How To Fix OO_SOURCE_BASED032 - The class implementation cannot be uniquely determined

SAP Error Message - Details

• Message type: E = Error

• Message class: OO_SOURCE_BASED - WB - Class Builder - Messages for the source-b. Class Editor

• Message number: 032

• Message text: The class implementation cannot be uniquely determined

What causes this issue?

The class can't be separated into its different source parts (public-,
protected-, (package-,) private section or method implementation).

System Response

A warning will be sent and the changes won't be stored.

How to fix this error?

Please check whether the source contains the following statements:
<EX>CLASS <class_name> DEFINITION.</>
<EX>...</>
<EX>ENDCLASS.</>

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

<EX>CLASS <class_name> IMPLEMENTATION.</>
<EX> METHOD <method_name_1>.</>
<EX> ...</>
<EX> ENDMETHOD.</>
<EX> ...</>
<EX> METHOD <method_name_n>.</>
<EX> ...</>
<EX> ENDMETHOD.</>
<EX>ENDCLASS.</>
<EX>It is also important to check that the public-, protected-,
(package-) and private section are in the correct order.</>
<EX>The syntax check will help you to determine where the class
structure is insufficient.</>

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OO_SOURCE_BASED032 - The class implementation cannot be uniquely determined ?

  The SAP error message OO_SOURCE_BASED032, which states "The class implementation cannot be uniquely determined," typically occurs in the context of Object-Oriented programming in ABAP when the system is unable to resolve which implementation of a method or function to use. This can happen for several reasons, including:
  Causes:
  
  Multiple Implementations: There are multiple classes that implement the same interface or inherit from the same superclass, and the system cannot determine which one to use.
  Ambiguous Method Calls: If a method is called on an object that could belong to multiple classes, and those classes have different implementations of that method, the system may not know which implementation to execute.
  Incorrect Class Hierarchy: The class hierarchy may not be set up correctly, leading to ambiguity in method resolution.
  Missing or Incorrect Type Definitions: If the type of an object is not clearly defined or is ambiguous, it can lead to this error.
  
  Solutions:
  
  Check Class Implementations: Review the classes involved to ensure that there is a clear and unambiguous implementation of the method being called. If there are multiple implementations, consider refactoring the code to avoid ambiguity.
  Use Explicit Casting: If you are dealing with polymorphism, you can explicitly cast the object to the specific class you want to use. This will help the system determine which implementation to call.
  Review Inheritance Structure: Ensure that the inheritance structure is correctly defined and that there are no unintended overlaps in method definitions.
  Check Interface Implementations: If you are using interfaces, ensure that the implementing classes are correctly defined and that there are no conflicting method signatures.
  Debugging: Use debugging tools to trace the execution and see where the ambiguity arises. This can help you identify the specific point of failure.
  
  Related Information:
  
  ABAP Object-Oriented Programming: Understanding the principles of OOP in ABAP, including inheritance, interfaces, and polymorphism, can help in diagnosing and resolving such issues.
  SAP Notes and Documentation: Check SAP Notes for any known issues or patches related to this error message. SAP's official documentation may also provide insights into best practices for class design and method implementation.
  Community Forums: Engaging with the SAP community through forums like SAP Community or Stack Overflow can provide additional insights and solutions from other developers who may have faced similar issues.
  
  By following these steps, you should be able to identify the cause of the OO_SOURCE_BASED032 error and implement a solution to resolve it.