I have thought about it, but not enough to write it yet. The fix for this is tied up in support for not null foreign keys, and the biggest problem in not null foreign keys is the insert/delete ordering logic. Effectively we need to build a directed dependency graph and then figure out the order for the inserts. I haven't thought about issues like what to do when there is a circuit in the graph.
I could use some help in spec'n out the logic for the ordering code. The actual programming will be easy once the logic is determined (programming is always the easiest step). -dain Jerry Smith wrote: > Ok, thanks for the clarification Dain. Are we looking at 3.0.x or 3.1 for > this feature? Or have you even thought about it much yet? Thanks again! > > -----Original Message----- > From: Dain Sundstrom [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, June 25, 2002 11:35 AM > To: [EMAIL PROTECTED] > Subject: Re: [JBoss-user] CMR bug fixed? > > > This has never been supported. Some people have described hacks around > this, but I do not recommend them, as you can end up with an > inconsistent database state. Support for this is on the todo list. > > -dain > > Jerry Smith wrote: > >>I've been trying to follow what got fixed for CMR in Branch_3_0 and seem > > to > >>have gotten lost ;-) Is the fix for allowing a column to be part of a >>primary key, be a foreign key, and have a CMR use that column? What I'm >>seeing in the Branch_3_0 is that I'm getting 2 columns with the same name, >>one nullable the other not. Or is there something wrong with my config >>files? >> >>Thanks, and sorry if I'm beating a dead horse! >> >>-Jerry >> >>-----Original Message----- >>From: Dain Sundstrom [mailto:[EMAIL PROTECTED]] >>Sent: Monday, June 24, 2002 6:58 PM >>To: [EMAIL PROTECTED] >>Subject: Re: [JBoss-user] CMR bug fixed? >> >> >>It looks like you have an out of date standardjbossmcmp-jdbc.xml file or >>you have written your own type mapping in your jbosscmp-jdbc.xml file. >>The true-mapping element contains the string to which true values in >>EJB-QL are mapped; there related element false-mapping for false values. >> >>Branch_3_0 builds for me. Maybe you got a half committed version again. >>Update the entire tree again, "./build.sh clean", and "./build.sh". >> >>-dain >> >>Douglas Su wrote: >> >> >>>Dain and Stephen, >>> >>> First of all, thank you very much guys. Okay, I checked out the >>>"jboss-all" source from both "HEAD" and "Branch_3_0." The one from >>>"Branch_3_0" can not be successfully build. It gives 6 errors and 3 >>>warnings. The one from "HEAD" had no problem when I build it. However >>>it gives me problem when I try to deploy a single simple entity bean >>>(with no relations). The delpoyment errors was: >>> >>>16:34:03,011 ERROR [EjbModule] Starting failed >>>org.jboss.deployment.DeploymentException: expected one true-mapping tag >>> at org.jboss.metadata.MetaData.getUniqueChild(MetaData.java:95) >>> at >>>org.jboss.metadata.MetaData.getUniqueChildContent(MetaData.java:198) >>> at >>>org.jboss.ejb.plugins.cmp.jdbc.metadata.JDBCTypeMappingMetaData.<init >>> >>> >>> >>>>(JDBCTypeMappingMetaData.java:130) >>> >>> at >>>org.jboss.ejb.plugins.cmp.jdbc.metadata.JDBCApplicationMetaData.<init >>> >>> >>> >>>>(JDBCApplicationMetaData.java:202) >>> >>> >>>.... >>> >>>Any suggestion? Comment? >>> >>>Thank you very much, >>> >>>Douglas >>> >>> >>> >>>>From: Dain Sundstrom <[EMAIL PROTECTED]> >>>>Reply-To: [EMAIL PROTECTED] >>>>To: [EMAIL PROTECTED] >>>>Subject: Re: [JBoss-user] CMR bug fixed? >>>>Date: Mon, 24 Jun 2002 11:54:56 -0500 >>>> >>>>Yes that is HEAD, but I agree with Stephen Coy in that you should only >>>>use this version if you are interested in developing JBoss. As for >>>>the problems you have, I suggest you update the code again and >>>>recompile. You may have checked out the code in the middle of another >>>>developer's commit. >>>> >>>>-dain >>>> >>>>Douglas Su wrote: >>>> >>>> >>>> >>>>>Dain, >>>>>I've checked out JBoss-all module and I compiled a jboss3.1.0alpha >>>>>version. Is this the correct version? Is the CMR bug fixed for this >>>>>version? Is this the "Branch_3_0 and Head" you are talking about? >>>>>This version seems to give me some error on ejb-management.jar and >>>>>jmx-ejb-adaptor.jar when I starts the server. Any Suggestion? >>>>> >>>>>Thank you very much, >>>>>Douglas >>>>> >>>>> >>>>> >>>>> >>>>>>From: Dain Sundstrom <[EMAIL PROTECTED]> >>>>>>Reply-To: [EMAIL PROTECTED] >>>>>>To: [EMAIL PROTECTED] >>>>>>Subject: Re: [JBoss-user] CMR bug fixed? >>>>>>Date: Thu, 20 Jun 2002 11:50:27 -0500 >>>>>> >>>>>>Yep, if you execute a finder before the field is set the database is >>>>>>not updated. This has been fixed in cvs Branch_3_0 and HEAD. cvs >>>>>>is covered in the Quick Start guide. >>>>>> >>>>>>-dain >>>>>> >>>>>>Douglas Su wrote: >>>>>> >>>>>> >>>>>> >>>>>>>Hi All, >>>>>>> >>>>>>>Is there a bug with the CMR field? Is the bug fixed? I am having >>>>>>>trouble creating 1:N relationship. JBoss creates Null field and I >>>>>>>can't make a foreign key be apart of a primary key. Any Suggestions? >>>>>>> >>>>>>>Thanks, >>>>>>>Douglas >>>>>>> >>>>>>> >>>>>>>_________________________________________________________________ >>>>>>>Get your FREE download of MSN Explorer at >>>>>>>http://explorer.msn.com/intl.asp. >>>>>>> >>>>>>> >>>>>>> >>>>>>>------------------------------------------------------- >>>>>>> Bringing you mounds of caffeinated joy >>>>>>> >>> http://thinkgeek.com/sf <<< >>>>>>> >>>>>>>_______________________________________________ >>>>>>>JBoss-user mailing list >>>>>>>[EMAIL PROTECTED] >>>>>>>https://lists.sourceforge.net/lists/listinfo/jboss-user >>>>>> >>>>>> >>>>>> >>>>>> >>>>>>-- >>>>>>xxxxxxxxxxxxxxxxxxxxxxxx >>>>>>Dain Sundstrom >>>>>>Chief Architect JBossCMP >>>>>>JBoss Group, LLC >>>>>>xxxxxxxxxxxxxxxxxxxxxxxx >>>>>> >>>>>> >>>>>> >>>>>>------------------------------------------------------- >>>>>> Bringing you mounds of caffeinated joy >>>>>> >>> http://thinkgeek.com/sf <<< >>>>>> >>>>>>_______________________________________________ >>>>>>JBoss-user mailing list >>>>>>[EMAIL PROTECTED] >>>>>>https://lists.sourceforge.net/lists/listinfo/jboss-user >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>_________________________________________________________________ >>>>>Send and receive Hotmail on your mobile device: http://mobile.msn.com >>>>> >>>>> >>>>> >>>>>------------------------------------------------------- >>>>>Sponsored by: >>>>>ThinkGeek at http://www.ThinkGeek.com/ >>>>>_______________________________________________ >>>>>JBoss-user mailing list >>>>>[EMAIL PROTECTED] >>>>>https://lists.sourceforge.net/lists/listinfo/jboss-user >>>> >>>> >>>> >>>> >>>> >>>> >>>>------------------------------------------------------- >>>>Sponsored by: >>>>ThinkGeek at http://www.ThinkGeek.com/ >>>>_______________________________________________ >>>>JBoss-user mailing list >>>>[EMAIL PROTECTED] >>>>https://lists.sourceforge.net/lists/listinfo/jboss-user >>> >>> >>> >>> >>> >>>_________________________________________________________________ >>>Join the world's largest e-mail service with MSN Hotmail. >>>http://www.hotmail.com >>> >>> >>> >>>------------------------------------------------------- >>>Sponsored by: >>>ThinkGeek at http://www.ThinkGeek.com/ >>>_______________________________________________ >>>JBoss-user mailing list >>>[EMAIL PROTECTED] >>>https://lists.sourceforge.net/lists/listinfo/jboss-user >> >> >> > > -- xxxxxxxxxxxxxxxxxxxxxxxx Dain Sundstrom Chief Architect JBossCMP JBoss Group, LLC xxxxxxxxxxxxxxxxxxxxxxxx ------------------------------------------------------- This sf.net email is sponsored by: Jabber Inc. 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