RichFaces <a4j:param>It combines the functionalities of the JavaServer Faces ( JSF) components <f:param> and <f:actionListener>. It can be used with non-Ajax components in addition to Ajax components. It includes components such as the <h:link> and <h:button> components. The <a4j:param> requires the following attributes.
ExampleHere, in the following example, we are implementing <a4j:param> component. This example contains the following files. JSF File// ajax-param.xhtml Managed Bean// User.java Output: A new parameter is set after clicking the button.
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