b.santos/abap-cheat-sheets
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Update

Browse Source
This commit is contained in:
danrega
2023-08-25 15:16:35 +02:00
parent 8f8a3a6a10
commit ebbd9675a2
18 changed files with 1241 additions and 163 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
04_ABAP_Object_Orientation.md
View File

@@ -64,7 +64,7 @@ Classes ...
that determine the behavior of an object
- [Events](https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abenevent_glosry.htm "Glossary Entry") to trigger the processing of ABAP code
<p align="right">(<a href="#top">back to top</a>)</p>
<p align="right">(<a href="#top">⬆️ back to top</a>)</p>
### Creating Classes
@@ -145,7 +145,7 @@ of the class itself, and of its
be instantiated in methods of the class itself or of its friends. Hence,
it cannot be instantiated as an inherited component of subclasses.
<p align="right">(<a href="#top">back to top</a>)</p>
<p align="right">(<a href="#top">⬆️ back to top</a>)</p>
### Visibility of Components
@@ -193,7 +193,7 @@ CLASS local_class DEFINITION.
ENDCLASS.
```
<p align="right">(<a href="#top">back to top</a>)</p>
<p align="right">(<a href="#top">⬆️ back to top</a>)</p>
### Defining Components
@@ -278,7 +278,7 @@ CLASS local_class IMPLEMENTATION.
ENDCLASS.
```
<p align="right">(<a href="#top">back to top</a>)</p>
<p align="right">(<a href="#top">⬆️ back to top</a>)</p>
**Methods**
@@ -357,7 +357,7 @@ In the simplest form, methods can have no parameter at all. Apart from that, met
However, when using this addition, as the name implies, a default
value is set.
<p align="right">(<a href="#top">back to top</a>)</p>
<p align="right">(<a href="#top">⬆️ back to top</a>)</p>
**Constructors**
@@ -436,7 +436,7 @@ CLASS local_class IMPLEMENTATION.
ENDCLASS.
```
<p align="right">(<a href="#top">back to top</a>)</p>
<p align="right">(<a href="#top">⬆️ back to top</a>)</p>
## Working with Objects and Components
@@ -692,7 +692,7 @@ METHOD me_ref.
ENDMETHOD.
```
<p align="right">(<a href="#top">back to top</a>)</p>
<p align="right">(<a href="#top">⬆️ back to top</a>)</p>
## Notes on Inheritance
@@ -714,7 +714,7 @@ ENDMETHOD.
[`FINAL`](https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abapmethods_abstract_final.htm#!ABAP_ADDITION_2@2@)
(e. g. `CLASS global_class DEFINITION PUBLIC FINAL CREATE PUBLIC. ...`).
<p align="right">(<a href="#top">back to top</a>)</p>
<p align="right">(<a href="#top">⬆️ back to top</a>)</p>
**Excursion: Additions `ABSTRACT` and `FINAL`**
- Both classes and methods can be defined with the additions `ABSTRACT` and `FINAL`.
@@ -746,7 +746,7 @@ CLASS cls2 IMPLEMENTATION.
ENDCLASS.
```
<p align="right">(<a href="#top">back to top</a>)</p>
<p align="right">(<a href="#top">⬆️ back to top</a>)</p>
**Redefining Methods**
@@ -769,7 +769,7 @@ ENDCLASS.
> - Regarding the static constructor: When calling a subclass for the first time, the preceding static constructors of all of the entire inheritance tree must have been called first.
> - More information [here](https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abeninheritance_constructors.htm).
<p align="right">(<a href="#top">back to top</a>)</p>
<p align="right">(<a href="#top">⬆️ back to top</a>)</p>
## Notes on Polymorphism and Casting
@@ -885,7 +885,7 @@ DATA(rtti_d) = CAST cl_abap_structdescr(
)->components.
```
<p align="right">(<a href="#top">back to top</a>)</p>
<p align="right">(<a href="#top">⬆️ back to top</a>)</p>
## Notes on Interfaces
@@ -911,7 +911,7 @@ Interfaces ...
`CLASS-METHODS`, are possible. Constructors are not
possible.
<p align="right">(<a href="#top">back to top</a>)</p>
<p align="right">(<a href="#top">⬆️ back to top</a>)</p>
Defining interfaces:
- Can be done either globally in the repository or locally in an ABAP program.
@@ -1063,7 +1063,7 @@ i_ref = NEW class( ).
... intf=>const ...
```
<p align="right">(<a href="#top">back to top</a>)</p>
<p align="right">(<a href="#top">⬆️ back to top</a>)</p>
## Additional Notes
@@ -1095,7 +1095,7 @@ CLASS lo_class DEFINITION CREATE PRIVATE FRIENDS other_class ... .
CLASS global_class DEFINITION CREATE PUBLIC FRIENDS other_global_class ... .
```
<p align="right">(<a href="#top">back to top</a>)</p>
<p align="right">(<a href="#top">⬆️ back to top</a>)</p>
### Events
@@ -1151,7 +1151,7 @@ SET HANDLER handler3.
"Note that multiple handler methods can be specified.
```
<p align="right">(<a href="#top">back to top</a>)</p>
<p align="right">(<a href="#top">⬆️ back to top</a>)</p>
### Excursion: Factory Methods and Singletons as Design Patterns
@@ -1217,7 +1217,7 @@ DATA obj_factory TYPE REF TO class.
obj_factory = class=>factory_method( par = ... ).
```
<p align="right">(<a href="#top">back to top</a>)</p>
<p align="right">(<a href="#top">⬆️ back to top</a>)</p>
## More Information
You can check the subtopics of