Definition of a WebFlow Rule (SAP Library

Definition of a WebFlow Rule

Use

WebFlow rules are used within a workflow in the basic data and in the Web activity step type. Using a WebFlow rule you can individually execute the following parts of a Web activity:

Determination of URL
Preparation of the XML document
Determination of the authentication data
Execution of the send procedure
Determination of transfer format

Prerequisites

To use a WebFlow rule, you must create an ABAP class. Depending on the type of the WebFlow rule, this class must support the following interfaces:

WebFlow Rule Type	Necessary Interface
WebFlow: Authentication	IF_SWF_XML_RULE_AUTHENTICATE
WebFlow: Sending	IF_SWF_XML_RULE_DATA_SEND
WebFlow: Preparation of the XML document	IF_SWF_XML_RULE_DATA_SET
WebFlow: URL determination	IF_SWF_XML_RULE_URL
WebFlow: Determine format (if group)	IF_SWF_XML_RULE_FORMAT

To see an example implementation, see the ABAP class CL_SWF_DEMO_WEBACTIVITY.

Note

At the moment the rule type WebFlow: Signature is only used internally.

Features

If you use a WebFlow rule in a Web activity, the execution of the rule replaces the usual process. Depending on the type of the WebFlow rule, the system automatically transfers particular data. For more information, see the appropriate interface documentation.

Note

In the WebFlow rules Send data and Prepare XML document, you can also make use of the standard process, executing your own process only in particular cases. The methods for doing this are available in the class CL_WAPI_WEBFLOW_SERVICES.

Activities

You create a WebFlow rule by accessing the Rule: Change or Rule: Create screen. Enter the abbreviation and the name of the rule, and select a rule type. Under Object type name, enter the ABAP class you created for the rule. You must transfer all additional data that you need for execution via the rule container. For more information, see Creating Rule Containers.