Very cool. I checked it out, but to be honest I won't have time to look at it till next week (book deadline).
Thanks Joshua
Joshua Davis wrote:
I've managed to achieve a small success, in that I've been able to execute the following with the new AST based QueryTranslator:
Session s = openSession(); Iterator iter = s.iterate("from org.hibernate.test.Foo"); int count = 0; while (iter.hasNext()) { ... }
Thanks to Gavin for giving me a few tips about the existing QueryTranslator (well, it's QueryTranslatorImpl in my branch ;) ). Here are a few design decisions that I made along the way:
* Made QueryTranslator an interface, and split out the 'query splitter'. We can deal with that one later. * A system property drives which implementation of QueryTranslator will be used, this has been very helpful in comparing the two implementations while unit testing. * It's still a three pass design: syntax analysis, semantic analysis, code generation. * Added a new token to the SQL output tree, which is passed through the code generator without modification. * Made the 'loader' part of QueryTranslator a delegate to separate the concerns.
There's still a bunch of clean up to do, as there was a good amount of trial and error coding and debugger tracing required for me to understand some of the data structures needed by the callers.
Max & Gavin,
You guys should be able to see it in my CVS repository now.
Josh
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Joshua Davis
Sent: Sunday, January 18, 2004 11:36 AM
To: 'Max Rydahl Andersen'
Cc: [EMAIL PROTECTED]
Subject: RE: [Hibernate] AST driven QueryTranslator
Sorry, I've been a bit busy at work. :-/ I should be able to get back to the new QueryTranslator sometime this coming week.
Josh
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Max Rydahl Andersen
Sent: Saturday, January 17, 2004 7:56 PM
To: Joshua Davis
Cc: [EMAIL PROTECTED]
Subject: Re: [Hibernate] AST driven QueryTranslator
Joshua Davis wrote:
Well, it's checked in but it doesn't work... yet.
Any news ? ;)
/max
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