[birt-dev] Checkin: Fix 140767: Enhance the PreparedJointDataSourceQuery

["Xiaofeng Zhang" <xiaofeng.zhang@xxxxxxxxxxx>]

- Summary:
Fix bug 140767

- Bugzilla Bug (s) Resolved:
Bug 140767: Enhance the PreparedJointDataSourceQuery, etc.

- Description:
Split initialize() into two methods: initialize() and initializeResultClass().

The method initializeResultClass() only initialize the resultClass. So it is lightweight.

 

The method createOdiQuery() don't call initializeResultClass().

The heavyweight method initializeResultClass() won't be called until executeOdiQuery().

New implementation has better performance.

 

- Tests Description:
Junit Test/Manual Test

- Notes to Build Team:
N/A

- Notes to Developers:
N/A

- Notes to QA:  

N/A

 

- Notes to Documentation:  
N/A

 

 - Files Edited:
/org/eclipse/birt/data/engine/impl/PreparedJointDataSourceQuery.java 

 

- Files Added:

 

- Files Deleted: