Design Patterns clarification needed..Please Help.

[Deepak Lal]

Hi Java Experts and Moderators of the forum,
I have the below queries.Please clarify the below for me


1> what are the difference's between session facade and business delegate design pattern?

2> when do we opt(go in for) for business delegate design pattern?

3> when do we opt(go in for) for session facade design pattern ?

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Deepak Lal

[Paul Sturrock]

Have you had a read through the documentation Sun provides about patterns? Its a pretty good place to start.

[Goutham Pallipati]

A simple answer would be

Session facade Pattern applies to Entity beans you write a session bean and give access to session bean for performing DB operation instead of Entity bean directly because exposing entity beans is not recommended as they represent DB there would not be any control over the operation from client.

Business Delegate pattern is when you want to do multiple tasks as a part of service you can have a delegated bean(can be event a normal Java Bean) for each task and call the respective task on each delegate this will keep the Main session bean simple and the main bean would not be doing all the complex logic.

[Deepak Lal]

hi,
any more differences.??

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Deepak Lal

[Jimmy Clark]

Deepak Lal, when you compare what you have learned to the information shared in this post, what differences have you discovered? Can you provide a definition for the Business Delegate design pattern? If so, please share.