Helper class to notify class Record about changes. More...

#include <RecordInterface.h>

Inheritance diagram for casa::RecordNotice:

Public Types
enum	NoticeType { DETACH, ACQUIRE, REMOVE }
	Define the possible change types. More...
Public Member Functions
	RecordNotice (NoticeType changeType, uInt fieldNumber)
	Construct a notice for the given type and field number.
virtual uInt	type () const
	Returns the change type.
virtual int	operator== (const Notice &that) const
	Always returns False.
NoticeType	changeType () const
	Return the change type.
Int	fieldNumber () const
	Return the field number.
Private Attributes
NoticeType	changeType_p
uInt	fieldNumber_p

Detailed Description

Helper class to notify class Record about changes.

Intended use:

Internal

Review Status

Reviewed By:: Mark Wieringa
Date Reviewed:: 1996/04/15
Test programs:: tRecord

Prerequisite

Notice .

Synopsis

This class is of essentially no interest. The Notification system which is used to invalidate RecordFieldPtr's to a destructed or changed record requires that a class derived from Notice be available to carry messages. There are 3 messages which are described below.

Definition at line 608 of file RecordInterface.h.

Member Enumeration Documentation

enum casa::RecordNotice::NoticeType

Define the possible change types.

Enumerator:

DETACH	Record has been deleted; detach all RecordFieldPtr's.
ACQUIRE	RecordRep has been copied; re-acquire the pointers in all RecordFieldPtr's.
REMOVE	A field has been removed; detach that RecordFieldPtr and decrement field numbers in RecordFieldPtr's following it.