WorklistManager in real life?

Hi !
After a day of kicking and screaming, I am still unable to get the WorkListManager BPEL process shipped in the samples/util directory to work.
Can anyone give an official statement whether this is supported?
Thanks,
Tal Brown
EMEA Support

Andrew,
First you need to to answer - what do you want to do with flash recovery area (FRA). FRA may or may not be used with another technology - flashback database.
(i) are you using flashback database (+database+, not flashback table, or flashback query), i.e. have you turned on the flashback of the database? If so, then you have to use FRA because that's where the FB logs go.
(ii) if you are not using flashback database, you can but do not need to use FRA. FRA can be used for database backups, archived logs and archived log backups.
I strongly suggest not using FRA for archived logs. As a corollary, I strongly suggest seprating backups and archived logs on separate filesystems (and underlying disks), if possible. Remember, you can always recreate a lost backup by applying archived logs; but never a lost archived log. If you have lost log#345 but have all others from #346 to #1000, it does not matter; the recovery will stop at 345. So, imagine putting both backups and archived logs on a single point of failure - you lost both of them.
Therefore, I use different locations for backups and archived logs, somewhat defeating the purpose of FRA where both are supposed to go.
Caveat: I do this for all important databases. If a database is not that important, well ....
Hope this helps.
Arup

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    1. 'There is no substitute for experience.' So would it be
    possible that you share your experiences by providing an example
    of real life application of the Singleton pattern.
    2. 1M thanks for all.

    I'll give you two Real Life examples in a computer environment:
    You can use the singleton pattern wherever you have to share one device (e.g. a DB connection, a serial port or a file access) among multiple instances of a class. So the singleton has the job to control the access to a limited resource.
    You can use the singleton pattern also as "Yellow Pages". Assuming you plan a big project with a lot of modules and you don't know at developing time how much and what kind of modules will be on your destination system. So you can use the singleton pattern in a, let's say "Library"-class. Assume that each module will be registered by that library, thus it is possible to perform requests for modules (maybe also by other modules) to that library. The library should exist on a system only once.
    I hope these examples helps.
    J�rg

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