public abstract Class UIComponentELTag

Implements abstract javax.faces.webapp.UIComponentClassicTagBase.createComponent.

Create and return a new child component of the type returned by calling getComponentType(). If this UIComponentELTag has a non-null binding attribute, this is done by call Application#createComponent with the ValueExpression created for the binding attribute, and the ValueExpression will be stored on the component. Otherwise, Application#createComponent is called with only the component type. Finally, initialize the components id and other properties.

Parameters

context:FacesContext

FacesContext for the current request

newId:String

id of the component

Returns:UIComponent

Doc from javax.faces.webapp.UIComponentClassicTagBase.createComponent.

the created component

Annotations

@Override

Exceptions

JspException:

Doc from javax.faces.webapp.UIComponentClassicTagBase.createComponent.

if the component cannot be created

Overrides javax.faces.webapp.UIComponentTagBase.getELContext.

Return the ELContext for the FacesContext for this request.

This is a convenience for getFacesContext().getELContext().

Returns:ELContext

Doc from javax.faces.webapp.UIComponentTagBase.getELContext.

the {code ELContext} for this FacesContext

Annotations

@Override

Implements abstract javax.faces.webapp.UIComponentClassicTagBase.hasBinding.

Doc from javax.faces.webapp.UIComponentClassicTagBase.hasBinding.

Return true if this component has a non-null binding attribute. This method is necessary to allow subclasses that expose the binding property as an Faces 1.1 style EL property as well as subclasses that expose it as an EL API property.

Returns:boolean

whether or not this component has a binding attribute

Annotations

@Override

Implements abstract javax.faces.webapp.UIComponentClassicTagBase.setProperties.

Override properties and attributes of the specified component, if the corresponding properties of this tag handler instance were explicitly set. This method must be called ONLY if the specified UIComponent was in fact created during the execution of this tag handler instance, and this call will occur BEFORE the UIComponent is added to the view.

Tag subclasses that want to support additional set properties must ensure that the base class setProperties() method is still called. A typical implementation that supports extra properties foo and bar would look something like this:

protected void setProperties(UIComponent component) {
  super.setProperties(component);
  if (foo != null) {
    component.setAttribute("foo", foo);
  }
  if (bar != null) {
    component.setAttribute("bar", bar);
  }
}

The default implementation overrides the following properties:

• rendered - Set if a value for the rendered property is specified for this tag handler instance.
• rendererType - Set if the getRendererType() method returns a non-null value.

Parameters

component:UIComponent

UIComponent whose properties are to be overridden

Annotations

@Override