(Glue-2108) ABAP Based Extractor

Owned by SNP
Aug 17, 2021

ABAP Based extractor allows you to use ABAP code as a data source.


To create the ABAP based extractor

  1. In Extractor Workbench.
  2. In the context menu of ABAP to Storage select Create Extractor.
  3. Specify the following parameters:
    • Extractor name – technical name of the extractor.
    • Description – description of the extractor.
    • Extractor type – this value is predefined, for this type of extractor select the ABAP to Storage extractor.
    • Source type 
    • Target type
  4. Fill in the following entries:
  • Result Structure – SAP table/structure that represents the source structure of data
  • Target Table HIVE – target GLUE table
  • Input Structure – SAP table/structure that will serve as a filter for class providing the data - similar to select-options
  • Class Name – SAP class that implements interface /DVD/GL_EXT_IF_ABAP

Please note: that Target Structure section is automatically generated and its content depends on the defined Input Structure.

3. Save and Activate.

4. The next step is to create a Variant.

Technical details

To use a Class as a Data provider, the class must implement interface /DVD/GL_EXT_IF_ABAP.

The interface contains these methods:

  • INIT - serves for initialization of required information for extraction process; input parameter is select-options from variant
  • HAS_DATA - signalizes extraction process, if there are still some data to extract
  • GET_NEXT_PACKAGE - provides data that will be replicated to Storage
  • POST_EXTRACTION - post-processing after successful extraction
  • CLEANUP - cleanup after failed extraction