topic abap objects in Application Development and Automation Discussions

topic abap objects in Application Development and Automation Discussions https://community.sap.com/t5/application-development-and-automation-discussions/abap-objects/m-p/2460283#M551932 <HTML><HEAD></HEAD><BODY><P>Hello experts,</P><P> I am a new the concept of abap objects..</P><P> </P><P> 1.i want programs regarding to polymorphism,inheitance like each and every abap objects.</P><P> </P><P> 2.i want to how can i use alv in abap objects and what type-pools can i use....</P><P> help me please.....</P></BODY></HTML> Tue, 26 Jun 2007 09:48:33 GMT Former Member 2007-06-26T09:48:33Z abap objects https://community.sap.com/t5/application-development-and-automation-discussions/abap-objects/m-p/2460283#M551932 <HTML><HEAD></HEAD><BODY><P>Hello experts,</P><P> I am a new the concept of abap objects..</P><P> </P><P> 1.i want programs regarding to polymorphism,inheitance like each and every abap objects.</P><P> </P><P> 2.i want to how can i use alv in abap objects and what type-pools can i use....</P><P> help me please.....</P></BODY></HTML> Tue, 26 Jun 2007 09:48:33 GMT https://community.sap.com/t5/application-development-and-automation-discussions/abap-objects/m-p/2460283#M551932 Former Member 2007-06-26T09:48:33Z Re: abap objects https://community.sap.com/t5/application-development-and-automation-discussions/abap-objects/m-p/2460284#M551933 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>check the below links lot of info and examples r there</P><P></P><P><A href="http://www.sapgenie.com/abap/OO/index.htm" target="test_blank">http://www.sapgenie.com/abap/OO/index.htm</A></P><P><A href="http://www.geocities.com/victorav15/sapr3/abap_ood.html" target="test_blank">http://www.geocities.com/victorav15/sapr3/abap_ood.html</A></P><P><A href="http://www.brabandt.de/html/abap_oo.html" target="test_blank">http://www.brabandt.de/html/abap_oo.html</A></P><P></P><P>Check this cool weblog:</P><P>/people/thomas.jung3/blog/2004/12/08/abap-persistent-classes-coding-without-sql</P><P>/people/thomas.jung3/blog/2004/12/08/abap-persistent-classes-coding-without-sql</P><P><A href="http://help.sap.com/saphelp_nw04/helpdata/en/c3/225b6254f411d194a60000e8353423/frameset.htm" target="test_blank">http://help.sap.com/saphelp_nw04/helpdata/en/c3/225b6254f411d194a60000e8353423/frameset.htm</A></P><P></P><P></P><P></P><P></P><P><A href="http://www.sapgenie.com/abap/OO/" target="test_blank">http://www.sapgenie.com/abap/OO/</A></P><P><A href="http://www.sapgenie.com/abap/OO/index.htm" target="test_blank">http://www.sapgenie.com/abap/OO/index.htm</A></P><P><A href="http://help.sap.com/saphelp_nw04/helpdata/en/c3/225b5654f411d194a60000e8353423/content.htm" target="test_blank">http://help.sap.com/saphelp_nw04/helpdata/en/c3/225b5654f411d194a60000e8353423/content.htm</A></P><P><A href="http://www.esnips.com/doc/375fff1b-5a62-444d-8ec1-55508c308b17/prefinalppt.ppt" target="test_blank">http://www.esnips.com/doc/375fff1b-5a62-444d-8ec1-55508c308b17/prefinalppt.ppt</A></P><P></P><P><A href="http://www.esnips.com/doc/2c76dc57-e74a-4539-a20e-29383317e804/OO-abap.pdf" target="test_blank">http://www.esnips.com/doc/2c76dc57-e74a-4539-a20e-29383317e804/OO-abap.pdf</A></P><P><A href="http://www.esnips.com/doc/5c65b0dd-eddf-4512-8e32-ecd26735f0f2/prefinalppt.ppt" target="test_blank">http://www.esnips.com/doc/5c65b0dd-eddf-4512-8e32-ecd26735f0f2/prefinalppt.ppt</A></P><P><A href="http://www.allsaplinks.com/" target="test_blank">http://www.allsaplinks.com/</A></P><P><A href="http://www.sap-img.com/" target="test_blank">http://www.sap-img.com/</A></P><P><A href="http://www.sapgenie.com/" target="test_blank">http://www.sapgenie.com/</A></P><P><A href="http://help.sap.com" target="test_blank">http://help.sap.com</A></P><P><A href="http://www.sapgenie.com/abap/OO/" target="test_blank">http://www.sapgenie.com/abap/OO/</A></P><P><A href="http://www.sapgenie.com/abap/OO/index.htm" target="test_blank">http://www.sapgenie.com/abap/OO/index.htm</A></P><P><A