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From "Daniel John Debrunner (JIRA)" <derby-...@db.apache.org>
Subject [jira] Created: (DERBY-1015) Define interface between network server and engine through Java interfaces.
Date Tue, 21 Feb 2006 17:35:57 GMT
Define interface between network server and engine through Java interfaces.
---------------------------------------------------------------------------

         Key: DERBY-1015
         URL: http://issues.apache.org/jira/browse/DERBY-1015
     Project: Derby
        Type: Improvement
  Components: JDBC  
    Reporter: Daniel John Debrunner
 Assigned to: Daniel John Debrunner 
     Fix For: 10.2.0.0


API between the network server and engine is not well defined, leading to inconsistent &
multiple ways of handling the different objects returned, such as reflection, explicit casting
etc. This in turn has lead to bugs such as DERBY-966 . DERBY-1005, and DERBY-1006, and access
to underlying objects by the application that should be hidden.

Define interfaces, such as EngineConnection, that both EmbedConnection and BrokeredConnection
implement. Thus the network server can rely on the fact that any connection it obtains will
implement EngineConnection, and call the required methods through that interface.

Most likely will need EngineConnection, EnginePreparedStatement and EngineResultSet.. These
interfaces would be internal to derby and not exposed to applications.


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