Hi, Neil. Thanks for the hint. I had read that page, and here are my thoughts: Castor JDO is not compliant to the spec, but it actually tries to cover the same functionality. Semantics in usage are quite similar: JDO PersistenceManagerFactor - Castor JDO JDO PersistenceManager - Castor Database JDO Instance - any Bean
So I estimated that using Castor like JDO should be quite easy. With a closer look now I see that differences are more than just a few class and method names, so I will have to give up the wish getting Castor fully JDO compliant. Agreed. But still Castor will have to do something about locking, right? Still there must be a decision when and what to update. So on what basis are those decisions made? Does the application have to control this? Hiran ----- Original Message ----- From: "Neil Aggarwal" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, February 25, 2003 6:03 PM Subject: Re: [castor-dev] JDO Compliance > Hiran: > > In case you did not realize it, I just wanted to let you know > that Castor JDO does not implement the JDO specification. > > You can see more info on this at: > http://castor.exolab.org/jdo-faq.html > > Thanks, > Neil > > -- > Neil Aggarwal > JAMM Consulting, Inc. (972) 612-6056, http://www.JAMMConsulting.com > Custom Internet Development Websites, Ecommerce, Java, databases > > > > -----Original Message----- > > From: Hiran Chaudhuri [mailto:[EMAIL PROTECTED] > > Sent: Tuesday, February 25, 2003 10:23 AM > > To: [EMAIL PROTECTED] > > Subject: [castor-dev] JDO Compliance > > > > > > Hi there. > > > > Trying to figure out how much Castor conforms to the JDO Specification I > > tried a little example. I created a table, filled that with data, > > created a > > little bean with some properties and mapped the table fields to that bean. > > Reading data works, I have not tried writing. > > > > But for writing, some questions arise: > > - How does Castor notice that I changed a property of a bean? JDO states > > that here should be a StateManager that knows about the > > clean/dirty state of > > an object, but I have not seen anything like that in Castor. > > - How and when are documents locked? Does Castor lock the data it reads? > > - If Castor does not know about the state of the data inside the > > bean, when > > and how often does it send the data back to the database? > > > > Hiran > > > > ----------------------------------------------------------- > > If you wish to unsubscribe from this mailing, send mail to > > [EMAIL PROTECTED] with a subject of: > > unsubscribe castor-dev > > ----------------------------------------------------------- > If you wish to unsubscribe from this mailing, send mail to > [EMAIL PROTECTED] with a subject of: > unsubscribe castor-dev > ----------------------------------------------------------- If you wish to unsubscribe from this mailing, send mail to [EMAIL PROTECTED] with a subject of: unsubscribe castor-dev
