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Explore the ABAP Repository

Open an ABAP package containing ABAP development objects and find out more about them.
You will learn
  • How to find development objects in the ABAP Repository
julieplummer20Julie PlummerNovember 17, 2021
Created by
julieplummer20
June 20, 2018
Contributors
julieplummer20

Prerequisites

And that’s it. You should now be familiar with the most important ABAP Repository objects and the relationship between them.
You can now work through the tutorial mission Get Started with ABAP Development.

  • Step 1

    You will start by opening a package with various ABAP Repository object types.

    1. In ABAP Development Tools, expand the project that you created, by choosing the arrow on the left:

      Image depicting step1-expand-project
    2. Select Favorite Packages, then choose Add Package… from the context menu:

      Image depicting step1b-add-fave-package
    3. Enter SABAP in the search field, then choose the package SABAPDEMOS from the matching items box:

      Image depicting step1c-search-sabap

    The package is added to your favorites:

    Image depicting step1c-package-added
  • Step 2

    Expand the package SABAPDEMOS again by choosing the arrow, then expanding the Source Code Library folder:

    Image depicting step2-expand-package

    You will see a list of folders of objects in alphabetical order. For the moment you will focus on just 3:

    • Executable programs also known as reports
    • Classes (part of the object-oriented ABAP Objects)
    • Function modules (now obsolete - see below)

    You will now explore how these concepts fit together.

  • Step 3
    1. Expand the Programs folder, scroll down and choose (double-click) the program DEMO_CREATE_STRUCTURED_DATA:

      Image depicting step3-expand-programs
    2. Alternatively, choose Open development object (Ctrl+Shift+A) from the toolbar and choose the program DEMO_CREATE_STRUCTURED_DATA:

      Image depicting step3b-open-dev-object

      .

      Image depicting step3c-open-dev-object2

    3. The program opens in a text-based editor:

      Image depicting step3d-program-text-ed
    4. Click on the editor and choose Link to Editor from the Project Explorer toolbar.

      step5c-link-with-editor

      The relevant folders and packages will now open, showing the program in its package in the Project Explorer. This works for any Repository object.

    5. The outline also appears:

      Image depicting step3e-program-outline
    6. Also, if you choose the Properties tab, you can see the package and application component:

      Image depicting step3f-program-properties

    In the Outline, you can see that the program contains a local class, Demo, with a method, Main, and, crucially, an event keyword START-OF-SELECTION. If you look in the main editor, you will see that when the associated event is triggered by the ABAP runtime environment, the program calls the method Main of the class Demo:

    Image depicting step3g-start-of-selection

    Without a processing block such as this, the program would not do anything. Also note, if you are completely new to ABAP, but experienced in other languages, that every ABAP statement ends with a period (.).
    For more information, see ABAP Keyword Documentation: START-OF-SELECTION.

  • Step 4

    Now run your program by choosing Run (F8) from the toolbar (ignore the other options for now):

    Image depicting step4-run-program

    An ABAP console appears. Change the name of the database table, or number of rows if you want, then choose Enter:

    Image depicting step4b-console

    The console displays 10 rows of the table in a new tab:

    Image depicting step4c-table-in-console

    Close the console.

  • Step 5

    You will now explore ABAP global classes:

    1. Back in the main text editor for the program, scroll down till you find the class CL_DEMO_INPUT.

      Image depicting step5-choose-class
    2. This is a global class. Select it and choose Navigate (F3) from the context menu. The definition appears in a text-based editor. (The outline also appears):

      Image depicting step5b-global-class
  • Step 6

    If you looked in the Project Explorer for the class CL_DEMO_INPUT, you will not find it in the package SABAPDEMOS. If you look in the Properties tab, you will see that CL_DEMO_INPUT belongs to another package. You can display it in the hierarchy by right-clicking in the text editor and choosing Show In > Project Explorer:

    Image depicting step6-show-in-proj-explorer

    The class appears in its package, SABAP_DEMOS_INPUT:

    Image depicting step6b-class-in-package
  • Step 7

    Finally you will look at function modules.

    Function modules are managed in function groups and provide two main benefits:

    • They allow you to encapsulate and reuse global functions in an ABAP system.

    • They are also a very powerful feature, in that SAP delivers many built-in function modules – both general such as date and time, or remote system information, and module specific, such as HCM or FI. See these two lists for more details:

    Function modules are now obsolete for new development. You should now use ABAP Objects for modularization. However, you should be familiar with them, since you may need to maintain them or use an existing function module. For more information on obsolete ABAP language elements, see the ABAP Keyword Documentation: Function Modules.

    Now you will inspect a function module:

    1. In the Project Explorer, in the package SABAPDEMOS, expand Source Code Library > Function Groups, then expand the group DEMO_SPFLI > Function Modules. You will see 2 function modules:

      Image depicting step7-find-fm
    2. Choose (double-click on) READ_SPFLI_INTO_TABLE. The function module opens in a text-based editor:

      Image depicting step7b-fm-in-editor
    3. Now run your function module by choosing Run (F8) from the toolbar (ignore the other options for now).

    4. The initial screen should look like this. Choose Run (F8) again.

      Image depicting step7-test-fm-1
    5. Double-click on the text 4 entries.

    The output should look roughly like this.

    Image depicting step7c-test-fm-output
  • Step 8

    Which code fragment below will turn your ABAP program into an executable program?
    Choose the best match and choose "Submit Answer".

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