What is ABAP web Dynpro?

From a technological reason for the view, SAP's web Dynpro for Java and ABAP might be a radical stride inside the development of Web-based UIs. it's complete as opposed to any design model already used by SAP and speaks to a jump inside the development of Web-based enterprise resource planning (ERP) applications.

Web Dynpro applications are built utilizing decisive programming methods supported the Model view Controller (MVC) standard. That is, you indicate which UI components you might want to have on the customer, and wherever those components can get their data from. you furthermore might define the possible navigation methods declarative in your application. All the code to make the user interface is then generated automatically inside a standard run-time framework. This relieves you from the repetitive coding tasks concerned in writing HTML and creating it interactive with JavaScript.

ABAP web Dynpro has been out there since SAP NetWeaver 7.0 (SAP NetWeaver Application Server 7.0). For developing the entities of a web Dynpro application, the object Navigator (transaction code SE80) has been improved.

Web Dynpro is designed to support structured development. The software modularization units are web Dynpro components, which might be combined to make up advanced applications.

Web Dynpro applications will access totally different sorts of data sources:

• From an ABAP web Dynpro application, all sorts of utilizing components will be self-addressed directly (for example, function modules or methods). it's even possible to access the database via an ABAP select. However, this ends up in a compounding between flow logic and business logic and will, therefore, be omitted.

• web Services will be used when having generated a web Service client object.

• The SAP Java Connector (JCo) will be want to call methods of Enterprise JavaBeans located on a J2EE Engine.

Model objects don't seem to be however supported in ABAP web Dynpro. the most effective way to have reusable entities encapsulating business logic is to make ABAP classes containing the source code. it's additionally possible to develop UI-free (faceless) web Dynpro components, that solely offer reusable functionality. This component will then be gotten to by elective web Dynpro component by recommends that of component reuse.

Application Scenarios with Web Dynpro

Benefits of web Dynpro

Web Dynpro's primary objective is to modify application developers to make capable web applications with least exertion utilizing expressive tools in an exceptionally organized design method. One directing standard inside the web Dynpro philosophy is the fewer lines of transcribed code, the better. web Dynpro seeks after this objective in two ways in which.

• web Dynpro utilizes an explanatory, language-neutral meta model for characterizing a UI. From this conceptual definition, the development condition creates the coveted source code.Hand-written code still has its place, however, is bound to it required to manipulate the business data, not the user interface.

• web Dynpro provides technical features like support for internationalization, flicker-free interaction, and a clean separation of the business logic and also the interface. This partition is accomplished through a modified execution of the Model view Controller (MVC) outline worldview.

Since the monotonous assignments of UI writing are disposed of, the developer will concentrate his consideration on the stream of business information through the machine. web Dynpro applications will keep running on a scope of devices and on fluctuated sorts of systems an important feature for collaboration scenarios.

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