| Returns the ordinal value of a containment property.
RDF containers use properties of the form _1, _2, _3 etc to represent
the containment relationship between the container and the objects it
contains. When invoked on such a containment property, this method
returns the integer part of the property name. When invoked on other
properties, it returns 0.
The ordinal value of a containment property,or 0 otherwise. |