CDS标准视图：维护策略描述 I_MaintStrategyTextData

@EndUserText.label: 'Maintenance Strategy - Text'
@ObjectModel.dataCategory: #TEXT
@VDM.viewType: #COMPOSITE
@AbapCatalog.sqlViewName: 'IMAINTSTRTXTDATA'
@AbapCatalog.compiler.compareFilter: true
@AccessControl.authorizationCheck: #CHECK
@ObjectModel.representativeKey: 'MaintenanceStrategy'

@ClientHandling.algorithm: #SESSION_VARIABLE
@ObjectModel.usageType.dataClass: #ORGANIZATIONAL
@ObjectModel.usageType.serviceQuality: #C
@ObjectModel.usageType.sizeCategory: #M
@Metadata.ignorePropagatedAnnotations: true

@Analytics: {
  dataExtraction: {
    enabled: true
  }
}

@ObjectModel.modelingPattern:   #EXTRACTION_DATA_SOURCE
@ObjectModel.supportedCapabilities:     [ #EXTRACTION_DATA_SOURCE ]

define view I_MaintStrategyTextData
    as select from I_MaintenanceStrategyT

    association [0..1] to I_MaintenanceStrategyData   as _MaintenanceStrategy   on _MaintenanceStrategy.MaintenanceStrategy = $projection.MaintenanceStrategy

    association [0..1] to I_Language                  as _Language              on _Language.Language = $projection.Language

{

      @ObjectModel.foreignKey.association: '_MaintenanceStrategy'
  key MaintenanceStrategy,

      @ObjectModel.foreignKey.association: '_Language'
      @Semantics.language: true
  key Language,

      @Semantics.text: true
      MaintenanceStrategyDesc,

      // Propagate association(s)
      _MaintenanceStrategy,
      _Language
}