How To: Pass parameters to action listener in ADF

I have commonly come across the requirement to pass parameters to the managed bean method on a button click. The challenge we normally face here is that, the methods attached to the "action" or "actionListener" have fixed signatures that cannot be changed.

Thus, we have to leverage the "<f:attribute>" tag alongwith a "actionListener"

	<!-- Define button with an action listener -->
	<af:commandButton text="Search" id="cb6"
	actionListener="#{ManagedBean.executeSearch}" partialSubmit="true">
	<!-- Set parameter value -->
	<f:attribute name="VENDOR_NUM" value="#{bindings.vendorNumber.inputValue}"/>
	</af:commandButton>

view raw adf-action-listener-button.xml hosted with ❤ by GitHub

	public class ManagedBean{
	public void executeSearch(ActionEvent actionEvent) {
	/* GET parameter value */
	String vendorNum = (String)actionEvent.getComponent().getAttributes().get("VENDOR_NUM");
	}
	}

view raw adf-action-listener-param.java hosted with ❤ by GitHub

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