Regarding oops
hi,
could u please explain how many types of class are there
what is the use of that each class explain clearly
where these class are stored
Hi
A class is a set of objects that have the same structure and the same behavior. A class is
therefore like a blueprint, in accordance with which all objects in that class are created.
The components of the class are defined in the definition part. The components are attributes, methods, events,constants, types, and implemented interfaces. Only methods are implemented in the implementation part.
The CLASS statement cannot be nested, that is, you cannot define a class within a class.
reward if usefull
Similar Messages
-
hi ..i assigned for regarding ooabap.i have no knowledge regarding oops ..
please send me material regarding oops and ooabap..
thanks,
karthik.MHi Karthik,
http://www.sapgenie.com/abap/OO/index.htm
http://www.geocities.com/victorav15/sapr3/abap_ood.html
http://www.brabandt.de/html/abap_oo.html
Check this cool weblog:
/people/thomas.jung3/blog/2004/12/08/abap-persistent-classes-coding-without-sql
/people/thomas.jung3/blog/2004/12/08/abap-persistent-classes-coding-without-sql
http://help.sap.com/saphelp_nw04/helpdata/en/c3/225b6254f411d194a60000e8353423/frameset.htm
http://www.sapgenie.com/abap/OO/
http://www.sapgenie.com/abap/OO/index.htm
http://help.sap.com/saphelp_nw04/helpdata/en/c3/225b5654f411d194a60000e8353423/content.htm
http://www.esnips.com/doc/375fff1b-5a62-444d-8ec1-55508c308b17/prefinalppt.ppt
http://www.esnips.com/doc/2c76dc57-e74a-4539-a20e-29383317e804/OO-abap.pdf
http://www.esnips.com/doc/5c65b0dd-eddf-4512-8e32-ecd26735f0f2/prefinalppt.ppt
http://www.allsaplinks.com/
http://www.sap-img.com/
http://www.sapgenie.com/
http://help.sap.com
http://www.sapgenie.com/abap/OO/
http://www.sapgenie.com/abap/OO/index.htm
http://www.sapgenie.com/abap/controls/index.htm
http://www.esnips.com/doc/2c76dc57-e74a-4539-a20e-29383317e804/OO-abap.pdf
http://www.esnips.com/doc/0ef39d4b-586a-4637-abbb-e4f69d2d9307/SAP-CONTROLS-WORKSHOP.pdf
http://www.sapgenie.com/abap/OO/index.htm
http://help.sap.com/saphelp_erp2005/helpdata/en/ce/b518b6513611d194a50000e8353423/frameset.htm
http://www.sapgenie.com/abap/OO/
these links
http://help.sap.com/saphelp_47x200/helpdata/en/ce/b518b6513611d194a50000e8353423/content.htm
For funtion module to class
http://help.sap.com/saphelp_47x200/helpdata/en/c3/225b5954f411d194a60000e8353423/content.htm
for classes
http://help.sap.com/saphelp_47x200/helpdata/en/c3/225b5c54f411d194a60000e8353423/content.htm
for methods
http://help.sap.com/saphelp_47x200/helpdata/en/08/d27c03b81011d194f60000e8353423/content.htm
for inheritance
http://help.sap.com/saphelp_47x200/helpdata/en/dd/4049c40f4611d3b9380000e8353423/content.htm
for interfaces
http://help.sap.com/saphelp_47x200/helpdata/en/c3/225b6254f411d194a60000e8353423/content.htm
For Materials:
1) http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCABA/BCABA.pdf -- Page no: 1291
2) http://esnips.com/doc/5c65b0dd-eddf-4512-8e32-ecd26735f0f2/prefinalppt.ppt
3) http://esnips.com/doc/2c76dc57-e74a-4539-a20e-29383317e804/OO-abap.pdf
4) http://esnips.com/doc/0ef39d4b-586a-4637-abbb-e4f69d2d9307/SAP-CONTROLS-WORKSHOP.pdf
5) http://esnips.com/doc/92be4457-1b6e-4061-92e5-8e4b3a6e3239/Object-Oriented-ABAP.ppt
6) http://esnips.com/doc/448e8302-68b1-4046-9fef-8fa8808caee0/abap-objects-by-helen.pdf
7) http://esnips.com/doc/39fdc647-1aed-4b40-a476-4d3042b6ec28/class_builder.ppt
8) http://www.amazon.com/gp/explorer/0201750805/2/ref=pd_lpo_ase/102-9378020-8749710?ie=UTF8
1) http://www.erpgenie.com/sap/abap/OO/index.htm
2) http://help.sap.com/saphelp_nw04/helpdata/en/ce/b518b6513611d194a50000e8353423/frameset.htm
Regards,
Satish -
hi
can anyone plz explain a small report based on oop in alvHi!
REPORT YSIMPLEALVINTERACTIVE .
TABLES : VBAK,VBAP,LIKP,VBRK,VTTK.
PARAMETERS : P_KUNNR LIKE VBAK-KUNNR.
SELECT-OPTIONS: S_VBELN FOR VBAK-VBELN,
S_ERDAT FOR VBAK-ERDAT.
