FailoverEvent Enumeration

FailoverEvent enumerated values are used to specify the state of the failover.

Table 11-7 lists all the FailoverEvent enumeration values with a description of each enumerated value.

Table 11-7 FailoverEvent Enumeration Values

Member Names Description


Indicates that failover has detected a lost connection and that failover is starting.


Indicates successful completion of failover.


Indicates that failover was unsuccessful, and there is no option of retrying.


Indicates that failover was unsuccessful, and it gives the application the opportunity to handle the error and retry failover. The application can retry failover by returning FailoverReturnCode.Retry for the event notification.


Indicates that a user handle has been reauthenticated. This applies to the situation where a client has multiple user sessions on a single server connection. During the initial failover, only the active user session is failed over. Other sessions are failed over when the application tries to use them. This is the value passed to the callback during these subsequent failovers.


Provider ODP.NET, Unmanaged Driver
Assembly Oracle.DataAccess.dll
Namespace Oracle.DataAccess.Client
.NET Framework 3.5, 4.0, 4.5