Informix Error -4035: Function "name" cannot be redefined in a derived class "class" with different access permissions.

Reasons / Common Causes

-4035 fires when a derived class redefines an inherited function with a different access permission than its parent declared — per the official guidance, the parent class's function has a PRIVATE, PROTECTED, or PUBLIC permission different from this declaration.

1. A redefined function's access permission doesn't match its base-class declaration, per the official guidance — the direct, only cause.

Solutions / Resolution

1. Match the redefined function's access permission to its base-class declaration.

Examples

A mismatched access permission on override

CLASS Base
  FUNCTION PUBLIC save()
    ...
  END FUNCTION
END CLASS

CLASS Derived DERIVED FROM Base
  FUNCTION PRIVATE save()
    -- -4035: Base declares save() PUBLIC, not PRIVATE
  END FUNCTION
END CLASS

Corrected

CLASS Derived DERIVED FROM Base
  FUNCTION PUBLIC save()
    ...
  END FUNCTION
END CLASS

Diagnostic Checks

1. Check the base class's access permission for the function being redefined, and match it in the derived class.

Related Errors / Related Topics

• -4036 — "Function "name" cannot be redefined in a derived class "class" with different scope of reference." A related function-redefinition error, about mismatched SHAREDness rather than mismatched access permission.

A redefined function's access permission doesn't match its base class's declaration — make them match.