DATA:WA TYPE YLINE22,
ITAB TYPE YROW22.
DATA : REPID LIKE SY-REPID,
CONTAINER TYPE SCRFNAME VALUE 'ALVCONTROL',
CUST TYPE REF TO CL_GUI_CUSTOM_CONTAINER,
GRID TYPE REF TO CL_GUI_ALV_GRID.
*CLASS DEFINITATION.
CLASS CL_GRID DEFINITION.
PUBLIC SECTION .
METHODS: DC FOR EVENT DOUBLE_CLICK OF CL_GUI_ALV_GRID IMPORTING
E_ROW E_COLUMN.
ENDCLASS. "
*CLASS IMPLEMENTATION.
CLASS CL_GRID IMPLEMENTATION.
METHOD DC.
DATA : WA1 TYPE YLINE22.
READ TABLE ITAB INDEX E_ROW-INDEX INTO WA1.
SET PARAMETER ID 'AVN' FIELD WA1-VBELN.
CALL TRANSACTION 'VA02' AND SKIP FIRST SCREEN .
ENDMETHOD. "DC
ENDCLASS. "CL_GRID IMPLEMENTATION
CALLING CLASS.
DATA : OBJ_CL_GRID TYPE REF TO CL_GRID.
START-OF-SELECTION.
PERFORM CALLSUB.
IF SY-SUBRC = 0.
CALL SCREEN 100.
ELSE.
MESSAGE I000(0) WITH 'no data for your salesorder'.
ENDIF.
*& Module STATUS_0100 OUTPUT
text
MODULE STATUS_0100 OUTPUT.
SET PF-STATUS 'xxxxxxxx'.
SET TITLEBAR 'xxx'.
REPID = SY-REPID.
IF CUST IS INITIAL.
CREATE OBJECT CUST EXPORTING CONTAINER_NAME = CONTAINER .
CREATE OBJECT GRID EXPORTING I_PARENT = CUST.
CALL METHOD GRID->SET_TABLE_FOR_FIRST_DISPLAY
EXPORTING
I_STRUCTURE_NAME = 'YLINE22'
CHANGING
IT_OUTTAB = ITAB.
CREATE OBJECT OBJ_CL_GRID.
SET HANDLER OBJ_CL_GRID->DC FOR GRID.
ENDIF.
ENDMODULE. " STATUS_0100 OUTPUT
FORM CALLSUB.
SELECT VBAPVBELN VBAPKWMENG VBAPNETWR LIPSERDAT VTTP~ERDAT
VBRK~FKDAT INTO TABLE ITAB FROM VBAK
INNER JOIN VBAP ON VBAKVBELN = VBAPVBELN INNER JOIN LIPS ON VBAP~VBELN
= LIPSVGBEL INNER JOIN VTTP ON LIPSVBELN = VTTP~VBELN INNER JOIN VBRP
ON LIPSVBELN = VBRPVGBEL INNER JOIN VBRK ON VBRKVBELN = VBRKVBELN
WHERE
VBAK~KUNNR = P_KUNNR AND
VBAKVBELN IN S_VBELN AND VBAKERDAT IN S_ERDAT.
ENDFORM. "CALL
*& Module USER_COMMAND_0100 INPUT
text
MODULE USER_COMMAND_0100 INPUT.
CASE SY-UCOMM.
WHEN'EXIT'.
LEAVE PROGRAM.
ENDCASE.
ENDMODULE.
Reward if useful.
Regards
Tamá -
hi,
could u plz tell me can we create instance for Interface,
if it is possible how?Hi Rajesh,
This program will show the use of interface reference variable and how it can be used to access the components of an interface in a class(implementing that interface). Use of interface reference variable paves the way for polymorphism via interface.
INTERFACE lif_employee
INTERFACE lif_employee.
METHODS:
add_employee
IMPORTING im_no TYPE i
im_name TYPE string
im_wage TYPE i.
ENDINTERFACE.
Super class LCL_CompanyEmployees
CLASS lcl_company_employees DEFINITION.
PUBLIC SECTION.
INTERFACES lif_employee.
TYPES:
BEGIN OF t_employee,
no TYPE i,
name TYPE string,
wage TYPE i,
END OF t_employee.
Declare event. Note that declaration could also be placed in the
interface
EVENTS: employee_added_to_list
EXPORTING value(ex_employee_name) TYPE string.
CLASS-EVENTS: Events can also be defined as class-events
METHODS:
constructor,
display_employee_list,
display_no_of_employees,
Declare event method
on_employee_added_to_list FOR EVENT
employee_added_to_list OF lcl_company_employees
IMPORTING ex_employee_name sender.
PRIVATE SECTION.
CLASS-DATA: i_employee_list TYPE TABLE OF t_employee,
no_of_employees TYPE i.
ENDCLASS.
*-- CLASS LCL_CompanyEmployees IMPLEMENTATION
CLASS lcl_company_employees IMPLEMENTATION.
METHOD constructor.
no_of_employees = no_of_employees + 1.
ENDMETHOD.
