IBM WebSphere Multichannel Bank Transformation Toolkit, Version 7.1

Forward records matching a specified criteria

The sequence diagram for forwarding records that match a specific criteria is shown below. The last three messages from the ForwardingServerOperation show the communication that occurs when the host returns a failed or timeout response.

UML sequence diagram. See the flow of events that follows.

Flow of events
  1. The forwarder application calls the ForwardingServerOperation, passing in a String representation of a WHERE clause. The argument represents the search criteria for querying the STORE table through the Store service.
  2. The ForwardingServerOperation retrieves the first query record from the STORE table.
  3. The retrieved record, which is a hash table, is unformatted and mapped to the context data elements.
  4. The forwarder uses the Common Communications service to send the host request.
  5. Upon receipt of a successful host response, the forwarder unformats the host response and updates the context before returning the host response to the ForwardingServerOperation.
  6. When the ForwardingServerOperation receives a successful host response, it deletes the record of the stored operation from the StoreService and commits the stored operation. See subflow 6.1 below.
  7. The result of the retrieved, forwarded, and committed stored operation is updated in the Electronic Journal table. See subflow 7.1 below.
  8. The ForwardingServerOperation retrieves the next record for forwarding. The next record is one for which forwarding has not already been tried, but has failed.
  9. Steps 3-8 are repeated until the last row of results has been processed.

Subflows

6.1 A failed or timeout host response message rolls back the store operation in the STORE table.

7.1 The result of the retrieved, forwarded, and rolled-back store operation is updated in the Electronic Journal table.



Feedback