API Reference > OdDb Classes > OdDbDatabaseReactor Class
OdDbDatabaseReactor Class
OdDbDatabaseReactor
Syntax
C++
class OdDbDatabaseReactor : public OdRxObject;

DbDatabaseReactor.h

This class is the base class for custom classes that receive notification of OdDbDatabase events.

Events consist of the addition, modification, or deletion of objects from an OdDbDatabase instance. 

The default implementations of all methods in this class do nothing. 

 

 
Name 
Description 
 
This is OdDbDatabaseReactor, a member of class OdDbDatabaseReactor. 
 
Name 
Description 
 
Notification function called whenever a database is about to be deleted from memory.  
 
Notification function called whenever a database -resident system variable has changed.
 
 
Notification function called whenever a database -resident system variable is about to change.
 
 
Notification function called whenever an OdDbObject has been appended to an OdDbDatabase.
 
 
Notification function called whenever an OdDbObject has been erased or unerased.
 
 
Notification function called whenever an OdDbObject has been modified.
 
 
Notification function called whenever an OdDbObject is about to be modified.
 
 
Notification function called whenever an OdDbObject has been reappended to an OdDbDatabase by a Redo operation.
 
 
Notification function called whenever an OdDbObject has been unappended from an OdDbDatabase by an Undo operation.
 
 
This is ODRX_DECLARE_MEMBERS, a member of class OdDbDatabaseReactor. 
 
Notification function called after the specified application is loaded and all its proxy objects are resurrected.
 
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