METHOD add_employee.
METHOD lif_employee~add_employee.
Adds a new employee to the list of employees
DATA: l_employee TYPE t_employee.
l_employee-no = im_no.
l_employee-name = im_name.
l_employee-wage = im_wage.
APPEND l_employee TO i_employee_list.
Raise event employee_added_to_list
RAISE EVENT employee_added_to_list
EXPORTING ex_employee_name = l_employee-name.
ENDMETHOD.
METHOD display_employee_list.
Displays all employees and there wage
DATA: l_employee TYPE t_employee.
WRITE: / 'List of Employees'.
LOOP AT i_employee_list INTO l_employee.
WRITE: / l_employee-no, l_employee-name, l_employee-wage.
ENDLOOP.
ENDMETHOD.
METHOD display_no_of_employees.
Displays total number of employees
SKIP 2.
WRITE: / 'Total number of employees:', no_of_employees.
ENDMETHOD.
METHOD on_employee_added_to_list.
Event method
WRITE: / 'Employee added to list', ex_employee_name.
ENDMETHOD.
ENDCLASS.
Sub class LCL_BlueCollar_Employee
CLASS lcl_bluecollar_employee DEFINITION
INHERITING FROM lcl_company_employees.
PUBLIC SECTION.
METHODS:
constructor
IMPORTING im_no TYPE i
im_name TYPE string
im_hours TYPE i
im_hourly_payment TYPE i,
add_employee REDEFINITION.
lif_employee~add_employee REDEFINITION..
PRIVATE SECTION.
DATA:no TYPE i,
name TYPE string,
hours TYPE i,
hourly_payment TYPE i.
ENDCLASS.
*---- CLASS LCL_BlueCollar_Employee IMPLEMENTATION
CLASS lcl_bluecollar_employee IMPLEMENTATION.
METHOD constructor.
The superclass constructor method must be called from the subclass
constructor method
CALL METHOD super->constructor.
no = im_no.
name = im_name.
hours = im_hours.
hourly_payment = im_hourly_payment.
ENDMETHOD.
METHOD add_employee.
METHOD lif_employee~add_employee.
Calculate wage an call the superclass method add_employee to add
the employee to the employee list
DATA: l_wage TYPE i.
l_wage = hours * hourly_payment.
CALL METHOD super->add_employee
CALL METHOD super->lif_employee~add_employee
EXPORTING im_no = no
im_name = name
im_wage = l_wage.
ENDMETHOD.
ENDCLASS.
Sub class LCL_WhiteCollar_Employee
CLASS lcl_whitecollar_employee DEFINITION
INHERITING FROM lcl_company_employees.
PUBLIC SECTION.
METHODS:
constructor
IMPORTING im_no TYPE i
im_name TYPE string
im_monthly_salary TYPE i
im_monthly_deductions TYPE i,
add_employee REDEFINITION.
lif_employee~add_employee REDEFINITION.
PRIVATE SECTION.
DATA:
no TYPE i,
name TYPE string,
monthly_salary TYPE i,
monthly_deductions TYPE i.
ENDCLASS.
*---- CLASS LCL_WhiteCollar_Employee IMPLEMENTATION
CLASS lcl_whitecollar_employee IMPLEMENTATION.
METHOD constructor.
The superclass constructor method must be called from the subclass
constructor method
CALL METHOD super->constructor.
no = im_no.
name = im_name.
monthly_salary = im_monthly_salary.
monthly_deductions = im_monthly_deductions.
ENDMETHOD.
METHOD add_employee.
METHOD lif_employee~add_employee.
Calculate wage an call the superclass method add_employee to add
the employee to the employee list
DATA: l_wage TYPE i.
l_wage = monthly_salary - monthly_deductions.
CALL METHOD super->add_employee
CALL METHOD super->lif_employee~add_employee
EXPORTING im_no = no
im_name = name
im_wage = l_wage.
ENDMETHOD.
ENDCLASS.
R E P O R T
DATA:
Object references
o_bluecollar_employee1 TYPE REF TO lcl_bluecollar_employee,
o_whitecollar_employee1 TYPE REF TO lcl_whitecollar_employee.
START-OF-SELECTION.
Create bluecollar employee obeject
CREATE OBJECT o_bluecollar_employee1
EXPORTING im_no = 1
im_name = 'Gylle Karen'
im_hours = 38
im_hourly_payment = 75.
Register event for o_bluecollar_employee1
SET HANDLER o_bluecollar_employee1->on_employee_added_to_list
FOR o_bluecollar_employee1.
Add bluecollar employee to employee list
CALL METHOD o_bluecollar_employee1->add_employee
CALL METHOD o_bluecollar_employee1->lif_employee~add_employee
EXPORTING im_no = 1
im_name = 'Gylle Karen'
im_wage = 0.
Create whitecollar employee obeject
CREATE OBJECT o_whitecollar_employee1
EXPORTING im_no = 2
im_name = 'John Dickens'
im_monthly_salary = 10000
im_monthly_deductions = 2500.
