Databases
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    <p><a href="http://java.sun.com/javaee/javaserverfaces/1.1_01/docs/api/javax/faces/context/FacesContext.html#addMessage(java.lang.String,%20javax.faces.application.FacesMessage)" rel="noreferrer">FacesContext.addMessage(String, FacesMessage)</a> requires the component's <strong>clientId</strong>, <em>not</em> it's <strong>id</strong>. If you're wondering why, think about having a control as a child of a dataTable, stamping out different values with the same control for each row - it would be possible to have a different message printed for each row. The <strong>id</strong> is always the same; the <strong>clientId</strong> is unique per row.</p> <p>So "myform:mybutton" is the correct value, but hard-coding this is ill-advised. A lookup would create less coupling between the view and the business logic and would be an approach that works in more restrictive environments like portlets.</p> <pre><code>&lt;f:view&gt; &lt;h:form&gt; &lt;h:commandButton id="mybutton" value="click" binding="#{showMessageAction.mybutton}" action="#{showMessageAction.validatePassword}" /&gt; &lt;h:message for="mybutton" /&gt; &lt;/h:form&gt; &lt;/f:view&gt; </code></pre> <p>Managed bean logic:</p> <pre><code>/** Must be request scope for binding */ public class ShowMessageAction { private UIComponent mybutton; private boolean isOK = false; public String validatePassword() { if (isOK) { return "ok"; } else { // invalid FacesMessage message = new FacesMessage("Invalid password length"); FacesContext context = FacesContext.getCurrentInstance(); context.addMessage(mybutton.getClientId(context), message); } return null; } public void setMybutton(UIComponent mybutton) { this.mybutton = mybutton; } public UIComponent getMybutton() { return mybutton; } } </code></pre>
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    1. POHow to display my application's errors in JSF?
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    1. CORead the OP, the validator model can't be applied to this situation.
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    2. COMore stuff on using clientIds: http://illegalargumentexception.blogspot.com/2009/02/jsf-working-with-component-ids.html
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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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