resourceRef Inheritance and Overriding

By default, a derived component inherits the <resourceRef> element of its base component.

A derived component may override the modifier and <resource> element of a non-final inherited <resourceRef> element by re-declaring the <resourceRef> element. When a <resourceRef> element is overridden, the <installSpec> element is omitted, as its contents may not be overridden. The <resource> element is specified if and only if the overriding <resourceRef> is non-abstract.

When a <resourceRef> is overridden, then all uses of the resource (including <deployResource> and <addResource>) will resolve to the overridden value, including uses within the base component.

If the derived component is declared as non-abstract, and the <resourceRef> element of the base component is abstract, then the derived component must override the <resourceRef> element.