public static Attribute < ? > createEmptyAttribute ( AbstractAttributeInfo attrInfo ) { if ( attrInfo instanceof PrimitiveAttributeInfo ) { return createEmptyPrimitiveAttribute ( ( PrimitiveAttributeInfo ) attrInfo ) ; } else if ( attrInfo instanceof AssociationAttributeInfo ) { return createEmptyAssociationAttribute ( ( AssociationAttributeInfo ) attrInfo ) ; } return null ; }
Creates an empty attribute . An empty attribute is an attribute which has null as its value .