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Re: [eclipselink-dev] SessionEventListener question

Hi Dennis,

Our session events are synchronous. They allow you to do things like query and the operation that causes the event will not proceed until you return from the event.


On 23/04/2013 10:24 PM, Dennis Fuglsang wrote:
I have a use case that I believe can be handled through a custom
SessionEventListener but I have a few questions concerning the possible
implementation.   In the use case, before certain objects in my DB are deleted I
need to execute a number of queries against that DB to acquire related object
data.   If I listen for PostCalculateUnitOfWorkChangeSet events will I be able
to query for the related data before the delete transaction commits?   I assume
that these are asynchronous operations and that EclipseLink would proceed and
commit the transaction, possibly while I am still processing the event and
before I complete gathering my related data.   Is that correct?

Any help or suggestions you can provide would be greatly appreciated.


Dennis Fuglsang

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