Register event for o_whitecollar_employee1
SET HANDLER o_whitecollar_employee1->on_employee_added_to_list
FOR o_whitecollar_employee1.
Add bluecollar employee to employee list
CALL METHOD o_whitecollar_employee1->add_employee
CALL METHOD o_whitecollar_employee1->lif_employee~add_employee
EXPORTING im_no = 1
im_name = 'John Dickens'
im_wage = 0.
Display employee list and number of employees.
CALL METHOD o_whitecollar_employee1->display_employee_list.
CALL METHOD o_whitecollar_employee1->display_no_of_employees.
Reward Points, if useful.
Regards,
Manoj Kumar -
Hi ,
I want to know that by using oops concepts rather then traditional reporting ,is there any significant improvemnet in performance of report execution and if yes then why?Hi Smita,
OOPS programing is not for the perfomace improvement. but it is for the modularisation of the program. and also you can reuse the code in future and maintaince is also very less in future.
As far as the performace point of view if doesn't increase the performacne because ABAP concept will remain the same.
Thanks,
Chidanand -
can any give some important faq's and some data regarding oops concept in abap.its urgent
Hi,
check the below links lot of info and examples r there
http://www.sapgenie.com/abap/OO/index.htm
http://www.geocities.com/victorav15/sapr3/abap_ood.html
http://www.brabandt.de/html/abap_oo.html
Check this cool weblog:
/people/thomas.jung3/blog/2004/12/08/abap-persistent-classes-coding-without-sql
/people/thomas.jung3/blog/2004/12/08/abap-persistent-classes-coding-without-sql
http://help.sap.com/saphelp_nw04/helpdata/en/c3/225b6254f411d194a60000e8353423/frameset.htm
http://www.sapgenie.com/abap/OO/
http://www.sapgenie.com/abap/OO/index.htm
http://help.sap.com/saphelp_nw04/helpdata/en/c3/225b5654f411d194a60000e8353423/content.htm
http://www.esnips.com/doc/375fff1b-5a62-444d-8ec1-55508c308b17/prefinalppt.ppt
http://www.esnips.com/doc/2c76dc57-e74a-4539-a20e-29383317e804/OO-abap.pdf
http://www.esnips.com/doc/5c65b0dd-eddf-4512-8e32-ecd26735f0f2/prefinalppt.ppt
http://www.allsaplinks.com/
http://www.sap-img.com/
http://www.sapgenie.com/
http://help.sap.com
http://www.sapgenie.com/abap/OO/
http://www.sapgenie.com/abap/OO/index.htm
http://www.sapgenie.com/abap/controls/index.htm
http://www.esnips.com/doc/2c76dc57-e74a-4539-a20e-29383317e804/OO-abap.pdf
http://www.esnips.com/doc/0ef39d4b-586a-4637-abbb-e4f69d2d9307/SAP-CONTROLS-WORKSHOP.pdf
http://www.sapgenie.com/abap/OO/index.htm
http://help.sap.com/saphelp_erp2005/helpdata/en/ce/b518b6513611d194a50000e8353423/frameset.htm
http://www.sapgenie.com/abap/OO/
these links
http://help.sap.com/saphelp_47x200/helpdata/en/ce/b518b6513611d194a50000e8353423/content.htm
For funtion module to class
http://help.sap.com/saphelp_47x200/helpdata/en/c3/225b5954f411d194a60000e8353423/content.htm
for classes
http://help.sap.com/saphelp_47x200/helpdata/en/c3/225b5c54f411d194a60000e8353423/content.htm
for methods
http://help.sap.com/saphelp_47x200/helpdata/en/08/d27c03b81011d194f60000e8353423/content.htm
for inheritance
http://help.sap.com/saphelp_47x200/helpdata/en/dd/4049c40f4611d3b9380000e8353423/content.htm
for interfaces
http://help.sap.com/saphelp_47x200/helpdata/en/c3/225b6254f411d194a60000e8353423/content.htm
For Materials:
1) http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCABA/BCABA.pdf -- Page no: 1291
2) http://esnips.com/doc/5c65b0dd-eddf-4512-8e32-ecd26735f0f2/prefinalppt.ppt
3) http://esnips.com/doc/2c76dc57-e74a-4539-a20e-29383317e804/OO-abap.pdf
4) http://esnips.com/doc/0ef39d4b-586a-4637-abbb-e4f69d2d9307/SAP-CONTROLS-WORKSHOP.pdf
5) http://esnips.com/doc/92be4457-1b6e-4061-92e5-8e4b3a6e3239/Object-Oriented-ABAP.ppt
6) http://esnips.com/doc/448e8302-68b1-4046-9fef-8fa8808caee0/abap-objects-by-helen.pdf
7) http://esnips.com/doc/39fdc647-1aed-4b40-a476-4d3042b6ec28/class_builder.ppt
8) http://www.amazon.com/gp/explorer/0201750805/2/ref=pd_lpo_ase/102-9378020-8749710?ie=UTF8
1) http://www.erpgenie.com/sap/abap/OO/index.htm
2) http://help.sap.com/saphelp_nw04/helpdata/en/ce/b518b6513611d194a50000e8353423/frameset.htm
Regards,
Priyanka. -
DIfference Between OOPS ALV and WEBDYNPRO FOR ABAP ALV?
