Object Oriented ABAP

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Persistent Objects: Using GUID Object Identity Objective To Store the attributes of the Objects persistently in the database. Persistent Object’s Identity Every Persistent Object has a unique identity with which it can be accessed. There are 2 types of Object identity 1. Business Key 2. GUID( Global Unique Identifier ) For Persistent Objects using Business key Identity please check my previous article, “Persistent Objects: Using Business Key identity” This article will focus only on Persistent Object using GUID. Step: 1 -> Create a database table This table should contain a key field of type OS_GUID. Step: 2 ->Create a Persistent Class Go to Class Builder (tcode SE24) Give persistent class name for eg ZCL_PERSIST_02 and hit the create button
In the next screen select the class type as Persistent Class and then hit Save Button. Step: 3 -> Persistent Mapping or Mapping Goto->Persistence Representation
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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. *&-----------
Page 72 and 73: 4. How does it integrate? The Class
Page 74 and 75: 10. Conventions for Components: Met
Page 76 and 77: The ZCL_TEST class now contains the
Page 78 and 79: An example to show how to define At
Page 80 and 81: The FIND_BY_LPOR method should alwa
Page 82 and 83: If we do not need the method in our
Page 84 and 85: 21. BI_OBJECT~RELEASE Method: The s
Page 86 and 87: BOR objects Exceptions: Object is t
Page 88 and 89: Provide parameters also for this me
Page 90 and 91: Save & activate. Following screen a
Page 92 and 93: INTO TABLE IT_LFA1 WHERE LIFNR BETW
Page 94 and 95: The output is like this.
Page 96 and 97: Save it. Provide the method name. P
Page 98 and 99: Save it. Go to interface tab. Provi
Page 100 and 101: Provide the code. *&---------------
Page 102 and 103: 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 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 154 and 155: Abstract Classes and Methods in Obj
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
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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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