Fetching component_name of created component in component_usage

Question

hello,
I got another problem too.
I make a single Component_Usage and create a component to this component_usage.
anzulegende_comp_usage =   wd_this->wd_cpuse_usage_z_itf_cid_a( ).
    IF anzulegende_comp_usage->has_active_component( ) IS INITIAL.
      anzulegende_comp_usage->create_component( COMPONENT_NAME = 'component_xyz' ).
    ENDIF.
but after this I can´t access the name of my created component 'component_xyz' via my  component_usage.
If I use a component_usage_group I can access the component-names but this should be possible with a single component_usage too. or am I wrong?
the solution could be to use the structure-type "wdapi_component_usage" but I want to know if this is possible with a single component_usage too?

Answer 1

Hi Thorsten.
You can use the following trick.
l_ref_cmp_usage           TYPE REF TO if_wd_component_usage,
lr_usage                  type ref to cl_wdr_component_usage,
lr_component              type ref to if_wd_component.
when you have the reference to the usage in l_re_cmp_usage just cast it to cl_wdr_component_usage and call get_child_component.
  l_ref_cmp_usage =   wd_this->wd_cpuse_soptions( ).
  IF l_ref_cmp_usage->has_active_component( ) IS INITIAL.
    l_ref_cmp_usage->create_component( ).
  ENDIF.
  lr_usage ?= l_ref_cmp_usage.
  lr_component = lr_usage->get_child_component( ).
Then you have the used component and can use the component info to get the name.
Cheers,
Sascha