PageDAOBean.java
[...]
public int countAllPages(){
Query q = em.createQuery("SELECT count(p) FROM Page p");
Number result = (Number) q.getSingleResult();
return result.intValue();
}
[...]
Pages.java (a JSF helper class)
[...]
public int countAll(){
return pb.countAllPages();
}
[...]
pages.xhtml (JSF)
[...]
<ui:fragment rendered="#{pages.countAll() == 0}" >
<h:outputText value="No pages yet. Why not add a page now?" />
</ui:fragment>
<ui:fragment rendered="#{pages.countAll() > 0}" >
Doing now :-)
</ui:fragment>
[...]
I have been using this pattern on each of the list pages. If you know of a better way, feel free to let me know.
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