Partitioning Application Logic on Servers
Understanding Object Configuration Manager
9-5
Validate Data Format (client to server)
Format OK (server to client)
Send Record Detail (client to server)
Detail OK (server to client)
End Transaction (client to server)
9.3.2 Three-Tier: Network Traffic Segmentation
In a three-tier configuration, the GUI and event rules are handled by the client, but an
application server or enterprise server handles MBF processing. The database server
stores data. This processing occurs across the WAN between client and application or
enterprise server:
Input Processing Request or Data (client to server)
Return Processing Results (server to client)
This processing occurs locally across the LAN between the application or enterprise
server and the database server:
Fetch Record
Return Record
Validate Data Format
Format OK
Send Record Detail
Detail OK
End Transaction
9.3.3 Master Business Function Operations
This series of events demonstrates how a typical application uses a Master Business
Function (MBF). This example uses the Sales Order Entry application.
End of Sales Order Line
The first event occurs when the end of a sales order line is reached, causing the JD
Edwards EnterpriseOne client application to call the jdeCallObject API. This command
sends a message to the MBF. Included with the message is data (in the form of a data
structure) for the line. The application sends the message asynchronously with its
associated data; that is, once the message is sent, the client application proceeds to the
next line.
MBF Receives Line Message
This event occurs when the MBF receives the JDENet message that includes the data
for the line. The line data is cached in the server's shared memory.
MBF Extends and Edits the Line
This event occurs when the MBF extends and edits the sales order line. The data
necessary to extend and edit the line is typically accessed locally on a LAN. The data is
requested by a database-dependent SQL call and is transported by the applicable
Open Database Connectivity (ODBC) or Oracle Call Level Interface (OCI) mechanisms.