[OmniFaces utilities (2.0)] Validate if the given component has a direct parent of the given parent type

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[OmniFaces utilities] The validateHasDirectParent() method validates if the given component has a direct parent of the given parent type.

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Method:

Usage:

You can use this method in a custom validator. Per example, let's have this JSF snippet:

<h:form id="formId">           

 <h:panelGrid style="background-color: green;">               

  <h:inputText id="nameId" value="#{playersBean.name}" validator="myValidator"/>

 </h:panelGrid>

 <h:commandButton id="btnId" value="Save" action="#{playersBean.save()}"/>

</h:form>

Now, in MyValidator we can perform the following validations:

...

@Override

public void validate(FacesContext fc, UIComponent uic, Object o) throws ValidatorException {

          

 // validate if the given component has a direct parent of type HtmlPanelGrid

 Components.validateHasDirectParent(uic, HtmlPanelGrid.class);

     

 // validate if the given component has a direct parent of type UIForm

 Components.validateHasDirectParent(uic, UIForm.class);

}

...

The first check will be a success, while the validation will fail at second check, since the uic component (aka UIInput) doesn't have a direct parent of type UIForm. So, you will get an exception like below:

API GH