Can't help there, as I haven't tried it yet. Anyway the Spring Roo tutorial includes generation of persistent classes using JPA and Hibernate, so I guess it will include some way to get those entities to GWT, taking into account that is integrated with it
Good luck!! On 21 mayo, 12:57, Navigateur <naveen.c...@googlemail.com> wrote: > Thanks José! > > Spring Roo looks brilliant! Just one issue, does any of its modules > utilise Gilead or another DTO assembler so that the Hibernate entities > can smoothly go to the GWT client-side? > > On May 20, 5:03 pm, José González Gómez > > > > <jose.gonzalez.go...@gmail.com> wrote: > > Although you could think they're the perfect solution for persistence > > in OO languages, object databases haven't taken off, so if you're > > doing anything serious I would be cautious about using them. I don't > > know of any big application in production with an OODB. Maybe we're > > too used to relational databases... > > > Take a look at Spring Roo, I think you will like it. > > > Best regards > > José > > > On 20 mayo, 17:43, Navigateur <naveen.c...@googlemail.com> wrote: > > > > Wow, thanks José and David! > > > > I'm new to "tools" so I'm a bit nervous about using them (although I > > > probably shouldn't be) whereas db4o offers straightforward code for > > > persisting objects. Are there any disadvantages to using db4o instead > > > of ORM with tools? db4o seems intuitavely the best option for me right > > > now, but could I be wrong? I thank David for bringing it to my > > > attention, it looks VERY interesting, and under active development, > > > although the queries are currently reportedly slow, but when that is > > > fixed, is there a reason why it shouldn't supercede RD and ORD for new > > > projects? > > > > On May 20, 3:18 pm, José González Gómez > > > > <jose.gonzalez.go...@gmail.com> wrote: > > > > JPA/Hibernate supports annotations, so you don't have to fiddle with > > > > xml files any more; and JPA/Hibernate has adopted the "sane defaults" > > > > and "convention over configuration" policy, so unless you want to take > > > > control of your mappings (something you should do if you're doing > > > > anything serious) most of the times it's enough to annotate the > > > > persistent class with the @Entity annotation. > > > > > Anyway, if you're handling complex object structures, it's way more > > > > cumbersome to handle persistence by hand, instead of using a ORM > > > > framework. If you want to have automatic update of the database, > > > > Hibernate tools is able to generate the database schema from your > > > > mappings. I suggest to take a look at Maven, Maven Hibernate plugin, > > > > JBoss Tools, and Spring Roo. Haven't worked with the later, but GWT > > > > has just made a coordinated release with Spring Roo and I think it may > > > > be quite interesting for you. > > > > > I hope this isn't getting too much OT... > > > > > HTH, best regards > > > > José > > > > > On 20 mayo, 15:37, Navigateur <naveen.c...@googlemail.com> wrote: > > > > > > Thanks José! But don't they still require you to do the "hibernate- > > > > > mapping" xml thing? Isn't this cumbersome for complex object > > > > > structures? Or is there a way of being able to play with your object > > > > > structure without having to change the hibernate-mapping xml every > > > > > time (i.e. a default automatic behaviour for all objects, which also > > > > > updates the data-store to reflect object-structure changes in the > > > > > code)? > > > > > > Thanks! > > > > > N > > > > > > On May 20, 10:08 am, José González Gómez > > > > > > <jose.gonzalez.go...@gmail.com> wrote: > > > > > > Although your question has (almost) nothing to do with GWT... we're > > > > > > working on a GWT + JavaEE application, and evaluated several > > > > > > alternatives regarding this problem. We had two winners, both of > > > > > > them > > > > > > using of course JPA with Hibernate provider: > > > > > > > 1. Use Gilead to transform your persistent entities and send them to > > > > > > GWT > > > > > > 2. Use DTOs, and use Dozer to transform from / to domain objects / > > > > > > entities > > > > > > > In our case we chose DTOs / Dozer over Gilead because we favoured > > > > > > layer separation, encapsulation and security over development ease. > > > > > > YMMV > > > > > > > Best regards > > > > > > José > > > > > > > On 20 mayo, 10:54, Navigateur <naveen.c...