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JSF – ComboBox

Man muss zurerst eine Liste aller Einträge in Datenbank haben.
Dann in einem Stateful-Bean


@SuppressWarnings("unchecked")
public List getKundengruppeList(){
return entityManager.createQuery("select c from Kundengruppe c")
.setHint("org.hibernate.cacheable", true)
.getResultList();
}

Jetzt kann man ComboBox in seiner XHTML-Datei benutzen.

<h:selectOneMenu value=”#{artikel.artikelgruppeId} styleClass=”middle”>
<s:selectItems  value=”#{stammdatenSuggestion.getArtikelgruppeList()}”
var=”item” label=”#{item.name}”
noSelectionLabel=”#{messages[‘general.value.None’]}”
hideNoSelectionLabel=”false” />
<s:convertEntity />
</h:selectOneMenu>

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