IBM Integration Bus, Version 9.0.0.8 Operating Systems: AIX, HP-Itanium, Linux, Solaris, Windows, z/OS

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Inbound processing for the ALE interface

The adapter supports inbound processing (from the SAP server to the adapter) for the ALE interface and the ALE pass-through IDoc interface.

When you are configuring a module for the ALE interface or the ALE pass-through interface, you indicate whether the IDocs are sent as a packet and, for the ALE interface, you can specify whether they are sent parsed or unparsed. You make these selections in the Adapter Connection wizard. When you use the ALE pass-through IDoc interface, the Message tree contains a BLOB field that represents the IDoc. No separate IDoc business object exists for pass-through IDocs.

The following list describes the sequence of processing actions that result from an inbound request using the ALE interface.

The adapter starts event listeners to the SAP server.
Whenever an event occurs in SAP, the event is sent to the adapter through the event listeners.
The adapter converts the event into a business object before sending it to the endpoint.

The adapter uses the event recovery mechanism to track and recover events in case of abrupt termination. The event recovery mechanism uses a data source for persisting the event state.

The following table provides an overview of the differences between the ALE interface and the ALE pass-through IDoc interface for inbound processing.

Interface	When to use	SplitIDoc = true	SplitIDoc = false	Parsed IDoc = true
ALE inbound	This interface converts the raw incoming IDocs to business objects, which are readily consumable by the client at the endpoint.	On receiving the IDoc packet from SAP, the adapter converts the IDocs to business objects, one by one, before sending each one to the endpoint.	On receiving the IDoc packet from SAP, the adapter converts the IDocs in the packet as one business object before sending it to the endpoint.	The incoming IDoc is only partially parsed (the control record of the IDoc is parsed but the data record is not). The client at the endpoint is responsible for parsing the data record.
ALE pass-through IDoc	This interface wraps the raw incoming IDoc in a business object before delivering it to the client at the endpoint. The client is responsible for parsing the raw IDoc.	On receiving the IDoc packet from SAP, the adapter wraps each raw IDoc in a business object before sending the objects, one by one, to the endpoint.	On receiving the IDoc packet from SAP, the adapter wraps the raw IDoc packet in a business object before sending it to the endpoint.	This attribute is not applicable to the ALE pass- through IDoc interface. (Neither the control record nor the data record of the IDoc is parsed.)

For more information, see the following topics.

csap_inboundproc.htm |

Last updated Friday, 21 July 2017