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From "Marc Gabriel-Willem" <...@side.lu>
Subject Multiple queries using the same DB session !
Date Mon, 06 Oct 2008 10:03:55 GMT
Hello,

 

We are using Apache Cayenne as ORM in our new applications.

We would like to migrate a large existing one on Cayenne 2.0.x also,
without modifying the current DB schema if possible.

 

Currently, the application is accessing database through a JDBC
connection pool and performs wanted query.

Prior to execute queries, we have to set some context variables (so
bound variables to database session) 

(these values are used later on in the queries. Queries = views or
stored procedures)

 

In SQL Server, it can be done via a query doing a "set context_info
xxx".

In Oracle, it can be done via the "dbms_session.set_context" method.

 

We have seen that as long as connection pool context is not released we
use the same database session, so this mechanism works well.

 

How can we do the same with Cayenne? 

How being sure we do consecutive queries on the same DB session?

 

 

Thanks & regards

 

 

 

Marc GABRIEL-WILLEM

Java Consultant

EastNets(tm) LU

Route des Trois Cantons, 11

L-8399 WINDHOF

Luxembourg

 

Skype: eneumwillem

Email: mgw@side.lu

Fax: +32 (0)2 6560070

http://www.eastnets.com <http://www.eastnets.com/> 

 

 

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