The OraServer
interface exposes the connection multiplexing feature provided in the Oracle Call Interface. After an OraServer
object is created, multiple user sessions (OraDatabase
) can be attached to it by invoking the OpenDatabase
method. This feature is particularly useful for application components, such as Internet Information Server (IIS), that use Oracle Objects for OLE in n-tier distributed environments. The use of connection multiplexing when accessing Oracle databases with a large number of user sessions active can help reduce server processing and resource requirements while improving the database scalability.
As illustrated in Figure 9-1, the OraServer
interface contains a connection to an Oracle database and provides a method (OpenDatabase
) for creating user sessions (OraDatabase
objects) on the database connection it contains.
Figure 9-1 OraServer to Oracle Database Relationship