides methods for enqueuing and dequeuing messages (OraAQMsg). It also provides a method for monitoring queues for message arrivals.

Client applications provide a Dispatch interface to the monitor. The monitor checks the queue for messages which meet the application criteria. It then invokes the NotifyMe method of the Dispatch interface when these messages are dequeued.

The following diagram illustrates the OO4O AQ Automation objects and their properties.

Text description of the illustration o4o00016.gif

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