Re: Apache Myfaces12 Codi Tomcat 7 - Transaction Problems

[Gerhard Petracek]

hi steffen,

first of all: welcome @ myfaces

if EntityTransaction#begin and (#commit or #rollback) get called, the part
done by codi is fine and it's a different issue.

regards,
gerhard

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2013/3/20 <steffen.her...@zf.com>

> Hello,****
>
> ** **
>
> Problem with codi(1.0.5) Transactions and Java (1.6/1.7) generics.****
>
> ** **
>
> Infrastructure:****
>
> Myfaces12****
>
> Jpa2 (eclipslink 2.4)****
>
> Codi 1.0.5****
>
> Tomcat 7****
>
> OpenWebBeans 1****
>
> ** **
>
> See Classes below****
>
> Problem is:****
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>
> ** **
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> When we inject the Interface *IpersonDao* in the Service Class
> (PersonServerImpl) and do the following:****
>
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> dao.delete(person) à *No* Transaction is openend and nothing happens!!!!!*
> ***
>
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> doa.persist(person)à Transaction is opened and entity is saved.****
>
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>
> Difference is that in the *IpersonDaoSuperInterface *the delete function
> contains generic arguments and the persist fuction has a concrete Object
> (person). But we need the generic type for all function in the *
> IpersonDaoSuperInterface.*
>
> * *
>
> When we inject the Concrete Implementation of the dao* (*  @Inject
> private PersonDao dao*) *in* *PersonServerImpl the delete function also
> works*.*
>
> * *
>
> *Question.*
>
> *Why cant we inject the Dao Interface when we use java generics in the
> interface hierarchy???*
>
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> Service Class:****
>
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>
> public class PersonServerImpl implements PersonService****
>
> {****
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>   @Inject****
>
>   private IPersonDao dao;****
>
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>   public void removePerson(Person person)****
>
>   {****
>
>     dao.delete(person);****
>
>   }****
>
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>   public Person savePerson(Person person)****
>
>   {****
>
>     return dao.persist(person);****
>
>   }****
>
> ** **
>
> }****
>
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>
> Dao Class:****
>
> ** **
>
> public class PersonDao implements IPersonDao****
>
> {****
>
> *@Transactional*
>
>   public void delete(Person entity)****
>
>   {****
>
>     em.remove(em.merge(entity));****
>
>   }****
>
> * @Transactional*
>
>   public Person persist(Person entity)****
>
>   {****
>
>     em.persist(entity);****
>
>     return entity;****
>
>   }****
>
> ** **
>
> …****
>
> }****
>
> ** **
>
> IpersonDao Interface:****
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> ** **
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> public interface IPersonDao extends *IpersonDaoSuperInterface*<Person> ***
> *
>
> {****
>
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>     public abstract List<Person> loadAll();****
>
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>     public abstract Person loadById(Serializable id);****
>
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>     public abstract List<Person> findByLastName(String lastname);****
>
> }****
>
> ** **
>
> IpersonDaoSuperInterface:****
>
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> public interface *IpersonDaoSuperInterface*<T extends DbObject> ****
>
> {****
>
>     public abstract void delete(T entity);****
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>      public abstract Person  persist(Person  entity);****
>
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>      public abstract T  update(T  entity);****
>
> }****
>
> ** **
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> * *
>
> *Thanks fore help*****
>
> * *
>
> steffen****
>
> ** **
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> ** **
>