dd_cds_header_annotations

@AccessControl.authorizationCheck: #NOT_REQUIRED
@EndUserText.label: 'DD: CDS Header Annotations'

@ObjectModel.usageType.serviceQuality: #A
@ObjectModel.usageType.sizeCategory: #L
@ObjectModel.usageType.dataClass: #META

define view entity dd_cds_header_annotations
  as select from ddheadanno as head_anno 
    association [0..*] to ddheadannot as _HeaderAnnoText 
                   on $projection.entityName = _HeaderAnnoText.strucobjn and
                      $projection.annoName   = _HeaderAnnoText.name  
{
  key head_anno.strucobjn  as entityName,
  @ObjectModel.text.association: '_HeaderAnnoText'
  key head_anno.name       as annoName,
  key head_anno.position   as annoPosition,
  head_anno.value          as value,
  _HeaderAnnoText
}