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  • January 26, 2015

Passing User Context When Invoking ADF BC SOAP Web Services by Steven Davelaar

Juergen Kress
PaaS Partner Adoption



ADF web applications often use session-scoped user context information that is also used in the ADF Business Components (ADF BC) layer. For example, the user language might be used to query language-specific data from the database. This article explains how this user context can be set up when accessing the ADF BC layer through its SOAP-based web service layer rather than through a web application.

Main Article

To access session information in the ADF BC layer, ADF developers typically use the ADFContext object. For example, when the preferred user language is stored on the HTTP Session under the key “userLanguage”, this information can be accessed in the ADF BC layer using the following statement:

String language = (String)ADFContext.getCurrent().getSessionScope().get("userLanguage");

This value can then be used in the prepareSession method of an application module method to set the user language in a database context package. This saves us the tedious work of passing in the user language as a bind variable to every database query.

When accessing an application module as a SOAP web service using the SDO service interface we need to set up the same data in the ADFContext to ensure the database queries can be executed correctly.This can be done by creating a SOAP Message Handler. A SOAP message handler provides a mechanism for intercepting the SOAP message and header in both the request and response of the Web service. To add a SOAP message handler to our ADF BC service interface, we add the HandlerChain annotation at the top of our application module SDO service class: Read the complete article here.

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