Hi to All,
i want some information that What is main difference when we develop ALV Report in OOPS and WEBDYNPRO For ABAP.which is good n in what way it is good?
In the Same way I m also want know that WHICH IS BETTER AMONG WEBDYNPRO FOR JAVA/ABAP.In which way?
Regards,
Ravi KThanku for ur valuble Information.
could u give me information regarding OOPS ALV and WEBDYNPRO FOR ABAP ALV?which is better?is there differences?
Edited by: ravi k on Mar 26, 2008 12:23 PM -
Can u explain me how to work with OOPs ABAP
Hi,
Can u explain me how to work with OOPS Abap, If possible pls send me some sample programs regarding OOps concept used in Realtime.
Thanks.hii,
Please check this online document (starting page 1291).
http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCABA/BCABA.pdf
Also check this links as well.
http://help.sap.com/saphelp_nw2004s/helpdata/en/ce/b518b6513611d194a50000e8353423/frameset.htm
http://www.sapgenie.com/abap/OO/
http://www.futureobjects.de/content/intro_oo_e.html
http://www.sap-img.com/abap/business-add-in-you-need-to-understand-abap-oo-interface-concept.htm
/people/ravikumar.allampallam/blog/2005/02/11/abap-oo-in-action
What is Object Orientation?
Object orientation (OO), or to be more precise, object-oriented programming, is a problem-solving method in which the software solution reflects objects in the real world.
A comprehensive introduction to object orientation as a whole would go far beyond the limits of this introduction to ABAP Objects. This documentation introduces a selection of terms that are used universally in object orientation and also occur in ABAP Objects. In subsequent sections, it goes on to discuss in more detail how these terms are used in ABAP Objects. The end of this section contains a list of further reading, with a selection of titles about object orientation.
Objects
An object is a section of source code that contains data and provides services. The data forms the attributes of the object. The services are known as methods (also known as operations or functions). Typically, methods operate on private data (the attributes, or state of the object), which is only visible to the methods of the object. Thus the attributes of an object cannot be changed directly by the user, but only by the methods of the object. This guarantees the internal consistency of the object.
Classes
Classes describe objects. From a technical point of view, objects are runtime instances of a class. In theory, you can create any number of objects based on a single class. Each instance (object) of a class has a unique identity and its own set of values for its attributes.
Object References
In a program, you identify and address objects using unique object references. Object references allow you to access the attributes and methods of an object.
In object-oriented programming, objects usually have the following properties:
Encapsulation
Objects restrict the visibility of their resources (attributes and methods) to other users. Every object has an interface, which determines how other objects can interact with it. The implementation of the object is encapsulated, that is, invisible outside the object itself.
Polymorphism
Identical (identically-named) methods behave differently in different classes. Object-oriented programming contains constructions called interfaces. They enable you to address methods with the same name in different objects. Although the form of address is always the same, the implementation of the method is specific to a particular class.
Inheritance
You can use an existing class to derive a new class. Derived classes inherit the data and methods of the superclass. However, they can overwrite existing methods, and also add new ones.
Uses of Object Orientation
Below are some of the advantages of object-oriented programming:
Complex software systems become easier to understand, since object-oriented structuring provides a closer representation of reality than other programming techniques.
In a well-designed object-oriented system, it should be possible to implement changes at class level, without having to make alterations at other points in the system. This reduces the overall amount of maintenance required.
Through polymorphism and inheritance, object-oriented programming allows you to reuse individual components.
In an object-oriented system, the amount of work involved in revising and maintaining the system is reduced, since many problems can be detected and corrected in the design phase.
Achieving these goals requires:
Object-oriented programming languages
Object-oriented programming techniques do not necessarily depend on object-oriented programming languages. However, the efficiency of object-oriented programming depends directly on how object-oriented language techniques are implemented in the system kernel.
Object-oriented tools
Object-oriented tools allow you to create object-oriented programs in object-oriented languages. They allow you to model and store development objects and the relationships between them.
