RichFaces Interview Questions and Answers

Question: What is <a4j:support> tag?

Answer: Sends an AJAX request based on a DHTML event supported by the parent component. In this example, the AJAX request will be triggered after the user types a character in the text box:

<h:inputText value="#{document.docOrigtor}" id="docClaimOrigId" binding="#{handler.docOrig}">

<a4j:support actionListener="#{handler.createDocumentName}" event="onkeyup" reRender="docId"/>

</h:inputText>

Here, on keyup event it will call handler.createDocumentName method with ajax call and rendering docId value.

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