Examples about Application Framework (Chapter 11)
zakmck Sep 5, 2007 11:42 AMHi all,
I cannot make the examples in chapter 11 working:
http://docs.jboss.com/seam/2.0.0.B1/reference/en/html/framework.html
I've started with Person and PersonHome, with the creation button only. And worked up to that point.
Then I've added update and delete, and I've added a query object, so that I can have an access point to the edit page.
What I get is: 1) Creation still works 2) when I select some item to be updated and I submit the edit form anything is updated. If I click on delete, anything is deleted either 3) After having clicked on update or delete, I am bring back to the creation page (with Create button only)
I've tried to extend update() in PersonHome, to add a logging message, and I may see the method is not called at all, same for delete. I also have tried to add a foo() action to the home, and this isn't called either.
Please find the code below. I am afraid I am missing something important.
Thanks in advance for any help.
Cheers.
Marco.
Person.java
import java.io.Serializable;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import org.jboss.seam.annotations.Scope;
import org.jboss.seam.ScopeType;
@Entity
public class Person implements Serializable {
@Id @GeneratedValue private Long id;
private String name;
public Long getId() { return id; }
public void setId(Long id) { this.id = id; }
public String getName() { return name; }
public void setName(String name) { this.name = name; }
}
PersonHome.java
import javax.ejb.Stateful;
import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.*;
import uk.ac.ebi.microarray.model.Person;
import org.jboss.seam.framework.EntityHome;
import org.jboss.seam.annotations.web.RequestParameter;
import org.jboss.seam.log.Log;
@Name("personHome")
public class PersonHome extends EntityHome<Person>
{
@RequestParameter Long personId;
@Logger private Log log;
public Long getId () {
return personId;
}
public void setId ( Long id ) {
personId = id;
}
@Factory( "person" )
public Person initPerson () { return getInstance (); }
public String update ( )
{
log.info ( ">>> Calling PersonHome.update()" );
return super.update ();
}
public String persist ( )
{
log.info ( ">>> Calling PersonHome.persist()" );
return super.persist ();
}
public String foo ( )
{
log.info ( ">>> Calling PersonHome.foo()" );
return super.update ();
}
}
person.xhtml
<!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
template="layout/template.xhtml">
<ui:define name="body">
<h1>
<h:outputText rendered = "#{!personHome.managed}" value = "New Person" />
<h:outputText rendered = "#{personHome.managed}" value = "Edit Person" />
</h1>
<h:form>
Name: <h:inputText value="#{person.name}"/><br/><br/>
<div>
<h:commandButton value="Create Contact" action="#{personHome.persist}" rendered="#{!personHome.managed}"/>
<h:commandButton value="Update Contact" action="#{personHome.update}" rendered="#{personHome.managed}"/>
<h:commandButton value="Delete Contact" action="#{personHome.remove}" rendered="#{personHome.managed}"/>
<h:commandButton value="Foo" action="#{personHome.foo}" rendered="#{personHome.managed}"/>
</div>
</h:form>
<h:messages styleClass="message"/>
</ui:define>
</ui:composition>
people.xhtml
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:s="http://jboss.com/products/seam/taglib"
template="layout/template.xhtml"
>
<ui:define name="body">
<h1>List of people</h1>
<h:dataTable value="#{people.resultList}" var="person">
<h:column>
<s:link view="/person.seam" value="#{person.name}">
<f:param name="personId" value="#{person.id}"/>
</s:link>
</h:column>
</h:dataTable>
</ui:define>
</ui:composition>
Also I have the parameter specification in pages.xml:
<page view-id="/person.xhtml">
<param name="personId" value="#{person.id}"/>
</page>
And the query spec in components.xml:
<framework:entity-query name="people" ejbql="select p from Person p"/>