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    <p>One possibility might be to use the <code>binding</code> attribute to access a container component from inside your managed bean and build the component tree from the java side. That way you could include only the needed components, unneeded components won't be evaluated at all.</p> <p>JSP:</p> <pre><code>&lt;h:panelGroup binding="#{managedBean.panel}"/&gt; </code></pre> <p>Managed Bean:</p> <pre><code>private UIPanel panel; // getter and setter // Action method, might also work in a @PostConstruct public String showComponent() { if (showComponent1) { UIOutput component1 = new HtmlOutputText(); component1.setValue("Hello world!"); getPanel().getChildren().add(component1); } return "viewId"; } </code></pre> <p>I haven't used this together with composite components yet, <a href="https://stackoverflow.com/questions/5370184/how-to-programmatically-or-dynamically-create-a-composite-component-in-jsf-2">this question</a> seems to have some more details and an <a href="http://confluence.highsource.org/display/Hifaces20/Dynamic+Faces+-+sample+demonstrating+dynamic+or+programmatic+UI+creation+with+JSF+2.0+and+Facelets" rel="nofollow noreferrer">example application</a> regarding using this with composite components.</p> <p><strong>Edit:</strong> Regarding your edit, you can also evaluate EL expressions in your managed bean like this:</p> <pre><code>FacesContext facesContext = FacesContext.getCurrentInstance(); ELContext elContext = facesContext.getELContext(); ExpressionFactory exprFactory = facesContext.getApplication().getExpressionFactory(); ValueExpression expr = exprFactory.createValueExpression(elContext, "#{expr}", String.class); String value = (String) expr.getValue(elContext); </code></pre>
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    1. COThis worked, although it didn't solve my particular problem I think it was a correct answer.
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    2. CO@Miguel, thanks, please see my update for an example of how to use el expressions from java code.
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    3. COHehe thanks, I already tried evaluating the ELExpression on the bean, but for some reason it didn't evaluate properly; it probably couldn't resolve the variables I was trying to access at the time the `setComponent` is called. Sometimes you just have to move on.
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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