This tutorial will get you familiar with the relevant tools, whether you are an ABAP newbie, experienced in SAPUI5 development, or an ABAP developer who is new to ADT / SAP Cloud Platform, ABAP Environment.
For more information, see:
Step 1: Duplicate your class
-
Select your class, ZCL_OUTPUT_TEST_XXX
and choose Duplicate from the context menu.
This is clearly not standard practice. However, you are working with the ABAP Debugger for the first time, and also adding some dummy code to your class.
-
Enter a name, e.g. ZCL_OUTPUT_TEST_DEBUG_XXX
and choose Finish.
Step 2: Change ABAP Debugger setting to user
-
In the Project Explorer, select your project and choose Properties from the context menu.
-
Choose ABAP Development > Debug.
-
Change the setting Breakpoint activation … to User and enter your logon user.
-
Choose Apply and Close.
Your class, which includes an RFC request, that is an external request to a different system / project. This enables you to debug the class.
Note that breakpoints in the ABAP Development Tools (ADT) are by default external user breakpoints. For more information, see: Breakpoints - Characteristics
Step 3: Add dummy code and breakpoints
-
Right at the start of the method, add some simple code, e.g.
IF 0 = 1.
ENDIF.
-
At the statement IF 0 = 1.
, set a breakpoint by double-clicking the ruler.
-
Repeat this - add the same code, then add a breakpoint - right at the end of the code, just before ENDTRY
.
Step 4: Run your application
-
Run your application in the console by choosing F9
.
-
As soon as the first breakpoint is reached, a pop-up window suggests that you switch to the Debug perspective. Choose Switch.
The Debugger perspective opens.
Step 5: Add variable to list
-
Switch to the Variables tab (to the right of the Class Editor).
-
Add the system field SY-TABIX
to the list, by clicking: < Enter Variable >
This field is filled by the runtime system. You can then use them in programs to query the system status.
For a list of system variables, see: ABAP System Fields
-
Expand Locals.
-
Select the internal table lt_product
and choose Show in Table View from the context menu.
The internal table appears in a new tab in the bottom panel.
Step 6: Step through the program
-
Switch to the Class Editor. You have 4 options for stepping through the program.
-
Step Into (F5
) Execute the next single ABAP instruction in the program in the debugger. Step into a called procedure.
-
Step Over (F6
) Execute the next ABAP statement. If the next step is a procedure call, run the entire procedure.
-
Step Return (F7
) Run until the current procedure returns to its caller or until the program ends.
-
Run to Line (Shift F8
) Run to the statement on which the cursor is positioned.
-
Step through the first few lines of the program line by line using F5
- UNTIL you get to the statement DATA(lo_rfc_dest) = cl_rfc_destination_provider=>create_by_cloud_destination...
.
-
Since this statement calls a system class, which you do not want to debug it. Execute these two DATA
statements using F6
.
-
When you get to CALL FUNCTION
, STOP.
You cannot execute this remote function in the Debugger, but you cannot debug it. If you choose F5
, the Debugger will hang. You will have to terminate the Debugger session.
Therefore, simply execute this using F7
.
Look at the Table View. lt_product
is filled with the data from the BAPI.
However, in the Variables View, ls_product
is still empty. SY-TABIX
= 25, the total rows in the table imported.
Step 7: Step through LOOP statement
-
Proceed until you get to the statement LOOP AT lt_product INTO ls_product.
.
-
Step through the LOOP...ENDLOOP.
using F5
. Note that the variable SY-TABIX
starts at 1, then increments by 1 for each loop pass.
-
Exit the Debugger by choosing Terminate from the main tool bar.
Step 8: Set breakpoint for an ABAP statement
To jump straight from your first breakpoint to the CASE
statement:
-
Choose Run > ABAP Breakpoints > Add Statement Breakpoint…
-
Enter CASE
, keep the setting Soft Breakpoint (so that you debug CASE
statements only in your own class, not the whole stack), then choose OK.
-
Run the Debugger again by choosing F9
.
Step 9: Set watchpoint for variable with a condition
You may want to stop, not at a specific statement, but when a variable hits a specific value.
To do this, run the Debugger again and proceed as follows:
-
For clarity, you may wish to deactivate your CASE
statement breakpoint in the Breakpoints View.
-
In the Class Editor, select the field ls_product-suppliername
and choose Set Watchpoint
from the context menu.
-
In the Breakpoints View, choose the watchpoint
and enter the condition LS_PRODUCT-SUPPLIERNAME = 'AVANTEL'
. Do not forget the single quotation marks.
-
If you switch to the Variables View, you can monitor the values of the variable as you step through the loop.
-
When the Debugger hits the correct row in the table, it stops.
-
When you are satisfied, terminate the Debugger.
You can define a wide range of complex conditions for breakpoints and watchpoint
. For more information, see SAP Help Portal: SAP Cloud Platform: ABAP Development User Guide: Adding Conditions to Breakpoints
Step 10: Set watchpoint for variable with condition for table row index
You can also specify a specific value for a different variable.
-
Start the Debugger again. Unlike a breakpoint, a watchpoint
lasts only for the current Debugger session.
-
In the Class Editor, select ls_product-suppliername
and choose Set Watchpoint
again.
-
In the Breakpoints View, choose the watchpoint
again. This time, enter the condition SY-TABIX = 4
.
-
When the Debugger hits the correct row in the table, it stops.
Step 11: Open ABAP Debugger from Fiori Elements Preview
The class that you created previously (in Get Data from a Remote System Using a Custom Entity) is not displayed in the ABAP Console. However, you can start the ABAP Debugger for it as follows:
-
Again, duplicate the class, in this case zcl_product_via_rfc_xxx
.
-
Open your custom entity, zce_product_xxx
.
-
Change the name of the implementing class to, e.g. ZCL_PRODUCT_DEBUG_XXX
(upper case); then Save and Activate ( Ctrl+S, Ctrl+F3 ) the custom entity.
@ObjectModel.query.implementedBy: 'ABAP:ZCL_PRODUCT_DEBUG'
-
Open your service binding, ZSB_PRODUCT_XXX
and choose Preview.
-
Log in using your ABAP Environment user and password.
The SAP Fiori elements preview then appears.
-
Display the data by choosing Go.
You can also debug your application, displayed in the SAP Fiori elements preview, in the browser. This is beyond the scope of this tutorial, but for more information, see: