Value List Handler

[Siddhartha G Baruah]

I am planning to use a Value List handler for the search results. I am little confused about what details should i show in Class and Component diagram? Should i show the ValueList and the value Object too? Or just VLH (as SFSB) in Business tier and DAO in the integration tier with other presentation tier component are sufficient?

Thanks in advance.

[Sharma Ashutosh]

Are you using JEE5 and JPA?
If yes-VLH comes automatically with EntityManager and you don't have to specify/use it explicitly.

[Siddhartha G Baruah]

Thanks Ashutosh. VLH comes automatically with Entitymanager (JEE)? Oh, I didn't know that. But can it handle large searches like VLH and won't it use the finder method against of which VLH is born?

I decided to include the list and VO with VLH. Initially i was inclined to include more business related component than framework related and got this idea of not including the list and VO.

Thanks.

[Sharma Ashutosh]

But can it handle large searches like VLH and won't it use the finder method against of which VLH is born?

I think it can but not 100% sure.

[Antoni Mysliborski]

EntityManager has methods to execute arbitrary queries and supports pagination. So VLH is no longer needed.