Thanks for all of the information. No it's not a feature I want, I just wanted to confirm that it was loaded at once.
Thanks, John -----Original Message----- From: Stephen Bash [mailto:[EMAIL PROTECTED] Sent: Thursday, March 02, 2006 7:19 PM To: [email protected] Subject: Re: [castor-user] Loading of XML John- Just to add some strength to Ralf's claim, I can say pretty confidently all the objects are created in memory at unmarshal time. By default Castor creates a SAX2 parser (usually Xerces), and registers itself as the appropriate event listeners. Then, as the parser fires start element events, Castor finds the ClassDescriptor associated with the XML element and creates the object. It then continues to parse the child elements and populate the parent object's fields with the newly created child objects. (Thinking out loud now...) Lazy loading might be an interesting concept, though applications that lend themselves to that processing may do better in the JDO world of Castor. If the whole point is to save memory, we wouldn't want to create the DOM tree and unmarshal objects on demand, so we'd want some kind of XPath/XQuery implementation that would allow quick small slices of the file to be extracted on demand and unmarshalled... That would be cool, and it is quickly approaching something like eXist (really start to see the synergies between JDO and XML there). In anycase, if this is a feature you're interested in, you can always create an enhancement request at http://jira.codehaus.org/browse/CASTOR Let us know if you have any more questions. Stephen On 3/2/06, Ralf Joachim <[EMAIL PROTECTED]> wrote: > Hi John, > > as far as I know the XML side of Castor it loades the whole document > into memory at once. There are possibilities to unmarshal a document > step by step but this requires some extra work from your side. > > Regards > Ralf > > > Childress, John (MLCI) schrieb: > > Dumb question, I'm been using Castor for about four years now, love it. > > A team member asked me if Castor "lazy loads" the xml? Does it load > > the document into memory when it's first marshaled? Or only when a > > specific "element" is first referenced? > > > > Thanks, > > > > John > > > > John Childress > > (713) 544-5946 (work) > > (832) 309-7358 (cell) > > [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > > > > -------------------------------------------------------------------- > > ---- If you are not an intended recipient of this e-mail, please > > notify the sender, delete it and do not read, act upon, print, > > disclose, copy, retain or redistribute it. Click here > > <http://www.ml.com/email_terms/>for important additional terms relating > > to this e-mail. http://www.ml.com/email_terms/ > > -------------------------------------------------------------------- > > ---- > > ------------------------------------------------- > If you wish to unsubscribe from this list, please send an empty > message to the following address: > > [EMAIL PROTECTED] > ------------------------------------------------- > > -------------------------------------------------------- If you are not an intended recipient of this e-mail, please notify the sender, delete it and do not read, act upon, print, disclose, copy, retain or redistribute it. Click here for important additional terms relating to this e-mail. http://www.ml.com/email_terms/ -------------------------------------------------------- ------------------------------------------------- If you wish to unsubscribe from this list, please send an empty message to the following address: [EMAIL PROTECTED] -------------------------------------------------
