Get Example source ABAP code based on a different SAP table
ABAP_CONTEXT - Buffering Concept A context buffer is managed by the context program CONTEXT_X_... of a context. From a technical point of view, it is a cross-transaction application buffer of the structure CONTEXTB and the ID IB in the shared memory of the current ABAP_ASINSTANCE , which is processed in the context program with the statements EXPORT TO SHARED BUFFER and IMPORT FROM SHARED BUFFER. The context program renews the context buffer at specific times but does not try to synchronously or nearly synchronously track current changes. ITOC
Buffering Types
Permanent (P): This is the default setting. In this case, the data is preserved across the transaction context. However, they are always reset to the full hour (8:00, 9:00...). Entries that are not found are not buffered. The buffer for each context can be deleted manually using the Context Builder. and affects all ABAP_ASINSTANCE s.
Temporary (T): Data is only buffered for the duration of the current transaction.
No buffering (N)
Buffer Size The maximum number of entries to be buffered can also be defined. The default value is 128. This number refers to the permanent buffer per module. Within a transaction, everything that is written to the context is stored in the buffer unless buffering is switched off for this module. We recommend keeping a default value of 128. This is intended to prevent a module from occupying the entire buffer. Different combinations should no longer occur within an hour in a single ABAP_ASINSTANCE . The system resets the buffer after one hour.
Buffering Types
An I buffer is a table that assigns derived values to the input fields of the module. It
only contains one entry with key values.
An E buffer is a table that assigns the derived values of the module to the key fields of the context. It:
also contains multiple entries with the key values.
can be a join of all I buffers for the upstream modules
Performance The E buffer provides the fastest access, since it can find the values requested in the DEMAND statement in a single step. However, it may return a smaller number of hits than the I buffer.