@googlemail.com> wrote: > > > > > > > > Ah yes! Except that I want to be able to get persistent things > > > > > > > onto my > > > > > > > client side without too much conversion or trouble (i.e. the same > > > > > > > objects client-and-server-side using the same language, and the > > > > > > > same > > > > > > > class definitions). > > > > > > > > What are my full range of options for this, anyway? > > > > > > > And which is the best one for the purposes I've mentioned? > > > > > > > > On May 20, 12:34 am, Blessed Geek <blessedg...@gmail.com> wrote: > > > > > > > > > Wouldn't your initial question be like - > > > > > > > > What is the best power tool to use to build the fence around my > > > > > > > > garden > > > > > > > > if I wish to plant my garden with tulips. > > > > > > > > > But later on in your post, you reveal that your question > > > > > > > > actually has > > > > > > > > nothing to do with GWT, just as growing tulips has nothing to > > > > > > > > do with > > > > > > > > choice of power tools for your fence. > > > > > > > > > -- > > > > > > > > You received this message because you are subscribed to the > > > > > > > > Google Groups "Google Web Toolkit" group. > > > > > > > > To post to this group, send email to > > > > > > > > google-web-tool...@googlegroups.com. > > > > > > > > To unsubscribe from this group, send email to > > > > > > > > google-web-toolkit+unsubscr...@googlegroups.com. > > > > > > > > For more options, visit this group > > > > > > > > athttp://groups.google.com/group/google-web-toolkit?hl=en. > > > > > > > > -- > > > > > > > You received this message because you are subscribed to the > > > > > > > Google Groups "Google Web Toolkit" group. > > > > > > > To post to this group, send email to > > > > > > > google-web-tool...@googlegroups.com. > > > > > > > To unsubscribe from this group, send email to > > > > > > > google-web-toolkit+unsubscr...@googlegroups.com. > > > > > > > For more options, visit this group > > > > > > > athttp://groups.google.com/group/google-web-toolkit?hl=en. > > > > > > > -- > > > > > > You received this message because you are subscribed to the Google > > > > > > Groups "Google Web Toolkit" group. > > > > > > To post to this group, send email to > > > > > > google-web-tool...@googlegroups.com. > > > > > > To unsubscribe from this group, send email to > > > > > > google-web-toolkit+unsubscr...@googlegroups.com. > > > > > > For more options, visit this group > > > > > > athttp://groups.google.com/group/google-web-toolkit?hl=en. > > > > > > -- > > > > > You received this message because you are subscribed to the Google > > > > > Groups "Google Web Toolkit" group. > > > > > To post to this group, send email to > > > > > google-web-tool...@googlegroups.com. > > > > > To unsubscribe from this group, send email to > > > > > google-web-toolkit+unsubscr...@googlegroups.com. > > > > > For more options, visit this group > > > > > athttp://groups.google.com/group/google-web-toolkit?hl=en. > > > > > -- > > > > You received this message because you are subscribed to the Google > > > > Groups "Google Web Toolkit" group. > > > > To post to this group, send email to > > > > google-web-tool...@googlegroups.com. > > > > To unsubscribe from this group, send email to > > > > google-web-toolkit+unsubscr...@googlegroups.com. > > > > For more options, visit this group > > > > athttp://groups.google.com/group/google-web-toolkit?hl=en. > > > > -- > > > You received this message because you are subscribed to the Google Groups > > > "Google Web Toolkit" group. > > > To post to this group, send email to google-web-tool...@googlegroups.com. > > > To unsubscribe from this group, send email to > > > google-web-toolkit+unsubscr...@googlegroups.com. > > > For more options, visit this group > > > athttp://groups.google.com/group/google-web-toolkit?hl=en. > > > -- > > You received this message because you are subscribed to the Google Groups > > "Google Web Toolkit" group. > > To post to this group, send email to google-web-tool...@googlegroups.com. > > To unsubscribe from this group, send email to > > google-web-toolkit+unsubscr...@googlegroups.com. > > For more options, visit this group > > athttp://groups.google.com/group/google-web-toolkit?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "Google Web Toolkit" group. > To post to this group, send email to google-web-tool...@googlegroups.com. > To unsubscribe from this group, send email to > google-web-toolkit+unsubscr...@googlegroups.com. > For more options, visit this group > athttp://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. 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