How To Fix OO174 - You cannot use the prefixes 'SET_' and 'GET_' in persistent classes


SAP Error Message - Details

  • Message type: E = Error

  • Message class: OO - Class Builder/API

  • Message number: 174

  • Message text: You cannot use the prefixes 'SET_' and 'GET_' in persistent classes

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Smart SAP Assistant

  • What is the cause and solution for SAP error message OO174 - You cannot use the prefixes 'SET_' and 'GET_' in persistent classes ?

    The SAP error message OO174 indicates that you are trying to use the prefixes 'SET' and 'GET' in the names of methods within a persistent class in ABAP Object-Oriented programming. This is not allowed because these prefixes are reserved for standard getter and setter methods in ABAP.

    Cause:

    The error occurs when you define methods in a persistent class (a class that is intended to be stored in the database) with names that start with 'SET' or 'GET'. The ABAP runtime environment expects these prefixes to be used for standard access methods, and using them in other contexts can lead to confusion and conflicts.

    Solution:

    To resolve this error, you should rename the methods in your persistent class to avoid using the 'SET' and 'GET' prefixes. Here are some steps you can follow:

    1. Identify the Methods: Locate all methods in your persistent class that start with 'SET' or 'GET'.

    2. Rename the Methods: Change the method names to something more descriptive that does not use these prefixes. For example:

      • Instead of GET_Name, you could use RetrieveName or FetchName.
      • Instead of SET_Name, you could use UpdateName or AssignName.
    3. Update References: After renaming the methods, ensure that you update all references to these methods throughout your codebase to reflect the new names.

    4. Test the Changes: After making the changes, thoroughly test your application to ensure that everything works as expected and that there are no broken references.

    Related Information:

    • Persistent Classes: In ABAP, persistent classes are typically used to represent database tables. They are defined using the CLASS statement and are often associated with database operations.
    • Naming Conventions: Following naming conventions is crucial in programming to maintain code readability and avoid conflicts. In ABAP, it is common to use prefixes to indicate the purpose of methods, but care should be taken to avoid reserved prefixes.
    • ABAP Documentation: For more information on ABAP object-oriented programming and naming conventions, refer to the official SAP documentation or the ABAP programming guidelines.

    By following these steps, you should be able to resolve the OO174 error and ensure that your persistent class methods are correctly named.

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