Object-oriented modeling
The object-orientation modeling of a software system is the most important, most time-consuming, and most difficult requirement for attaining the above goals. Object-oriented design involves more than just object-oriented programming, and provides logical advantages that are independent of the actual implementation
http://www.sapgenie.com/abap/OO/index.htm
http://www.geocities.com/victorav15/sapr3/abap_ood.html
http://www.brabandt.de/html/abap_oo.html
Check this cool weblog:
/people/thomas.jung3/blog/2004/12/08/abap-persistent-classes-coding-without-sql
/people/thomas.jung3/blog/2004/12/08/abap-persistent-classes-coding-without-sql
/people/sap.user72/blog/2005/05/10/a-small-tip-for-the-beginners-in-oo-abap
/people/ravikumar.allampallam/blog/2005/02/11/abap-oo-in-action
/people/thomas.jung3/blog/2005/09/08/oo-abap-dynpro-programming
http://help.sap.com/saphelp_nw04/helpdata/en/c3/225b6254f411d194a60000e8353423/frameset.htm
http://www.sapgenie.com/abap/OO/
http://www.sapgenie.com/abap/OO/index.htm
http://help.sap.com/saphelp_nw04/helpdata/en/c3/225b5654f411d194a60000e8353423/content.htm
http://www.esnips.com/doc/375fff1b-5a62-444d-8ec1-55508c308b17/prefinalppt.ppt
http://www.esnips.com/doc/2c76dc57-e74a-4539-a20e-29383317e804/OO-abap.pdf
http://www.esnips.com/doc/5c65b0dd-eddf-4512-8e32-ecd26735f0f2/prefinalppt.ppt
http://www.allsaplinks.com/
http://www.sap-img.com/
http://www.sapgenie.com/
http://help.sap.com
http://www.sapgenie.com/abap/OO/
http://www.sapgenie.com/abap/OO/index.htm
http://www.sapgenie.com/abap/controls/index.htm
http://www.esnips.com/doc/2c76dc57-e74a-4539-a20e-29383317e804/OO-abap.pdf
http://www.esnips.com/doc/0ef39d4b-586a-4637-abbb-e4f69d2d9307/SAP-CONTROLS-WORKSHOP.pdf
http://www.sapgenie.com/abap/OO/index.htm
http://help.sap.com/saphelp_erp2005/helpdata/en/ce/b518b6513611d194a50000e8353423/frameset.htm
http://www.sapgenie.com/abap/OO/
these links
http://help.sap.com/saphelp_47x200/helpdata/en/ce/b518b6513611d194a50000e8353423/content.htm
For funtion module to class
http://help.sap.com/saphelp_47x200/helpdata/en/c3/225b5954f411d194a60000e8353423/content.htm
for classes
http://help.sap.com/saphelp_47x200/helpdata/en/c3/225b5c54f411d194a60000e8353423/content.htm
for methods
http://help.sap.com/saphelp_47x200/helpdata/en/08/d27c03b81011d194f60000e8353423/content.htm
for inheritance
http://help.sap.com/saphelp_47x200/helpdata/en/dd/4049c40f4611d3b9380000e8353423/content.htm
for interfaces
http://help.sap.com/saphelp_47x200/helpdata/en/c3/225b6254f411d194a60000e8353423/content.htm
For basic stuff......
abap oops
http://esnips.com/doc/5c65b0dd-eddf-4512-8e32-ecd26735f0f2/prefinalppt.ppt
http://esnips.com/doc/2c76dc57-e74a-4539-a20e-29383317e804/OO-abap.pdf
http://esnips.com/doc/0ef39d4b-586a-4637-abbb-e4f69d2d9307/SAP-CONTROLS-WORKSHOP.pdf
http://esnips.com/doc/92be4457-1b6e-4061-92e5-8e4b3a6e3239/Object-Oriented-ABAP.ppt
http://esnips.com/doc/448e8302-68b1-4046-9fef-8fa8808caee0/abap-objects-by-helen.pdf
http://esnips.com/doc/39fdc647-1aed-4b40-a476-4d3042b6ec28/class_builder.ppt
http://help.sap.com/saphelp_nw04/helpdata/en/c3/225b5654f411d194a60000e8353423/frameset.htm
ABAP Business Development and Service Provisioning/ABAP Objects
General information
What is Object Orientation?
some blogs
A small tip for the beginners in OO ABAP
Object Oriented ABAP (OO-ABAP)
and others wiki OO Abap
cheers,
sharad
Edited by: sharad narayan on Apr 29, 2008 12:19 PM -
Hi to all,
can anyone give the information regarding oops in abap,
like how it is used and the scope of it in abap.
points will be rewarded,
rushi.
Message was edited by:
Rushi THi Rushi,
Check this info.
Object Orientation
A programming technique in which solutions reflect real world objects
What are objects?
An object is an instantiation of a class. E.g. If Animal is a class, A cat can be an object of that class.
With respect to code, Object refers to a set of services (methods/attributes) and can contain data
what are classes?
A class defines the properties of an object. A class can be instantiated as many number of times
Advantages of Object Orientated approach
Easier to understand when the system is complex
Easy to make changes
Encapsulation - Can restrict the visibility of the data ( Restrict the access to the data )
Polymorphism - Identically named methods behave differently in different classes
Inheritance - You can use an existing class to define a new class
Polymorphism and inheritance lead to code reuse
Classes in abap
Classes in ABAP are either local or global
Global classes are declared in class builder (SE24 )
Local classes are declared within programs
Components of a class
Attributes : Internal data fields of class
Attributes can be either instance attributes specific to each instance of the class ( object ) or static attributes which are common to all instances
Methods :
Subroutines / procedures in a class that define the behavior of the object. Methods can also be instance methods or static methods
Encapsulation in ABAP
Encapsulation is obtained through the restriction in visibility of attributes / methods attained through the definition of Public, Private and Protected section of a class
Public Section
All of the components declared in the public section are accessible to all users of the class, and to the methods of the class and any classes that inherit from it. The public components of the class form the interface between the class and its users.