href="http://www.sapgenie.com/abap/controls/index.htm" target="test_blank">http://www.sapgenie.com/abap/controls/index.htm</A></P><P><A href="http://www.esnips.com/doc/2c76dc57-e74a-4539-a20e-29383317e804/OO-abap.pdf" target="test_blank">http://www.esnips.com/doc/2c76dc57-e74a-4539-a20e-29383317e804/OO-abap.pdf</A></P><P><A href="http://www.esnips.com/doc/0ef39d4b-586a-4637-abbb-e4f69d2d9307/SAP-CONTROLS-WORKSHOP.pdf" target="test_blank">http://www.esnips.com/doc/0ef39d4b-586a-4637-abbb-e4f69d2d9307/SAP-CONTROLS-WORKSHOP.pdf</A></P><P><A href="http://www.sapgenie.com/abap/OO/index.htm" target="test_blank">http://www.sapgenie.com/abap/OO/index.htm</A></P><P><A href="http://help.sap.com/saphelp_erp2005/helpdata/en/ce/b518b6513611d194a50000e8353423/frameset.htm" target="test_blank">http://help.sap.com/saphelp_erp2005/helpdata/en/ce/b518b6513611d194a50000e8353423/frameset.htm</A></P><P><A href="http://www.sapgenie.com/abap/OO/" target="test_blank">http://www.sapgenie.com/abap/OO/</A></P><P></P><P></P><P>these links </P><P><A href="http://help.sap.com/saphelp_47x200/helpdata/en/ce/b518b6513611d194a50000e8353423/content.htm" target="test_blank">http://help.sap.com/saphelp_47x200/helpdata/en/ce/b518b6513611d194a50000e8353423/content.htm</A></P><P></P><P>For funtion module to class</P><P><A href="http://help.sap.com/saphelp_47x200/helpdata/en/c3/225b5954f411d194a60000e8353423/content.htm" target="test_blank">http://help.sap.com/saphelp_47x200/helpdata/en/c3/225b5954f411d194a60000e8353423/content.htm</A></P><P></P><P>for classes</P><P><A href="http://help.sap.com/saphelp_47x200/helpdata/en/c3/225b5c54f411d194a60000e8353423/content.htm" target="test_blank">http://help.sap.com/saphelp_47x200/helpdata/en/c3/225b5c54f411d194a60000e8353423/content.htm</A></P><P></P><P>for methods</P><P><A href="http://help.sap.com/saphelp_47x200/helpdata/en/08/d27c03b81011d194f60000e8353423/content.htm" target="test_blank">http://help.sap.com/saphelp_47x200/helpdata/en/08/d27c03b81011d194f60000e8353423/content.htm</A></P><P></P><P>for inheritance</P><P><A href="http://help.sap.com/saphelp_47x200/helpdata/en/dd/4049c40f4611d3b9380000e8353423/content.htm" target="test_blank">http://help.sap.com/saphelp_47x200/helpdata/en/dd/4049c40f4611d3b9380000e8353423/content.htm</A></P><P></P><P>for interfaces</P><P><A href="http://help.sap.com/saphelp_47x200/helpdata/en/c3/225b6254f411d194a60000e8353423/content.htm" target="test_blank">http://help.sap.com/saphelp_47x200/helpdata/en/c3/225b6254f411d194a60000e8353423/content.htm</A></P><P></P><P></P><P></P><P></P><P>For Materials:</P><P>1) <A href="http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCABA/BCABA.pdf" target="test_blank">http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCABA/BCABA.pdf</A> -- Page no: 1291</P><P>2) <A href="http://esnips.com/doc/5c65b0dd-eddf-4512-8e32-ecd26735f0f2/prefinalppt.ppt" target="test_blank">http://esnips.com/doc/5c65b0dd-eddf-4512-8e32-ecd26735f0f2/prefinalppt.ppt</A></P><P>3) <A href="http://esnips.com/doc/2c76dc57-e74a-4539-a20e-29383317e804/OO-abap.pdf" target="test_blank">http://esnips.com/doc/2c76dc57-e74a-4539-a20e-29383317e804/OO-abap.pdf</A></P><P>4) <A href="http://esnips.com/doc/0ef39d4b-586a-4637-abbb-e4f69d2d9307/SAP-CONTROLS-WORKSHOP.pdf" target="test_blank">http://esnips.com/doc/0ef39d4b-586a-4637-abbb-e4f69d2d9307/SAP-CONTROLS-WORKSHOP.pdf</A></P><P>5) <A href="http://esnips.com/doc/92be4457-1b6e-4061-92e5-8e4b3a6e3239/Object-Oriented-ABAP.ppt" target="test_blank">http://esnips.com/doc/92be4457-1b6e-4061-92e5-8e4b3a6e3239/Object-Oriented-ABAP.ppt</A></P><P>6) <A href="http://esnips.com/doc/448e8302-68b1-4046-9fef-8fa8808caee0/abap-objects-by-helen.pdf" target="test_blank">http://esnips.com/doc/448e8302-68b1-4046-9fef-8fa8808caee0/abap-objects-by-helen.pdf</A></P><P>7) <A href="http://esnips.com/doc/39fdc647-1aed-4b40-a476-4d3042b6ec28/class_builder.ppt" target="test_blank">http://esnips.com/doc/39fdc647-1aed-4b40-a476-4d3042b6ec28/class_builder.ppt</A></P><P><span