I'm writing simple CRUD application that handles I'm writing simple CRUD application that handles "folders" and associated "items". The list of all folders is displayed on the home page as following: | <h:dataTable value="#{folders}" var="_folder"> | <h:column> | <f:facet name="header">Id</f:facet> | <s:link action="#{folderFinder.selectFolder}" value="#{_folder.id}"/> | </h:column> | <h:column> | <f:facet name="header">Title</f:facet> | <h:outputText value="#{_folder.title}" /> | </h:column> | ? | </h:dataTable> | "folders" are managed in a SFSB: | ? | @DataModel("folders") | List<Folder> folders; | | @DataModelSelection | @Out(required=false) | Folder folder; | | @In(create=true) @Out(required=false) | transient ItemFinder itemFinder; | | @Out(required=false) | List<Item> item; | | @Factory("folders") | public void refresh() { | folders = em.createQuery("from Folder").getResultList(); | } | | @Begin(join=true) | public String selectFolder() { | itemFinder.refresh(folder); //init "items" to contain items from this folder | return "view_folder"; | } | ? | So far so good. My problem starts when I select a folder and display it with its items as every item appears twice in the dataTable! A folder is displayed as following : | <t:panelTabbedPane ? > | <t:panelTab label="Folder"> | <h:panelGrid columns="2"> | <h:outputText value="Id"/> | <h:outputText value="#{folder.id}"/> | <h:outputText value="#Title"/> | <h:outputText value="#{folder.title}"/> | ? | </h:panelGrid> | </t:panelTab> | | <t:panelTab label="Items"> | <h:dataTable value="#{items}" var="_item" > | <h:column> | <f:facet name="header">Item id</f:facet> | <s:link action="#{itemFinder.selectItem}" value="#{_item.id}"/> | </h:column> | <h:column> | <f:facet name="header">Type</f:facet> | <h:outputText value="#{_item.type}" /> | </h:column> | ? | </h:dataTable> | </t:panelTab> | </t:panelTabbedPane> | "itemFinder" is a SFSB the manages "items": | @DataModel("items") | List<Item> items; | | @DataModelSelection | @Out(required=false) | Item item; | | public void refresh(Folder folder) { | items = folder.getItems(); | } | Needless to say the database contains only one copy of each item. I?m using Seam 1.2.1, AS 4.0.5, MySQL 5.0 and mysql-connector-3.1.13. I would appreciate if anybody could point me in the right direction. Thanks in advance, Enrico View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4046184#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...