A little more progress in the last few days: * Cleaned up the code, placing the query information in the AST, where it belongs. * Changed the HQL parser so it produces trees with the FROM first, so processing the SELECT (projection list) will be easier. Changed the other phases to accommodate this. * Began working on a simple 'scalar' query: "select foo.key from org.hibernate.test.Foo as foo"
> -----Original Message----- > From: Gavin King [mailto:[EMAIL PROTECTED] > Sent: Thursday, January 29, 2004 10:53 AM > To: Joshua Davis > Cc: [EMAIL PROTECTED] > Subject: Re: [Hibernate] AST driven QueryTranslator > > > 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 > >>> > >>> > >>>------------------------------------------------------- > >>>The SF.Net email is sponsored by EclipseCon 2004 > >>>Premiere Conference on Open Tools Development and > Integration See the > >>>breadth of Eclipse activity. February 3-5 in Anaheim, CA. > >>>http://www.eclipsecon.org/osdn > >>>_______________________________________________ > >>>hibernate-devel mailing list [EMAIL PROTECTED] > >>>https://lists.sourceforge.net/lists/listinfo/hibernate-devel > >>> > >> > >> > >> > >> > >>------------------------------------------------------- > >>The SF.Net email is sponsored by EclipseCon 2004 > >>Premiere Conference on Open Tools Development and > Integration See the > >>breadth of Eclipse activity. February 3-5 in Anaheim, CA. > >>http://www.eclipsecon.org/osdn > >>_______________________________________________ > >>hibernate-devel mailing list [EMAIL PROTECTED] > >>https://lists.sourceforge.net/lists/listinfo/hibernate-devel > >> > > > > > > > > > > > > ------------------------------------------------------- > > The SF.Net email is sponsored by EclipseCon 2004 > > Premiere Conference on Open Tools Development and > Integration See the > > breadth of Eclipse activity. February 3-5 in Anaheim, CA. > > http://www.eclipsecon.org/osdn > > _______________________________________________ > > hibernate-devel mailing list [EMAIL PROTECTED] > > https://lists.sourceforge.net/lists/listinfo/hibernate-devel > > -- > Gavin King > JBoss Group > +61 410534454 > http://hibernate.org > ------------------------------------------------------- The SF.Net email is sponsored by EclipseCon 2004 Premiere Conference on Open Tools Development and Integration See the breadth of Eclipse activity. February 3-5 in Anaheim, CA. http://www.eclipsecon.org/osdn _______________________________________________ hibernate-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/hibernate-devel
