Re: [castor-dev] Castor JDO & Multithreading

[Harshal D]

I agree,

The problem with that is though - every EJB instance will have a JDO instance.

 

Is that acceptable - are'nt the JDO configs supposed to be global? Just curious..

 Conor Allen <[EMAIL PROTECTED]> wrote:

When used in JBoss, the castor JDO object is bound into JNDI and retrieved via a lookup.

 

I imagine it is intended to be used as you would a JDBC  DataSource � retrieve the JDO object in the ejbCreate method and cache it there � and retrieve a new database object within the context of a ejb method invocation using the cached JDO instance.

 

I�m just guessing here though.

 

Conor

 

-----Original Message-----
From: Harshal D [mailto:[EMAIL PROTECTED]]
Sent: 07 February 2003 07:14
To: [EMAIL PROTECTED]
Subject: [castor-dev] Castor JDO & Multithreading

 

Can some one please point me to some links / docs on best practices about JDO calls from EJBS?

Specifically  I am looking for options on using the JDO class from Session bean:

 

1>    Should one instantiate the JDO from inside an SB (I guess silly options , but want to add it to the list)

2>    Should JDO �global variable be accessed inside SB and every SB create DB (jdo.getDatabase())?

3> Should one create a wrapper class that does all of it � exposes only business APIs and make calls to this from SB? In this case will the wrapper class be static?

THANKS

 

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