Error reading 'managed' on type ...
Hello,
To get familiar with the application framework of Seam, I extended the registration example by the code fragments of the application framework chapter of the Seam reference manual. Everything seems to be fine. Unfortunately I am getting the following error when I want to update or delete a data record:
Error reading 'managed' on type org.jboss.seam.example.registration.PersonHome$$javassistseam2
I changed the following in the registration example:
- Entity manager registered in persitence.xml
- Persistence context registered in components.xml
- Person.java and PersonHome.java created
- pages.xml added to WEB-INF
- personEditor.xhtml added to war
Searching the web for this error message links all the time to the old seam-gen issue. Doing it a second time didn't help eather.
Any ideas or suggestions to solve this issue?
Thank you in advance for your help.
Please find below the files I changed or added:
persistence.xml:
<?xml version="1.0" encoding="UTF-8"?> <persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" version="1.0"> <persistence-unit name="userDatabase"> <provider>org.hibernate.ejb.HibernatePersistence</provider> <jta-data-source>java:/DefaultDS</jta-data-source> <properties> <property name="hibernate.hbm2ddl.auto" value="create-drop"/> <property name="jboss.entity.manager.factory.jndi.name" value="java:/EntityManagerFactories/personData"/> </properties> </persistence-unit> </persistence>
components.xml:
<?xml version="1.0" encoding="UTF-8"?>
<components xmlns="http://jboss.com/products/seam/components"
xmlns:core="http://jboss.com/products/seam/core"
xmlns:persistence="http://jboss.com/products/seam/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation=
"http://jboss.com/products/seam/core http://jboss.com/products/seam/core-2.2.xsd
http://jboss.com/products/seam/persistence http://jboss.com/products/seam/persistence-2.2.xsd
http://jboss.com/products/seam/components http://jboss.com/products/seam/components-2.2.xsd">
<core:init jndi-pattern="jboss-seam-registration/#{ejbName}/local"/>
<persistence:managed-persistence-context name="personDatabase" auto-create="true" persistence-unit-jndi-name="java:/EntityManagerFactories/personData"/>
</components>Person.java:
package org.jboss.seam.example.registration;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
@Entity
public class Person {
@Id
@GeneratedValue
private Long id;
private String firstName;
private String lastName;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
}PersonHome.java:
package org.jboss.seam.example.registration;
import javax.persistence.EntityManager;
import org.jboss.seam.annotations.Factory;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.framework.EntityHome;
@Name("personHome")
public class PersonHome extends EntityHome<Person> {
private static final long serialVersionUID = -5065906765292941496L;
@In EntityManager personDatabase;
public EntityManager getEntityManager() {
return personDatabase;
}
@Factory("person")
public Person initPerson() {
return getInstance();
}
}pages.xml:
<?xml version="1.0" encoding="UTF-8"?>
<pages xmlns="http://jboss.com/products/seam/pages"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://jboss.com/products/seam/pages http://jboss.com/products/seam/pages-2.2.xsd"
no-conversation-view-id="/editPerson.xhtml"
login-view-id="/home.xhtml">
<page view-id="/editPerson.xhtml">
<param name="personId" value="#{personHome.id}"/>
</page>
<page view-id="*">
<navigation from-action="#{identity.logout}">
<redirect view-id="/home.xhtml"/>
</navigation>
<navigation from-action="#{hotelBooking.cancel}">
<redirect view-id="/main.xhtml"/>
</navigation>
</page>
<exception class="org.jboss.seam.security.NotLoggedInException">
<redirect view-id="/home.xhtml">
<message severity="warn">You must be logged in to use this feature</message>
</redirect>
</exception>
<exception class="javax.faces.application.ViewExpiredException">
<redirect view-id="/home.xhtml">
<message severity="warn">Session expired, please log in again</message>
</redirect>
</exception>
</pages>editPerson.xhtml:
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:s="http://jboss.com/products/seam/taglib"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core">
<head>
<title>Register New User</title>
</head>
<body>
<f:view>
<h1>
<h:outputText rendered="#{!personHome.managed}" value="Create Person"/>
<h:outputText rendered="#{personHome.managed}" value="Edit Person"/>
</h1>
<h:form>
<div>First name: <h:inputText value="#{person.firstName}"/></div>
<div>Last name: <h:inputText value="#{person.lastName}"/></div>
<div>
<h:commandButton value="Create Person" action="#{personHome.persist}" rendered="#{!personHome.managed}"/>
<h:commandButton value="Update Person" action="#{personHome.update}" rendered="#{personHome.managed}"/>
<h:commandButton value="Delete Person" action="#{personHome.remove}" rendered="#{personHome.managed}"/>
</div>
</h:form>
</f:view>
</body>
</html>
