returns the result of interpretting the object as an instance of ` table column ' . this implementation returns null ; returning a non-null result will terminate the switch . concode_field_sep RdbPackage modelPackage concode_field_sep T caseTable concode_elem_sep T caseSchemaElement concode_elem_sep T caseColumn concode_elem_sep T doSwitch concode_elem_sep T doSwitch concode_elem_sep T doSwitch concode_elem_sep T caseSchema concode_elem_sep T caseElement concode_elem_sep T caseModel concode_elem_sep T defaultCase concode_elem_sep T caseNamedElement concode_elem_sep T caseNamedColumnSet
T function ( TableColumn arg0 ) { return null ; }