(Glue-2408) Fetcher

The Fetcher object is responsible for part of the data read from the source. A source can be any data source that supports data acquisition.

Provided types of Fetcher objects:

• (Glue-2408) SAP Table Fetchers
• (Glue-2408) SNP Glue Table Fetcher
• (Glue-2408) (Obsolete) BEx Query Fetcher
• (Glue-2408) BEx Query Fetchers (BICS)
• (Glue-2408) Advanced DSO Fetcher
• (Glue-2408) Listcube Fetchers
• (Glue-2408) SNP Glue Queue Fetchers
• (Glue-2408) HANA View Fetchers
• (Glue-2408) DSO Fetchers
• (Glue-2408) ABAP Fetchers
• (Glue-2408) Delta Mechanisms
• (Glue-2408) (Deprecated) ODP Fetchers
• (Glue-2408) CDS Fetcher

Creating Fetcher Objects 

1. Run the transaction /DVD/GL80 to open (Glue-2408) Object Navigator.
2. In the context menu of the desired package select Create Extractor 2.0 object.
   
   
3. A pop-up appears. Enter the name of the new Fetcher in Object name and short information about it in Description.
4. Select Fetcher in Component type dropdown and the desired Fetcher implementation under Component implementation.
5. Confirm the popup.
   

Load type

The mode of the data read for extraction execution. This setting can be set in some Fetchers.

There are four Load types:

• Full Load (Repair) Without Delta Update: Reads all data
• Delta Init (Without Data)
  • Only sets the delta value and does not read any data.
• Delta Init + Full Load
  • Sets the delta value and reads all data.
• Delta Load
  • Read data based on delta value.

Manage delta

The manage delta function is relevant for the following delta types:

• DATE
• TMSTMP
• VALUE
• VALUE_DIST.

For more information, see the chapter (Glue-2408) Delta Mechanisms.

• DATE
  
  • Delta field: Field of the source table, F4 help is available.
  • Set delta value: Field with the actual delta value that can be changed for an active object.
    
• TMSTMP
  • Delta based on Timestamp
    
    
    • Delta field: Field of the source table, F4 help is available.
    • Timestamp offset: Value of the time shift for the next delta load in seconds.
    • Set delta value: Field with the actual delta value that can be changed for an active object.
      
  • Delta based on Date and Time
    
    
    • Date Field: Date field of the source table, F4 help is available.
    • Time Field: Time field of the source table, F4 help is available.
    • Timestamp offset: Value of the time shift for the next delta load in seconds.
    • Set delta date value: Field with the actual delta date value that can be changed for an active object.
    • Set delta time value: Field with the actual delta time value that can be changed.
      
• VALUE
  
  • Delta field: Field of the source table, F4 help is available.
  • Set delta value: Field with the actual delta value that can be changed for an active object.
    
• VALUE_DIST
  
  
  • Delta field: Field of the source table, F4 help is available.
  • Reset delta value: Action to clean up all distinct delta values.