returns the result of interpretting the object as an instance of ` named column set ' . this implementation returns null ; returning a non-null result will terminate the switch . concode_field_sep ViewPackage modelPackage concode_field_sep T caseView concode_elem_sep T caseSchemaElement concode_elem_sep T caseColumn concode_elem_sep T caseViewColumn concode_elem_sep T caseViewExpressionColumn concode_elem_sep T doSwitch concode_elem_sep T doSwitch concode_elem_sep T doSwitch concode_elem_sep T caseReferencedViewColumn concode_elem_sep T caseElement concode_elem_sep T caseViewAlias concode_elem_sep T defaultCase concode_elem_sep T caseNamedElement
T function ( NamedColumnSet arg0 ) { return null ; }