Object Oriented ABAP

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Abstract Classes and Methods in <strong>Object</strong> <strong>Oriented</strong> Programming Abstract Class: Classes which contain one or more abstract methods or abstract properties, such methods or properties do not provide implementation. These abstract methods or properties are implemented in the derived classes (Sub-classes). Abstract classes does not create any instances to that class objects Use of Abstract class: We can define some common functionalities in Abstract class (Super-class) and those can be used in derived classes (Sub classes). Step-by-Step Approach to create Abstract classes and Methods TCode: SE24 Enter the name of class as 'Z_DEMO_ABS_CLASS' and press Create Button A pop-up window is displayed, then select "Class" radio button and Press enter It will go to the next screen.
Here you enter the Description of the class and then select "Abstract" from Instantiation Drop down list to define the class an abstract class, Then click on save button Go to the "Attributes" tab, Enter the Attribute name, Level, Visibility, Type and Description as shown in the screen shot. Go to Methods tab, Enter Method name, Level, Visibility and Description as shown in the below screen shot
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Object Oriented ABAP From SAP Techn
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combines the character to the respe
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Data declared in public section can
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Single Inheriting: Acquiring the pr
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Multiple Inheritance is not support
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Object oriented programming (OOP) e
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For withdraw we define an exception
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Click SET_BALANCE. Write the NEW_BA
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selection-screen begin of block a.
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WRITE: / 'Number of employees is:',
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ENDMETHOD. METHOD display_no_of_emp
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* Object references o_bluecollar_em
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* Adds a new employee to the list o
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l_wage = monthly_salary - monthly_d
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Press Save button. Then we can view
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And double click on the method sele
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Provide the logic. Then save it, ch
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Working with the Keyword SUPER in o
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Save it. Then we can see the method
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*Create the object CREATE OBJECT OB
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WRITE:/ 'THIS IS MM1 METHOD IN SUPE
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SKIP 2. CALL METHOD OBJ->ANOTHER. S
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Then save it, check it, activate it
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*create the object START-OF-SELECTI
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Working with import, export and cha
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Press F5
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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
Page 104 and 105: Following pop-up appears: Enter you
Page 106 and 107: Create Transaction for local class
Page 108 and 109: transaction and execute it. In this
Page 110 and 111: Step: 3 -> Persistent Mapping or Ma
Page 112 and 113: To assign a class indicator, select
Page 114 and 115: I_OID = '30EA9E25999F0843BE6F7B8606
Page 116 and 117: Step: 2 -> Persistent Mapping or Ma
Page 118 and 119: Step: 3 -> Write a Program to creat
Page 120 and 121: delete_persistent importing im_sno
Page 122 and 123: Persistent Objects: Using GUID Obje
Page 124 and 125: Give the table name. For eg ZSTUDEN
Page 126 and 127: Add the remaining fields as well. S
Page 128 and 129: Here I am creating a new student. S
Page 130 and 131: sname, mark1, mark2. CATCH CX_OS_OB
Page 132 and 133: Step: 3 Create OO transaction. Go t
Page 134 and 135: Execute the transaction Z_TX Step:
Page 136 and 137: 1.6 Inheritance In OO ABAP we use a
Page 138 and 139: METHOD xyz. write : / 'Child class
Page 140 and 141: 2.3 Binding Check Table I have prep
Page 142 and 143: Introduction: Understanding "ABAP U
Page 144 and 145: Actual result - 24. Expected Result
Page 146 and 147: Executing Unit Tests: For program,
Page 148 and 149: Demo on "Narrow Casting" Definition
Page 150: Accessing methods using super class
Page 156 and 157: Double click on the Method name "AR
Page 158 and 159: A successful message is displayed l
Page 160 and 161: Enter the Super class name as "Z_DE
Page 162 and 163: Write the code In between Method an
Page 164: Enter the number under V_NUM as "6"
Page 167 and 168: Enter the Description of the class
Page 169 and 170: Method meth * Local Data Declaratio
Page 171 and 172: Enter the Description of the class
Page 173 and 174: Pop-up window is displayed Go to "A
Page 175 and 176: A pop-up window is displayed, then
Page 177 and 178: The output will be displayed like b
Page 180 and 181: After execution (F8): Result:
Page 183 and 184: After execution (F8): Result:
Page 185 and 186: Enter the „Class name‟, „Clas
Page 187 and 188: Enter the „Description‟ for the
Page 189 and 190: Create a screen „0100‟ and a cu
Page 191 and 192: MODULE user_command_0100 INPUT. CAS
Page 193 and 194: internal_error = 3 parameter_error
Page 195 and 196: EXPORTING fields_table = locint_fie
Page 197 and 198: *&---------------------------------
Page 199 and 200: l_err_row TYPE i. TYPE-POOLS:sx. DA
Page 201 and 202: Doesn‟t allow the user to modify
Page 203 and 204: 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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