How To Fix /IBX/UIF040 - Constructor of view class &1 is PROTECTED

SAP Error Message - Details

• Message type: E = Error

• Message class: /IBX/UIF -

• Message number: 040

• Message text: Constructor of view class &1 is PROTECTED

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IBX/UIF040 - Constructor of view class &1 is PROTECTED ?

  The SAP error message /IBX/UIF040 Constructor of view class &1 is PROTECTED typically indicates that there is an issue with the instantiation of a view class in the SAP UI Framework. This error occurs when the constructor of the specified view class is declared as PROTECTED, which means that it cannot be instantiated directly outside of its own class or its subclasses.
  Cause:
  
  Protected Constructor: The view class you are trying to instantiate has a constructor that is marked as PROTECTED. This is a common design pattern in object-oriented programming to prevent direct instantiation of a class.
  Incorrect Usage: The code attempting to create an instance of the view class is not within a subclass or is not using a factory method that is allowed to create instances of that class.
  
  Solution:
  
  Check Class Definition: Review the definition of the view class to confirm that the constructor is indeed PROTECTED. You can do this by looking at the class in the ABAP Workbench (SE80 or SE24).
  Use a Factory Method: If the class is designed to be instantiated through a factory method, ensure you are using that method instead of trying to instantiate the class directly.
  Subclassing: If you need to create an instance of the class, consider creating a subclass that can access the PROTECTED constructor.
  Review Documentation: Check the documentation for the specific view class to see if there are recommended practices for instantiation.
  
  Related Information:
  
  ABAP Class Visibility: In ABAP, class visibility (PUBLIC, PROTECTED, PRIVATE) controls how and where classes and their members can be accessed. Understanding these concepts is crucial for working with object-oriented programming in ABAP.
  SAP UI Framework: Familiarize yourself with the SAP UI Framework and its design patterns, as this will help you understand how to properly work with view classes and their instantiation.
  Debugging: If you are unsure where the instantiation is happening, you can use the ABAP debugger to trace the execution and find the point where the error occurs.
  
  By following these steps, you should be able to resolve the error and understand the underlying principles that led to it.