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• IN SIMULATION MODE COMMIT ENTITIES
COMMIT ENTITIES, IN SIMULATION MODE
ABAP_SYNTAX COMMIT ENTITIES ... IN SIMULATION MODE ...
What does it do? Optional addition of COMMIT ENTITIES statements that allows a RAP transaction to be checked. It processes the RAP early save phase only and without actually saving data. A final COMMIT WORK is not implicitly included with this variant. The consistency of the transaction can be checked by evaluating the value of sy-subrc as a result of executing the commit in simulation mode.
Use Case A use case of COMMIT ENTITIES statements with the addition IN SIMULATION MODE might be as follows:
A non-RAP application modifies data. It needs to persist the data and has its own save logic. Furthermore, it is responsible for the final saving of data from within an SAP LUW, i. e. once the SAP LUW is finalized with COMMIT WORK .
If other RAP implementations are involved and part of the SAP LUW before this COMMIT WORK, for example, due to new features added or due to a redesign or refactoring, it must be ensured that the overall SAP LUW is consistent with regards to saving.
RAP implementations whose save sequence is usually triggered with a COMMIT ENTITIES statement, i. e. without the addition IN SIMULATION MODE, process the complete save sequence automatically including the actual saving. This might lead to inconsistencies because of a potentially incomplete execution of COMMIT WORK while the RAP BOs are already saved with a COMMIT ENTITIES statement.
Similarly, inconsistencies can occur if data gets saved from a non-RAP application first and then RAP BOs cannot be saved due to issues. A complete checking of all involved data is not possible.
To overcome these potential inconsistencies, the addition IN SIMULATION MODE of the COMMIT ENTITIES statement simulates the saving of the RAP BOs to check the consistency and whether issues occur.
If there are no issues with saving the RAP BOs (indicated by the value 0 of sy-subrc following the statement), the saving of all involved (RAP and non-RAP) components from within the SAP LUW can be executed using COMMIT WORK that is triggered by the non-RAP application.
If problems show up following the consistency check (indicated by a value other than 0 of sy-subrc following the statement), the overall implementation can react and avoid the final saving of data at the end of the SAP LUW with COMMIT WORK.
ABAP_EXAMPLE_ABEXA ABAP_EML - COMMIT ENTITIES IN SIMULATION MODE ABAP_EXAMPLE_END
