Code generation tool for persitence layer (from database)
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Code generation tool for persitence layer (from database)
by csergiu77
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Do you know any good persistence layer code generation tool ? (not only for JPA) To generate simple inserts,update,delete,getAll...,findBy bla bla stuff and create the interfaces and necessary factories. THX ! |
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Re: Code generation tool for persitence layer (from database)
by tch
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Well for JPA in Eclipse there is Dali (JPA Tools).
After that you don't have to write code to make inserts/updates/deletes :) Though, many people have a common "DAO" class for selectAll, etc. That really depends on the framework you're using though -- how you make your DAO class. ./tch On Sat, Nov 22, 2008 at 1:06 PM, csergiu77 <csergiu77@...> wrote: > > > Do you know any good persistence layer code generation tool ? (not only for > JPA) > > To generate simple inserts,update,delete,getAll...,findBy bla bla stuff and > create the interfaces and necessary factories. > > THX ! > > > > -- > View this message in context: http://www.nabble.com/Code-generation-tool-for-persitence-layer-%28from-database%29-tp20639046p20639046.html > Sent from the EclipseLink - Users mailing list archive at Nabble.com. > > _______________________________________________ > eclipselink-users mailing list > eclipselink-users@... > https://dev.eclipse.org/mailman/listinfo/eclipselink-users > eclipselink-users mailing list eclipselink-users@... https://dev.eclipse.org/mailman/listinfo/eclipselink-users |
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Re: Code generation tool for persitence layer (from database)
by csergiu77
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Thx. That is what i want to avoid :) (i'm lazy in write code that repeats in logic and structure) There is something on the market called Firestorm DAO but I wondered if there is no other magic toold that code all simple persitance layer from database (only simple insert,update,delete,findAll) ?
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Re: Code generation tool for persitence layer (from database)
by tch
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Why don't you just write your DAO once and extend it when needed? Code
gen seems like the wrong solution for DAO's. ./tch On Mon, Nov 24, 2008 at 9:04 AM, csergiu77 <csergiu77@...> wrote: > > > Thx. > > That is what i want to avoid :) (i'm lazy in write code that repeats in > logic and structure) > > There is something on the market called Firestorm DAO but I wondered if > there is no other magic toold that code all simple persitance layer from > database (only simple insert,update,delete,findAll) ? > > > > > > Tim Hollosy wrote: >> >> Well for JPA in Eclipse there is Dali (JPA Tools). >> >> After that you don't have to write code to make inserts/updates/deletes :) >> >> Though, many people have a common "DAO" class for selectAll, etc. That >> really depends on the framework you're using though -- how you make >> your DAO class. >> >> ./tch >> >> >> >> On Sat, Nov 22, 2008 at 1:06 PM, csergiu77 <csergiu77@...> wrote: >>> >>> >>> Do you know any good persistence layer code generation tool ? (not only >>> for >>> JPA) >>> >>> To generate simple inserts,update,delete,getAll...,findBy bla bla stuff >>> and >>> create the interfaces and necessary factories. >>> >>> THX ! >>> >>> >>> >>> -- >>> View this message in context: >>> http://www.nabble.com/Code-generation-tool-for-persitence-layer-%28from-database%29-tp20639046p20639046.html >>> Sent from the EclipseLink - Users mailing list archive at Nabble.com. >>> >>> _______________________________________________ >>> eclipselink-users mailing list >>> eclipselink-users@... >>> https://dev.eclipse.org/mailman/listinfo/eclipselink-users >>> >> _______________________________________________ >> eclipselink-users mailing list >> eclipselink-users@... >> https://dev.eclipse.org/mailman/listinfo/eclipselink-users >> >> > > -- > View this message in context: http://www.nabble.com/Code-generation-tool-for-persitence-layer-%28from-database%29-tp20639046p20661083.html > Sent from the EclipseLink - Users mailing list archive at Nabble.com. > > _______________________________________________ > eclipselink-users mailing list > eclipselink-users@... > https://dev.eclipse.org/mailman/listinfo/eclipselink-users > eclipselink-users mailing list eclipselink-users@... https://dev.eclipse.org/mailman/listinfo/eclipselink-users |
