Re: [GENERAL] Does anyone use postgreSQL(windows version)+Hibernate with middlegen?
I have found the correct combinations to solve this problem. Let me brief what I have done,and the way is simple. 1.download latest middlegen from CVS (:pserver:anonym...@middlegen.cvs.sourceforge.net:/cvsroot/middlegen) 2.build the source with ant,then I have middlegen2.2-dev bundles jar files. (http://boss.bekk.no/boss/middlegen/install.html) 3.download latest postgreSQL driver (I use postgresql-8.3-604.jdbc3.jar) 4.modify relative parameters in middlegen ant build.xml then all the generation works as what I want. -- View this message in context: http://www.nabble.com/Does-anyone-use-postgreSQL%28windows-version%29%2BHibernate-with-middlegen--tp23089668p23093725.html Sent from the PostgreSQL - general mailing list archive at Nabble.com. -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
Re: [GENERAL] Does anyone use postgreSQL(windows version)+Hibernate with middlegen?
rolandpeng wrote: How do you resolve this problem? or If you use postgreSQL+Hibernate3,how do you maintain your *.hbm.xml and entities? I use Hibernate 3 with PostgreSQL via JPA (Hibernate EntityManager). I maintain my entity definitions by hand. I find generated solutions to generally be unsatisfactory. They don't tend to preserve my customizations for eager/lazy fetching, updatability, etc, nor my entity initialization changes. They don't generally handle domain types all that well, and they don't always pick the best type to map for a PostgreSQL field. They tend to clobber my documentation, too. They have a lot of trouble with things like NOT NULL fields that are set by a server-side trigger, so the client application *MUST* *NOT* set them on INSERT even though they're NOT NULL in the schema. Yet I have one problem that I have only been able to solve in exactly this way. It's easy to handle in a custom binding (set nullable=true, updatable=false) but binding generators just don't and can't have that kind of knowledge. Bindings generators are useful as a starting point, but unless your schema is really rather simple I'm not convinced about their long-term utility. -- Craig Ringer -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
Re: [GENERAL] Does anyone use postgreSQL(windows version)+Hibernate with middlegen?
Yes,I'm totally agree about this comments. But as you're mentioned,I'd like to build all the hbm.xml at first run. I have built more than 40 tables with complicated relations among those. So if middlegen could help me to complete the template work at first generation would be very convenience. Today I have downloaded the middlegen-2.2dev from CVS and use ant successfully rebuild. Here I'll try to keep track on middlegen with PostqreSQL. But if I still can't make it successfully generation,I think I'll maintain all the hibernate resource manually. Thanks again.Any comments or advice will be very welcome. Craig Ringer wrote: Bindings generators are useful as a starting point, but unless your schema is really rather simple I'm not convinced about their long-term utility. -- View this message in context: http://www.nabble.com/Does-anyone-use-postgreSQL%28windows-version%29%2BHibernate-with-middlegen--tp23089668p23090476.html Sent from the PostgreSQL - general mailing list archive at Nabble.com. -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
Re: [GENERAL] Does anyone use postgreSQL(windows version)+Hibernate with middlegen?
rolandpeng wrote: Yes,I'm totally agree about this comments. But as you're mentioned,I'd like to build all the hbm.xml at first run. I have built more than 40 tables with complicated relations among those. So if middlegen could help me to complete the template work at first generation would be very convenience. NetBeans does fairly decent schema generation, at least for JPA. I'm not too sure whether it supports XML-based schema definitions too. Personally, I look at the XML-based hibernate stuff and shudder. JPA isn't exactly beautiful, but it's fairly maintainable and kind of clean. If you're building a new project, have you considered using JPA and Hibernate EntityManager? You can always drop back down to the underlying Hibernate APIs when you need to (for example: setting parent/child autodelete relationships, which aren't defined in JPA 1 only in the yet-to-be-availible JPA2) and most of the time EntityManager is very nice to work with. You still use HQL, or native SQL queries as/when you prefer. -- Craig Ringer -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
