How To Fix /IBX/UIF019 - Constructor of model class &1 is PROTECTED

SAP Error Message - Details

• Message type: E = Error

• Message class: /IBX/UIF -

• Message number: 019

• Message text: Constructor of model 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/UIF019 - Constructor of model class &1 is PROTECTED ?

  The SAP error message /IBX/UIF019 Constructor of model class &1 is PROTECTED typically indicates that there is an issue with the instantiation of a model class in the SAP UI Framework. This error occurs when the constructor of the specified model 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 model 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 from outside its own context.
  Incorrect Usage: The code attempting to create an instance of the model class is not following the intended usage pattern, which may involve using a factory method or a specific initialization method provided by the class.
  
  Solution:
  
  Check Documentation: Review the documentation for the model class to understand how it is intended to be used. There may be a factory method or a static method that you should use instead of trying to instantiate the class directly.
  Use Factory Methods: If the class provides a factory method (e.g., createInstance()), use that method to obtain an instance of the class.
  Subclassing: If you need to create a subclass of the model class, ensure that your subclass has access to the constructor and can instantiate it properly.
  Refactor Code: If you have control over the model class, consider changing the constructor's visibility to public if it makes sense for your application design. However, this should be done with caution, as it may violate the intended encapsulation of the class.
  
  Related Information:
  
  SAP UI5 Documentation: Check the official SAP UI5 documentation for guidelines on model classes and their instantiation.
  Code Review: Review the code where the error occurs to ensure that you are following the correct patterns for using the model class.
  Community Forums: If you are still having trouble, consider reaching out to SAP community forums or support channels for additional assistance.
  
  By following these steps, you should be able to resolve the error and correctly instantiate the model class as intended.