selectOne

[konikoni]

I don's now what i do wrong:

@Name("fahrzeugact")
@Stateful
public class Fahrzeug implements FahrzeugInterface {
 @DataModel
 private List<Hersteller> hrList;

 @DataModelSelection("hrList")
 private Hersteller selectedHer;

 @PersistenceContext
 private EntityManager em;

 @In(required=false)
 private Hersteller hersteller;

 @Begin(join=true)
 @Factory("hrList")
 public void getHer(){
 hrList = em.createQuery("from Hersteller where akzept = true").getResultList();

 }
 public void setModel(){
 System.out.println("--------------- ");
 }

 @End
 public void reset() {}

 @Destroy
 @Remove
 public void destroy() {}
}

}

 <a4j:region>
 <s:div id="frm">
 <a4j:form>

 <h:selectOneMenu value="#{hersteller}" required="true">
 <s:convertEntity />
 <s:selectItems value="#{hrList}" var="her" label="#{her.bezeichnung}" noSelectionLabel="Bitte waehlen..."/>
 <a4j:support event="onchange" action="#{fahrzeugact.setModel}"/>
 </h:selectOneMenu>


 </a4j:form>
 </s:div>
 </a4j:region>

 <a4j:region>
 <s:div id="msg"><h:messages globalOnly="false"/> </s:div>
 </a4j:region>

I get i error "Invalid Value".

[stu2]

"KoniKoni" wrote:
I don's now what i do wrong:

 <a4j:region>
 <s:div id="frm">
 <a4j:form>

 <h:selectOneMenu value="#{hersteller}" required="true">
 <s:convertEntity />
 <s:selectItems value="#{hrList}" var="her" label="#{her.bezeichnung}" noSelectionLabel="Bitte waehlen..."/>
 <a4j:support event="onchange" action="#{fahrzeugact.setModel}"/>
 </h:selectOneMenu>


 </a4j:form>
 </s:div>
 </a4j:region>

I get i error "Invalid Value".

For one it looks like you want <h:selectOneMenu value="#{selectedHer}" required="true">


Take a look at the ui example application to see this stuff working in action.

[konikoni]

if declared the List in componets.xml does work,

but i have to select the second selectOne by parameter form the first selectOne

and the ui example don't provide such, or i don't understand it?

[konikoni]

I want to make follow:

User choise from a selectOneMenu a category

and the select selectOneMenu shows the films of selected category,

how can i make that, the ui example provide just declarations from conponents.xml?

[cdigiovanni]

hello, i have the same problem. If you got a solution to the problem can you post it? Thank you!

[pmuir]

KoniKoni, take a look at the ui example in CVS, it shows the country selectOneRddio being populated from a property of continent.

[konikoni]

This stuff just functions with EnityHome. Shoud be the EntityBean for selectOne from EtityHome extended?

[pmuir]

No, you never extend an entity from EntityHome. EntityHome is part of the Seam Application Framework (see the documentation.

I wrote the example using the framework but it works just fine without it (all the framework is doing is making it easier to do persistence - update and queries).

You'll probably find it much easier to get this working without a4j and then add it in later - it works fine with a4j:support, doing what you want.

[konikoni]

I used follow code:

<framework:entity-home name="kfzHome" entity-class="kk.rentform.entity.Kfz" />


without extending from HomeEntity doesn't work.

Probably because i used <s:convertEntity />?

[konikoni]

If i defined follow:

<framework:entity-home name="kfzHome" entity-class="kk.rentform.entity.Kfz" />

how can i include this entity home with @In annotation?

[pmuir]

@In EntityHome kfzHome

Nothing in seam-ui is dependant on the framework.