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danrega
2023-05-04 17:05:05 +02:00
parent fe10b5d3cf
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06_Dynamic_Programming.md
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@@ -714,6 +714,7 @@ chaining](https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?f
comes in handy, too.
``` abap
"The properties of a type are retrieved using RTTI
"In ADT, you may want to choose CTRL + SPACE after ...=> to explore the options.
DATA(some_type) = cl_abap_typedescr=>describe_by_data( var ).
@@ -730,6 +731,12 @@ DATA(components) = CAST cl_abap_structdescr(
DATA(attributes) = CAST cl_abap_classdescr(
cl_abap_classdescr=>describe_by_name( 'CL_SOME_CLASS' )
)->attributes.
"Casting and method chaining as above in contrast to the following extra declarations
"If the variables were not declared inline as in the example, there would be even more lines of code.
DATA(a) = cl_abap_typedescr=>describe_by_data( some_struc ).
DATA(b) = CAST cl_abap_structdescr( a ).
DATA(c) = b->components.
```
The following example demonstrates the dynamic creation of data objects.