class="lia-unicode-emoji" title=":smiling_face_with_sunglasses:">😎</span> <A href="http://www.amazon.com/gp/explorer/0201750805/2/ref=pd_lpo_ase/102-9378020-8749710?ie=UTF8" target="test_blank">http://www.amazon.com/gp/explorer/0201750805/2/ref=pd_lpo_ase/102-9378020-8749710?ie=UTF8</A></P><P></P><P>1) <A href="http://www.erpgenie.com/sap/abap/OO/index.htm" target="test_blank">http://www.erpgenie.com/sap/abap/OO/index.htm</A></P><P>2) <A href="http://help.sap.com/saphelp_nw04/helpdata/en/ce/b518b6513611d194a50000e8353423/frameset.htm" target="test_blank">http://help.sap.com/saphelp_nw04/helpdata/en/ce/b518b6513611d194a50000e8353423/frameset.htm</A> </P><P></P><P></P><P>Regards,</P><P>Priyanka.</P></BODY></HTML> Tue, 26 Jun 2007 09:50:35 GMT https://community.sap.com/t5/application-development-and-automation-discussions/abap-objects/m-p/2460284#M551933 Former Member 2007-06-26T09:50:35Z Re: abap objects https://community.sap.com/t5/application-development-and-automation-discussions/abap-objects/m-p/2460285#M551934 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>1. Inheritance</P><P></P><PRE><CODE>CLASS super_class DEFINITION. PUBLIC SECTION. Public components PROTECTED SECTION. Protected components PRIVATE SECTION. Private components ENDCLASS. CLASS sub_class DEFINITION INHERITING FROM super_class. PUBLIC SECTION. Public components Public components (super_class) PROTECTED SECTION. Protected components Protected components (super_class) PRIVATE SECTION. Private section ENDCLASS.</CODE></PRE><P>The public and protected components of the super class are visible in the subclass. </P><P>Private section of the super class is not visible in the sub classes.</P><P>Private components of the sub class can have same name as the private component of the super class.</P><P>Public and Protected components of the sub class can not have the same name as that have been used in super class.</P><P></P><P></P><P>Polymorphism</P><PRE><CODE>CLASS super_class DEFINITION. . . . . . . . . . . METHODS test_method. ENDCLASS. CLASS sub_class_one DEFINITION INHERITING FROM super_class. . . . . . . . . . METHODS test_method REDEFINTION. ENDCLASS. CLASS sub_class_two DEFINITION INHERITING FROM super_class. . . . . . . . . . METHODS test_method REDEFINTION. ENDCLASS. DATA: supr_obj type ref to super_class, sub1_obj type ref to sub_class_one, sub2_obj type ref to sub_class_two. START-OF-SELECTION. CREATE OBJECT sub1_obj. CREATE OBJECT sub2_obj. supr_obj = sub1_obj. CALL METHOD supr_obj->test_method. supr_obj = sub2_obj. CALL METHOD supr_obj->test_method. </CODE></PRE><P>Reference variables declared with static reference to a super class can dynamically point to an object of a subclass of this super class and access the components known to the super class. Methods inherited from super class may be redefined in one or more of the subclasses. This is the basis of polymorphism using inheritance.</P><P>Polymorphism here means using the same name via same interface to address differently implemented methods, belonging to different objects of different classes in the inheritance tree.</P><P></P><P></P><P>2. ALV</P><P>Step 1 : First create a program using SE80 (Object Navigator)</P><P>Step 2 : Create a Screen for the program using :</P><P> SE80 ->Program->Right click on program name->select Screen</P><P>Step 3 : Create an Input Field and a Custom Control in the Screen</P><P>Step 4 : Create GUI Status to add the exit capability</P><P>Step 5 : Create a transaction code to execute the dialog program</P><P>Step 6 : Define a class to perform the data retrieval and formatting to the screen</P><P>Step 7 : Create Object for the Class to Implement the methods and displaying the ALV Grid Control with desired functionality.</P><P></P><P></P><P>Regards,</P><P>Richa</P></BODY></HTML> Tue, 26 Jun 2007 09:55:32 GMT https://community.sap.com/t5/application-development-and-automation-discussions/abap-objects/m-p/2460285#M551934 Former Member 2007-06-26T09:55:32Z