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Re: Code generation tool for persitence layer (from database)
by csergiu77
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Sorry for asking you again:
What do you mean by :"Code > gen seems like the wrong solution for DAO's. > "? Thx again --- On Mon, 11/24/08, Tim Hollosy <hollosyt@...> wrote: > From: Tim Hollosy <hollosyt@...> > Subject: Re: [eclipselink-users] Code generation tool for persitence layer (from database) > To: "EclipseLink User Discussions" <eclipselink-users@...> > Date: Monday, November 24, 2008, 4:15 PM > Why don't you just write your DAO once and extend it > when needed? Code > gen seems like the wrong solution for DAO's. > > ./tch > > > > On Mon, Nov 24, 2008 at 9:04 AM, csergiu77 > <csergiu77@...> wrote: > > > > > > Thx. > > > > That is what i want to avoid :) (i'm lazy in write > code that repeats in > > logic and structure) > > > > There is something on the market called Firestorm DAO > but I wondered if > > there is no other magic toold that code all simple > persitance layer from > > database (only simple insert,update,delete,findAll) ? > > > > > > > > > > > > Tim Hollosy wrote: > >> > >> Well for JPA in Eclipse there is Dali (JPA Tools). > >> > >> After that you don't have to write code to > make inserts/updates/deletes :) > >> > >> Though, many people have a common "DAO" > class for selectAll, etc. That > >> really depends on the framework you're using > though -- how you make > >> your DAO class. > >> > >> ./tch > >> > >> > >> > >> On Sat, Nov 22, 2008 at 1:06 PM, csergiu77 > <csergiu77@...> wrote: > >>> > >>> > >>> Do you know any good persistence layer code > generation tool ? (not only > >>> for > >>> JPA) > >>> > >>> To generate simple > inserts,update,delete,getAll...,findBy bla bla stuff > >>> and > >>> create the interfaces and necessary factories. > >>> > >>> THX ! > >>> > >>> > >>> > >>> -- > >>> View this message in context: > >>> > http://www.nabble.com/Code-generation-tool-for-persitence-layer-%28from-database%29-tp20639046p20639046.html > >>> Sent from the EclipseLink - Users mailing list > archive at Nabble.com. > >>> > >>> > _______________________________________________ > >>> eclipselink-users mailing list > >>> eclipselink-users@... > >>> > https://dev.eclipse.org/mailman/listinfo/eclipselink-users > >>> > >> _______________________________________________ > >> eclipselink-users mailing list > >> eclipselink-users@... > >> > https://dev.eclipse.org/mailman/listinfo/eclipselink-users > >> > >> > > > > -- > > View this message in context: > http://www.nabble.com/Code-generation-tool-for-persitence-layer-%28from-database%29-tp20639046p20661083.html > > Sent from the EclipseLink - Users mailing list archive > at Nabble.com. > > > > _______________________________________________ > > eclipselink-users mailing list > > eclipselink-users@... > > > https://dev.eclipse.org/mailman/listinfo/eclipselink-users > > > _______________________________________________ > eclipselink-users mailing list > eclipselink-users@... > https://dev.eclipse.org/mailman/listinfo/eclipselink-users _______________________________________________ eclipselink-users mailing list eclipselink-users@... https://dev.eclipse.org/mailman/listinfo/eclipselink-users |
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Re: Code generation tool for persitence layer (from database)
by tch
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Well, already by using an ORM like EclipseLink you don't have to write
SQL to do deletes/updates/inserts right? So what code are you trying to generate for DAO's? a call to entityManager.merge? Your DAO is independent of any specific entities, so you don't need to make 30 different implementations of it. Here's an example of a SimpleDAO that I use on it's own or extend if I need a special one. (Ignore Spring annotations, and you may have to change you you obtain your entity manager if you're not using spring dependency injection...) import java.util.List; import javax.annotation.PostConstruct; import javax.persistence.EntityManager; import javax.persistence.EntityManagerFactory; import javax.persistence.PersistenceContext; import javax.persistence.PersistenceUnit; import javax.persistence.Query; import org.eclipse.persistence.jpa.JpaEntityManager; import org.eclipse.persistence.jpa.JpaHelper; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.orm.jpa.JpaCallback; import org.springframework.orm.jpa.support.JpaDaoSupport; import