8.8.2 In the Case of Message-driven Bean (EJB2.0)

This subsection describes the trace collection points of a Message-driven Bean (EJB2.0), and also the trace information that can be collected.

Organization of this subsection

(1) Trace collection points and PRF trace collection levels

The following table describes the event IDs, trace collection points, and PRF trace collection levels.

Table 8‒24: Details of trace collection points in a Message-driven Bean (EJB2.0)
Event ID	No. in the figure^#	Trace acquisition points	Level
0x8425	1	When the message processing in the EJB container starts	A
0x8426	4	When the message processing in the EJB container ends	A
0x8427	2	Immediately before the EJB container call backs the `onMessage` method of the Message-driven Bean	B
0x8428	3	Immediately after returning from the callback of the `onMessage` method of the Message-driven Bean	B

Legend:

A: Standard

B: Advanced

#

Corresponds to the numbers in Figure 8-18.

The following figure shows the trace collection points in a Message-driven Bean (EJB2.0).

Figure 8‒18: Trace collection points of a Message-driven Bean (EJB2.0)

The following table describes the trace information that can be collected in a Message-driven Bean (EJB2.0).

Table 8‒25: Trace information that can be collected in a Message-driven Bean (EJB2.0)
No. in the figure^#	Event ID	Level	Information that you can acquire
No. in the figure^#	Event ID	Level	Interface name	Operation name	Optional
1	0x8425	A	Bean name	--	--
2	0x8427	B	--	--	--
3	0x8428	B	--	--	When normal: `Entrance-time` For an exception: `Entrance-time exception-name`
4	0x8426	A	Bean name	--

Legend:

A: Standard

B: Advanced

--: Not applicable

#

Corresponds to the numbers in Figure 8-18.