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From "Xibin Zeng" <>
Subject RE: [jira] Assigned: (BEEHIVE-1051) Control Interceptor SPI missing throwable for event dispatching
Date Thu, 26 Jan 2006 20:48:25 GMT
Ken -

I need to take my kid to a Dr's appt. this afternoon and will need to
leave shortly. I will finish verifying it tonight so you can commit the
change tomorrow morning.

Jim - sorry for the late notice; do you think this change can make the
load that you are making?


-----Original Message-----
From: Kenneth Tam (JIRA) [] 
Sent: Thursday, January 26, 2006 1:41 PM
To: Xibin Zeng
Subject: [jira] Assigned: (BEEHIVE-1051) Control Interceptor SPI missing
throwable for event dispatching

     [ ]

Kenneth Tam reassigned BEEHIVE-1051:

    Assign To: Kenneth Tam

> Control Interceptor SPI missing throwable for event dispatching
> ---------------------------------------------------------------
>          Key: BEEHIVE-1051
>          URL:
>      Project: Beehive
>         Type: Bug
>   Components: Controls
>     Versions: 1.0.1
>  Environment: ALL
>     Reporter: Xibin Zeng
>     Assignee: Kenneth Tam

> There are 4 methods on the
> For a control operation, preInvoke/postInvoke are called before and
after the operation, respectively. The postInvoke callback contains the
exception that the operation threw. For preEvent/postEvent, which is
called before and after control event dispatching, however, there is no
exception information passed to the postEvent callback. This looks
inconsistent to me.
> Imagine that you need to enforce J2EE transaction behaviors using
these interceptors (i.e. rollback a transaction in case of a system
exception), you will need to know what exception has been generated as
the result of invoking the operation or event callback. You could do
this for your control operations, but not event callbacks, since the
exception caught during event callback isn't passsed to the interceptor.
> In my humble opinion, I think we should make preInvoke/postinvoke and
preEvent/postEvent API's symmetric.

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