org.springframework.stereotype.Repository; import org.springframework.transaction.annotation.Propagation; import org.springframework.transaction.annotation.Transactional; @Transactional @Repository public class SimpleDao { @PersistenceContext private EntityManager entityManager; public EntityManager getEntityManager() { return entityManager; } @Transactional(propagation=Propagation.REQUIRED) public void insert(Object entity) { entityManager.persist(entity); } @Transactional(propagation=Propagation.REQUIRED) public <T> T save(T entity) { return entityManager.merge(entity); } @Transactional(propagation=Propagation.REQUIRED) public void delete(Object entity) { entityManager.remove(entity); } @Transactional(readOnly = true) public <T> T find(Class<T> entityClass, Object primaryKey) { return entityManager.find(entityClass, primaryKey); } @Transactional(readOnly = true) public <T> List<T> selectAll(Class<T> clazz) { return (List<T>) JpaHelper.getEntityManager(entityManager).createQuery(null, clazz).getResultList(); JpaHelper.getEntityManager(entityManager).createQuery(null, clazz).set } } ./tch On Mon, Nov 24, 2008 at 9:18 AM, Chiovari Cristian Sergiu <csergiu77@...> wrote: > Sorry for asking you again: > > What do you mean by :"Code >> gen seems like the wrong solution for DAO's. >> "? > > Thx again > > > --- On Mon, 11/24/08, Tim Hollosy <hollosyt@...> wrote: > >> From: Tim Hollosy <hollosyt@...> >> Subject: Re: [eclipselink-users] Code generation tool for persitence layer (from database) >> To: "EclipseLink User Discussions" <eclipselink-users@...> >> Date: Monday, November 24, 2008, 4:15 PM >> Why don't you just write your DAO once and extend it >> when needed? Code >> gen seems like the wrong solution for DAO's. >> >> ./tch >> >> >> >> On Mon, Nov 24, 2008 at 9:04 AM, csergiu77 >> <csergiu77@...> wrote: >> > >> > >> > Thx. >> > >> > That is what i want to avoid :) (i'm lazy in write >> code that repeats in >> > logic and structure) >> > >> > There is something on the market called Firestorm DAO >> but I wondered if >> > there is no other magic toold that code all simple >> persitance layer from >> > database (only simple insert,update,delete,findAll) ? >> > >> > >> > >> > >> > >> > Tim Hollosy wrote: >> >> >> >> Well for JPA in Eclipse there is Dali (JPA Tools). >> >> >> >> After that you don't have to write code to >> make inserts/updates/deletes :) >> >> >> >> Though, many people have a common "DAO" >> class for selectAll, etc. That >> >> really depends on the framework you're using >> though -- how you make >> >> your DAO class. >> >> >> >> ./tch >> >> >> >> >> >> >> >> On Sat, Nov 22, 2008 at 1:06 PM, csergiu77 >> <csergiu77@...> wrote: >> >>> >> >>> >> >>> Do you know any good persistence layer code >> generation tool ? (not only >> >>> for >> >>> JPA) >> >>> >> >>> To generate simple >> inserts,update,delete,getAll...,findBy bla bla stuff >> >>> and >> >>> create the interfaces and necessary factories. >> >>> >> >>> THX ! >> >>> >> >>> >> >>> >> >>> -- >> >>> View this message in context: >> >>> >> http://www.nabble.com/Code-generation-tool-for-persitence-layer-%28from-database%29-tp20639046p20639046.html >> >>> Sent from the EclipseLink - Users mailing list >> archive at Nabble.com. >> >>> >> >>> >> _______________________________________________ >> >>> eclipselink-users mailing list >> >>> eclipselink-users@... >> >>> >> https://dev.eclipse.org/mailman/listinfo/eclipselink-users >> >>> >> >> _______________________________________________ >> >> eclipselink-users mailing list >> >> eclipselink-users@... >> >> >> https://dev.eclipse.org/mailman/listinfo/eclipselink-users >> >> >> >> >> > >> > -- >> > View this message in context: >> http://www.nabble.com/Code-generation-tool-for-persitence-layer-%28from-database%29-tp20639046p20661083.html >> > Sent from the EclipseLink - Users mailing list archive >> at Nabble.com. >> > >> > _______________________________________________ >> > eclipselink-users mailing list >> > eclipselink-users@... >> > >> https://dev.eclipse.org/mailman/listinfo/eclipselink-users >> > >> _______________________________________________ >> eclipselink-users mailing list >> eclipselink-users@... >> https://dev.eclipse.org/mailman/listinfo/eclipselink-users > > > > _______________________________________________ > eclipselink-users mailing list > eclipselink-users@... > https://dev.eclipse.org/mailman/listinfo/eclipselink-users > eclipselink-users mailing list eclipselink-users@... https://dev.eclipse.org/mailman/listinfo/eclipselink-users |
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