Protected Section
All of the components declared in the protected section are accessible to all methods of the class and of classes that inherit from it.
Private Section
Components that you declare in the private section are only visible in the methods of the same class.
Inheritance in ABAP
Inheritance allows you to derive a class based on an already existing class.
CLASS <subclass> DEFINITION INHERITING FROM <superclass>.
ENDCLASS.
CLASS <subclass> IMPLEMENTATION.
ENDCLASS.
All attributes / methods of super class become the property of the subclass too. Only public and protected attributes / methods are visible in the subclass
Polymorphism in ABAP
when methods with same name perform differently under different circumstances we call it polymorphism.
Methods redefined in a subclass is an example for Polymorphism
Interfaces
Interfaces are used to define the model of a class.
They also like classes can be either local or global.
Global interfaces are defined through SE24 and local interfaces are defined in program.
Please check this online document (starting page 1291).
http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCABA/BCABA.pdf
Also check this links as well.
http://help.sap.com/saphelp_nw2004s/helpdata/en/ce/b518b6513611d194a50000e8353423/frameset.htm
http://www.sapgenie.com/abap/OO/
http://www.futureobjects.de/content/intro_oo_e.html
http://www.sap-img.com/abap/business-add-in-you-need-to-understand-abap-oo-interface-concept.htm
/people/ravikumar.allampallam/blog/2005/02/11/abap-oo-in-action
check the below links lot of info and examples r there
http://www.sapgenie.com/abap/OO/index.htm
http://www.geocities.com/victorav15/sapr3/abap_ood.html
http://www.brabandt.de/html/abap_oo.html
Check this cool weblog:
/people/thomas.jung3/blog/2004/12/08/abap-persistent-classes-coding-without-sql
/people/thomas.jung3/blog/2004/12/08/abap-persistent-classes-coding-without-sql
http://help.sap.com/saphelp_nw04/helpdata/en/c3/225b6254f411d194a60000e8353423/frameset.htm
http://www.sapgenie.com/abap/OO/
http://www.sapgenie.com/abap/OO/index.htm
http://help.sap.com/saphelp_nw04/helpdata/en/c3/225b5654f411d194a60000e8353423/content.htm
http://www.esnips.com/doc/375fff1b-5a62-444d-8ec1-55508c308b17/prefinalppt.ppt
http://www.esnips.com/doc/2c76dc57-e74a-4539-a20e-29383317e804/OO-abap.pdf
http://www.esnips.com/doc/5c65b0dd-eddf-4512-8e32-ecd26735f0f2/prefinalppt.ppt
http://www.allsaplinks.com/
http://www.sap-img.com/
http://www.sapgenie.com/
Hope this resolves your query.
<b>Reward all the helpful answers.</b>
Regards -
hi all
this regarding oops concepts.
i would like to know if i can write any name for 1. class 2. object. 3. method???
how many class (es) are available ? pl provide the list of classes
how many method (s) are available ? pl provide the list of methods
and same for objects pl.
thanx
rockyHi
please have a look into se24 transaction and check the classes and methods,
and close u r previous threads if sloved
reward points to all helpful answers
kiran.M -
ALV grid disply with edit columns in output
Hi all,
i am using CALL METHOD MY_GRID->SET_TABLE_FOR_FIRST_DISPLAY
to display the output in alv format.there is 3 edit columns in output display.
if i fill one field & then put 'ENTER' then other two fields of that row should be filled with the appropriate data from the program.still control should be in output display.
which method i should use to go inside the program when i put 'ENTER' on any field of ALV output disply & how to use those methods inside the program.
i need some materials regarding OOPS (class, method ) . now i want to put OOPS concept in alv display.
correct answers will be rewarded.
Thanks & regardsHi,
Check,
OOPS
http://help.sap.com/saphelp_nw2004s/helpdata/en/ce/b518b6513611d194a50000e8353423/frameset.htm
ABAP Objects
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/webcontent/uuid/35eaef9c-0b01-0010-dd8b-e3b0f9ed7ccb#section7 [original link is broken]
check the below links lot of info and examples r there for OOPS
http://www.sapgenie.com/abap/OO/index.htm
http://www.geocities.com/victorav15/sapr3/abap_ood.html
http://www.brabandt.de/html/abap_oo.html
http://www.sapgenie.com/abap/OO/
http://www.sapgenie.com/abap/OO/index.htm
http://help.sap.com/saphelp_nw04/helpdata/en/c3/225b5654f411d194a60000e8353423/content.htm
http://www.esnips.com/doc/375fff1b-5a62-444d-8ec1-55508c308b17/prefinalppt.ppt
<b>Reward if helpful.</b> -
When I connect my iPad to my new Mac Pro, I can't see my pictures
When I connect my iPad to my new Mac Pro, I can't see my pictures on iPhoto in Mac Pro under devices.I want to import my photos from iPad to Mac Book. Can you please help me?
Thanks and regards,Oops ... You are correct. I misread your question. My sincere apologies. You want to import the photos from the iPad into iPhoto - not the other way around.
