Configuring a Web Dynpro Application

Purpose

At design time, you can declaratively specify several configuration properties that you want to use for configuring your Web application.

Configuration properties include:

·        Authentication
The configuration property Authentication describes a Boolean value, which specifies whether or not a Web Dynpro application requires authentication before the start. If you assigned the value true, the authentication is required when the Web Dynpro application is called. By default, no authentication is required.

·        LogoffURL
The configuration property LogoffURL specifies the HTML page to be used as the logoff page. If you do not assign a value to this configuration property, a default logoff page is used. Note that the HTML file that describes the logoff template can be referenced as any resource – for example, html/myLogoff.htm.

·        ExpirationTime
The configuration property ExpirationTime describes the lifetime in seconds of a Web Dynpro application on the server before the Web application is terminated by the server. The value that is assigned to the DefaultExpirationTime parameter in the system configuration is used as the default value.

·        Locale
The configuration property Locale specifies the language key Locale, which is used for the Web Dynpro application. The value of this property is used if the user cannot explicitly specify a property. Valid values for language keys comply with the ISO standard 639. The keys are written with two lower-case letters – for example, de for German or en for English.

Overview of Configuration Properties

Properties	Short Description	Default	Value Required	Valid Values
Authentication	If you assigned the value true to this parameter, the application requires a user authentication.	false	Yes	Boolean value is true or false
LogoffURL	Specifies the web address of a Web page, which is displayed when the user terminates the application using the key combination Alt Gr + Shift + L.	Logoff.htm file that is contained in the archive file webdynpro.wda.	Yes	Any valid absolute Web address
ExpirationTime	Specifies the lifetime in seconds of a Web application on the server before the Web application is terminated by the server.	The value of the DefaultExpirationTime parameter of the system configuration is used as the default value.	No	Any positive integer
Locale	Specifies the language key Locale, which is used for the Web Dynpro application. The value of this property can be used if the user cannot explicitly specify a property.	Default language key Locale specified in the system configuration by the sap.systemLocale parameter.	No	Valid values of the ISO standard 639

 

You can set the properties of the application configuration in the SAP NetWeaver Developer Studio. For a detailed procedure, refer to Setting Values of the Application Configuration Properties.

For some properties, the values of the Web Dynpro system configuration are adopted if you have not already set them explicitly in the application configuration. For example, the value of the DefaultExpirationTime parameter of the Web Dynpro system configuration is used if you have not assigned a value to the ExpirationTime property of the application configuration.