[jboss-user] [JBoss Seam] - Re: Synchronizing to DataModels

[urswag]

I have two stateless session beans assortmentManager and categoryManager. Category is a detail bean of Assortment (1:N relation). 
In the inner data table the assortmentCategories list must always built up because the reference assortmemt always changes.

Remember the JSF code
anonymous wrote : 
  | 
  | <h:dataTable var="assort" value="#{assortments}">
  | <h:column>
  | <h:outputLink value="">
  | <h:outputText value="#{assort.description}" />
  | </h:outputLink>
  | <h:dataTable var="category" value="#{assortmentCategories}">
  | <h:column>
  | <h:outputLink value="">
  | <h:outputText value="#{category.description}" />
  | </h:outputLink>
  | </h:column>
  | </h:dataTable>
  | </h:column>
  | </h:dataTable>
  | 
  | 

The code of the both session beans. I need a synchronize mechanism for the list assortmentCategories of the inner data table.

 anonymous wrote : 
  | 
  | package ...;
  | 
  | import ....;
  | 
  | @Stateless
  | @Scope(SESSION)
  | @Name("assortmentManager")
  | @Interceptors(SeamInterceptor.class)
  | public class AssortmentManagerBean implements Serializable, AssortmentManager {
  | 
  | 	@DataModel
  | 	private List assortments;
  | 
  | 	@PersistenceContext
  | 	private EntityManager em;
  | 
  | 	@Factory("assortments")
  | 	public void findAssortments() {
  | 
  | 		assortments = em.createQuery("from Assortment a order by a.description")
  | 				.getResultList();
  | 		
  | 	}
  | 
  | 	@Remove
  | 	@Destroy
  | 	public void destroy() {
  | 
  | 	}
  | 
  | }
  | 
  | 

The other bean

anonymous wrote : 
  | 
  | package ....;
  | 
  | import ...;
  | 
  | @Stateless
  | @Scope(SESSION)
  | @Name("categoryManager")
  | @Interceptors(SeamInterceptor.class)
  | public class CategoryManagerBean implements Serializable,
  | 		CategoryManager {
  | 
  | 	@DataModel
  | 	private List assortmentCategories;
  | 
  | 	@PersistenceContext
  | 	private EntityManager em;
  | 
  | 	@Factory("assortmentCategories")
  | 	public void findCategories() {
  | 
  | 		Query query = em
  | 				.createQuery("from Category c where c.assortment = :assortment");
  | 		query.setParameter("assortment", assortment);
  | 		assortmentCategories = query.getResultList();
  | 
  | 	}
  | 
  | 	@Remove
  | 	@Destroy
  | 	public void destroy() {
  | 
  | 	}
  | 
  | 

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