What is 'controller' in SAP BC-BSP - Business Server Pages?

controller - Overview

• Component: BC-BSP

• Component Name: Business Server Pages

• Description: Object in the model view controller MVC programming model A controller is responsible for data transfer, request processing, and view control. You can create a controller in the Web Application Builder as a subobject of your BSP application, and assign a URL and the implementation controller class to it.

controller - Details

• 
  Key Concepts: 
  A controller is a component of the Business Server Pages (BSP) application programming interface (API) in SAP. It is responsible for managing the flow of data between the user interface and the business logic layer. The controller is responsible for handling user input, validating it, and then passing it to the appropriate business logic layer. It also handles the response from the business logic layer and passes it back to the user interface. 
  
  How to use it: 
  The controller is used to manage the flow of data between the user interface and the business logic layer. It is responsible for handling user input, validating it, and then passing it to the appropriate business logic layer. It also handles the response from the business logic layer and passes it back to the user interface. 
  
  Tips & Tricks: 
  When using controllers in SAP, it is important to ensure that all user input is validated before being passed to the business logic layer. This will help prevent any malicious or incorrect data from being passed to the business logic layer, which could cause errors or security issues. Additionally, controllers should be designed in such a way that they are easy to maintain and update as needed. 
  
  Related Information: 
  For more information on controllers in SAP, please refer to SAP's official documentation on Business Server Pages (BSP).