[jboss-user] [JBoss Seam] - simple entity-home framework component not working

kaiwitte do-not-reply at jboss.com
Wed Jul 25 08:33:31 EDT 2007


I am using Seam 1.2.0.PATCH1 with Tomcat 5.5. When I try to access an entity home from within a JSF site I get an exception 
javax.servlet.ServletException: entityManager is null at page request time. The stack trace does not contain any of my classes.


  | <h:inputText value="#{userHome.instance.name}"/>
  | <h:commandButton value="Create User" action="#{userHome.persist}"/>

The components.xml:

  | <framework:entity-home name="userHome" entity-class="test.User" />

The entity:

  | @Entity
  | public class User implements Serializable {

In some other bean I use an injected @PersistenceContext successfully to retrieve all Users from the database.

When I remove the line in components.xml and instead extend EntityHome (with an empty class body) the error at page request time is "javax.servlet.ServletException: In attribute requires non-null value".

What can I do about it? What did I do wrong?


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