Object Oriented ABAP

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The yellow block of code is CLASS Definition The Green block of code is CLASS Implementation The Grey block of code is for object creation. This object creation includes two steps: Step1 is Create a reference variable with reference to the class. Syntax: DATA : TYPE REF TO . Step 2 : Create an object from the reference variable:- Syntax: CREATE OBJECT . Output for the above code is Attributes of <strong>Object</strong> <strong>Oriented</strong> Programming: Inheritance. Abstraction. Encapsulation. Polymorphism Inheritance is the concept of adopting the features from the parent and reusing them . It involves passing the behavior of a class to another class. You can use an existing class to derive a new class. Derived classes inherit the data and methods of the super class. However, they can overwrite existing methods, and also add new ones. Inheritance is of two types: Single Inheritance and Multiple Inheritance
Single Inheriting: Acquiring the properties from a single parent. (Children can be more). Example for Single Inheritance Multiple inheritance: Acquiring the properties from more than one parent. Example Tomato4 (Best Color, Size, Taste) Tomato1 (Best color) Tomato2 (Best Size) Tomato3 (Best Taste)
Page 1 and 2: Object Oriented ABAP From SAP Techn
Page 3 and 4: combines the character to the respe
Page 5: Data declared in public section can
Page 9 and 10: Multiple Inheritance is not support
Page 11 and 12: Object oriented programming (OOP) e
Page 13 and 14: For withdraw we define an exception
Page 15 and 16: Click SET_BALANCE. Write the NEW_BA
Page 17 and 18: selection-screen begin of block a.
Page 19 and 20: WRITE: / 'Number of employees is:',
Page 21 and 22: ENDMETHOD. METHOD display_no_of_emp
Page 23 and 24: * Object references o_bluecollar_em
Page 25 and 26: * Adds a new employee to the list o
Page 27 and 28: l_wage = monthly_salary - monthly_d
Page 29 and 30: Press Save button. Then we can view
Page 31 and 32: And double click on the method sele
Page 33 and 34: Provide the logic. Then save it, ch
Page 35 and 36: Working with the Keyword SUPER in o
Page 37 and 38: Save it. Then we can see the method
Page 39: *Create the object CREATE OBJECT OB
Page 42: WRITE:/ 'THIS IS MM1 METHOD IN SUPE
Page 45 and 46: SKIP 2. CALL METHOD OBJ->ANOTHER. S
Page 47 and 48: Then save it, check it, activate it
Page 49 and 50: *create the object START-OF-SELECTI
Page 51 and 52: Working with import, export and cha
Page 53 and 54: Press F5
Page 55 and 56: The values are changed. Press F5. T
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POLYMORPHISM:- Working on Polymorph
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Select display method then provide
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Select select _ method then press t
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Double click on the method then pro
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Go to TCode SE24. Enhancement of a
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Enter the Source code. Click on Sav
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Paste the Below Code. *&-----------
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4. How does it integrate? The Class
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10. Conventions for Components: Met
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The ZCL_TEST class now contains the
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An example to show how to define At
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The FIND_BY_LPOR method should alwa
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If we do not need the method in our
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21. BI_OBJECT~RELEASE Method: The s
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BOR objects Exceptions: Object is t
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Provide parameters also for this me
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Save & activate. Following screen a
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INTO TABLE IT_LFA1 WHERE LIFNR BETW
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The output is like this.
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Save it. Provide the method name. P
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Save it. Go to interface tab. Provi
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Provide the code. *&---------------
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IT_MARA TYPE Z_MARA, WA_MARA TYPE M
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Following pop-up appears: Enter you
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Create Transaction for local class
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transaction and execute it. In this
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Step: 3 -> Persistent Mapping or Ma
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To assign a class indicator, select
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I_OID = '30EA9E25999F0843BE6F7B8606
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Step: 2 -> Persistent Mapping or Ma
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Step: 3 -> Write a Program to creat
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delete_persistent importing im_sno
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Persistent Objects: Using GUID Obje
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Give the table name. For eg ZSTUDEN
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Add the remaining fields as well. S
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Here I am creating a new student. S
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sname, mark1, mark2. CATCH CX_OS_OB
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Step: 3 Create OO transaction. Go t
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Execute the transaction Z_TX Step:
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1.6 Inheritance In OO ABAP we use a
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METHOD xyz. write : / 'Child class
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2.3 Binding Check Table I have prep
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Introduction: Understanding "ABAP U
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Actual result - 24. Expected Result
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Executing Unit Tests: For program,
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Demo on "Narrow Casting" Definition
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Accessing methods using super class
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Abstract Classes and Methods in Obj
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Double click on the Method name "AR
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A successful message is displayed l
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Enter the Super class name as "Z_DE
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Write the code In between Method an
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Enter the number under V_NUM as "6"
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Enter the Description of the class
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Method meth * Local Data Declaratio
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Enter the Description of the class
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Pop-up window is displayed Go to "A
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A pop-up window is displayed, then
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The output will be displayed like b
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After execution (F8): Result:
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After execution (F8): Result:
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Enter the „Class name‟, „Clas
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Enter the „Description‟ for the
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Create a screen „0100‟ and a cu
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MODULE user_command_0100 INPUT. CAS
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internal_error = 3 parameter_error
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EXPORTING fields_table = locint_fie
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*&---------------------------------
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l_err_row TYPE i. TYPE-POOLS:sx. DA
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Doesn‟t allow the user to modify
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Event Handler Technique in Object o
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Output. Now select the method. And
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After that provide the logic in se3
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Dialog processing after COMMIT WORK
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The Event TRANANSACTION_FINISHED of
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Object Oriented ABAP

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