How To Fix OO699 - SET-/GET-Methods are provided only for Private/Protected attributes

SAP Error Message - Details

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 699

• Message text: SET-/GET-Methods are provided only for Private/Protected attributes

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message OO699 - SET-/GET-Methods are provided only for Private/Protected attributes ?

  The SAP error message OO699 indicates that there is an issue with the use of SET and GET methods in relation to the visibility of attributes in an ABAP class. This error typically arises when you attempt to use these methods on public attributes, which is not allowed in the context of object-oriented programming in ABAP.
  Cause:
  The error occurs because:
  
  In ABAP, SET and GET methods are designed to encapsulate access to private or protected attributes of a class. 
  If you try to define SET or GET methods for public attributes, the ABAP runtime will raise this error, as it violates the principles of encapsulation.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Change Attribute Visibility:
  
  If the attributes are meant to be accessed via SET and GET methods, change their visibility from public to private or protected. This way, you can use the methods to control access to these attributes.
  
  CLASS my_class DEFINITION.
    PRIVATE SECTION.
      DATA: my_attribute TYPE string.
    PROTECTED SECTION.
      METHODS: set_my_attribute IMPORTING value TYPE string,
               get_my_attribute EXPORTING value TYPE string.
  ENDCLASS.
  
  CLASS my_class IMPLEMENTATION.
    METHOD set_my_attribute.
      my_attribute = value.
    ENDMETHOD.
  
    METHOD get_my_attribute.
      value = my_attribute.
    ENDMETHOD.
  ENDCLASS.
  
  
  Remove SET/GET Methods:
  
  If the attributes are intended to be public and do not require encapsulation, you can simply remove the SET and GET methods and access the attributes directly.
  
  CLASS my_class DEFINITION.
    PUBLIC SECTION.
      DATA: my_attribute TYPE string.
  ENDCLASS.
  
  
  Use Access Modifiers Appropriately:
  
  Ensure that you are using access modifiers (public, protected, private) appropriately based on your design requirements. Public attributes can be accessed directly, while private and protected attributes should be accessed through methods.
  
  
  
  Related Information:
  
  Encapsulation: This is a fundamental principle of object-oriented programming that restricts direct access to some of an object's components. It helps to protect the integrity of the object's state.
  ABAP Classes: Understanding the structure of ABAP classes, including sections (public, protected, private) and methods, is crucial for effective programming in ABAP.
  Best Practices: It is generally a good practice to keep attributes private or protected and provide public methods for accessing and modifying them. This approach enhances maintainability and reduces the risk of unintended side effects.
  
  By following these guidelines, you should be able to resolve the OO699 error and design your ABAP classes more effectively.