Webdynpro with ABAP

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Webdynpro ABAP
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Contents

• Introduction of WebDynpro
• MVC Architecture
• Difference between JAVA and ABAP Webdynpro
• WDA Components and layout
• Sample WD Application

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INTRODUCTION

• Web Dynpro for ABAP(WD4A, WDA) is the SAP
  standard UI technology for developing Web
  applications in the ABAP environment.
• Consists of a graphical development environment
  with special Web Dynpro tools that are integrated
  in the ABAP Workbench (SE80).
• Webdynpro applications are built based on MVC
  architecture.

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MVC Architecture

• MVC Or "Model View Controller"
• Model enables the WD App to fetch data from
  database or post data into database.
• View contains User Interface which helps to
  display or accept data.
• Controller is a medium to connect model and
  view.

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Difference between JAVA and ABAP Webdynpro

• In WDA we use ABAP coding to get data but in
  Webdynpro JAVA we need RFC's or Webservices to
  get the data.
• In WDA the code is stored centrally in the ABAP
  server, so it relieves the load from developers
  machine where the code is stored in the case of
  Webdynpro JAVA.
• Webdynpro JAVA runs on J2EE engine which can
  support more number of web users at a time.

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WDA Explorer

• SE 80

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Webdynpro View Editor
Layout Tab
Toolbar to drag and dropUI element selection
Menu by selectingInsert Element
View of context menu from Change selection
Properties of the UI element
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WebDynpro Components

• WebDynpro Components
• Windows
• Views
• Layout
• Context
• Methods
• Component Controllers
• Context
• Events

Window
Component Controller
View Controller
View
Context
Context
View Controller
View
Context
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Context and Data Transport

• Context
• Like a data
• container.
• Data Transport
• between
• controllers can
• be established
• with mapping
• defintion.

Window
Component Controller
View Controller
View
Context
Root Node
Context
Node 1
Root Node
Node 1
View Controller
View
Context
Node 2
Root Node
Node 3
Node 3
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Data Binding Process
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Navigation between Views
Window
Customer List
CustomerSearch
Out
In
Inbound plug
Outbound plug
Navigation link
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Questions ?
Email Us _at_ support_at_architectsap.com 
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