Connect the iPad to the Mac with the cable and launch iPhoto. Your iPad should appears under the devices heading in iPhoto - in the left sidebar - just like it does in iTunes. Click on the iPad name. Then you can import the photos. -
LVOOP: Children aren't Friends of their Parents' Friends
OK, so I don't know if it's a bug, a poor design decision, or my lack of understanding, BUT here goes...
(talking LV2013 here)
I have two preant classes, from which I am making plugin child classes.
I would LIKE some of their methods to be restricted from the Public sphere.
So... I make the two classes Friends, and the methods Community. It works great!
However... their plugin Child classes CANNOT access these Community methods.
That seems stupid to me. It means I have to choose between having child classes and accessing friends' methods. If children inherent their parents' methods then why can't they inherit the ability of their parents to access their friends methods?
I think I am going to have to create protected parent method wrappers around friend methods?
Any insights would be appreciated. I'd really like to see this changed, but not being a LVOOP expert like so many of you out there, I'd love to learn the rationale behind this.
Any insights?When it comes to decisions behind the design with regards OOP in general, I tend to find it helpful to look for the answer with regards to C++ or more "established" OOP programming languages. Often times I find a lot of these questions have been asked before.
Here is a related link
Essentially, this gives you the ability to allow children access to the frienders data if you feel they may need it (make it available in protected parent method wrappers), but does not automatically allow it. Think about if you wanted some of the friender's methods available to the friendees' children, but not all the methods? You'd have no way to do this if all methods were automatically available to the children. There are other reasons as well in the link above but I won't reiterate for redundancy redundancy sake.
CLA, LabVIEW Versions 2010-2013 -
Could not signon to the database with user VP1!!
Hello All,
people tools : 8.53 - windows 7, my local one
peoplesoft application: HRMS 9.2 version -- oracle linux OS
oracle 11g database -- oracle linux OS
when i start the app server domain for HSMS application using psadmin, its not starting
when i look for appserv logs, i got this error
Password has expired
could not sign on to database with user vp1
i can able to login into the database, and able to connect to SYSADM schema also
so i tried manually updated the password operpswd in sysadm.psoprdefn table as VP1 and updated,. committed.
and tried to connect to database using datamover to encrypt the password in my local machine, it says tns could not find the id specified
but i can able to ping to linux database , tnsping is working, and i can able to establish a database session from my local one to linux server.
Still unable to start the HRMS application domain in linux server
kindly help.
Regards.oops sorry Nicolas. ITs my typo mistake.
Its peoplesoft finance application. not the hrms. and user id and password is VP1/VP1 was set during implementation.
After implementation , we have not used the application for some months. I think that may be the reason for password expire.
the following are the error:
File: sql access ManagerSQL error . stmt #: 2 Error Position: 0 Return:28001 - ORA 28001: the password has expired
SQL Access Manager: File: SQL Access ManagerSQL error. stmt #: 2 Error Position: 0 Return: 2 ORA 28001: the password has expired
Database Options: override_connection_reset:0
Database Signon: Could not sign on to database PSFNDEMO with user VP1
Server failed to start
End boot attempt on domain PSFNDEMO
i also performed the steps pointed by Hakan in your blog
On The Peoplesoft Road: Peoplesoft passwords
Still no luck.
kindly suggest
Thanks. -
I have a question regarding my txt/alert tones. I recently updated my iPhone 5's software without first backing it up on iCloud or my computer (oops). After my phone finished updating, i lost the new ringtones and txt/alert tones i had bought. I connected my iPhone to my computer and sync'd it hoping that it could download my purchases from the itunes store and then put them back on to my phone but no such luck. When i look at my iphone on my computer and look at tones, they do not show up at all. However, if i click on the "On This iPhone" tab and click on "Tones" the deleted ringtones and altert tones show up...they are just grey'd out and have a dotted circle to the left of them. I also tried to go to the iTunes store on my phone and redownload them and it tells me that i have already purchased this ringtone and asks me if i want to buy it again. I press Cancel. I know when i do that with music it would usually let me redownload the song without buying it again but it wont let me with the ringtones...so how do i get them back? any help would be greatly appreicated
Greetings,
I've never seen this issue, and I handle many iPads, of all versions. WiFi issues are generally local to the WiFi router - they are not all of the same quality, range, immunity to interference, etc. You have distance, building construction, and the biggie - interference.
At home, I use Apple routers, and have no issues with any of my WiFi enabled devices, computers, mobile devices, etc - even the lowly PeeCees. I have locations where I have Juniper Networks, as well as Aruba, and a few Netgears - all of them work as they should.
The cheaper routers, Linksys, D-Link, Seimens home units, and many other no name devices have caused issues of various kinds, and even connectivity.
I have no idea what Starbucks uses, but I always have a good connection, and I go there nearly every morning and get some work done, as well as play.
You could try changing channels, 2.4 to 5 Gigs, changing locations of the router. I have had to do all of these at one time or another over the many years that I have been a Network Engineer.
Good Luck - Cheers,
M.
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