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OmniFaces is an utility library for JSF, including PrimeFaces, RichFaces, ICEfaces ...









[OmniFaces Utilities] - Find the right JSF OmniFaces 2 utilities methods/functions

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vineri, 20 februarie 2015

[OmniFaces utilities (2.0)] Get whether the given editable value holder component has a submitted value

[OmniFaces utilities] The hasSubmittedValue() method returns whether the given editable value holder component has a submitted value.

As you can see an empty value is considered a null value or an empty string.


JSF Page
<h:form id="myForm">
 <h:inputText id="nameId" value="..."/>

import org.omnifaces.util.Components;
UIInput  uiinput = (UIInput)Faces.getViewRoot().findComponent("myForm:nameId");
boolean hasSubmittedValue = Components.hasSubmittedValue(uiinput);

If you follow a simple postback scenario then the above method will return the results from figure below for non-empty submitted value:

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