DataTable Conditional Row Messages

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DataTable supports 'supplementary' rows rendered on a condition; either at particular interval, before or after a column-value grouping, on based on the result of an application defined conditon. This tutorial demonstrates the last technique, defining a condition that renders the supplementary row following a row whose h:outputText component has an attached FacesMessage.

We will cover the definition of the 'normal' row, 'supplementary' row and the predicate that determines row rendering based on FacesMessage presence.

The attachement of the FacesMessage to the component is merely to demonstrate the technique, and will not be covered in detail.

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