@define()
class Annotation(SsasRenameRecord):
"""TBD.
SSAS spec: [Microsoft](https://learn.microsoft.com/en-us/openspecs/sql_server_protocols/ms-ssas-t/7a16a837-cb88-4cb2-a766-a97c4d0e1f43)
"""
object_id: int = field(eq=True)
object_type: ObjectType = field(eq=True)
name: str = field(eq=True)
value: str | None = field(eq=True, default=None)
modified_time: Final[datetime.datetime] = field(eq=False, on_setattr=setters.frozen, repr=False)
_commands: RenameCommands = field(default=SsasCommands.annotation, init=False, repr=False)
def parents_base(self) -> frozenset[LinkedEntity]:
"""Returns the parent object the annotation is describing."""
return LinkedEntity.from_iter({self.object()}, by="object")
def object(self) -> SsasTable:
"""Returns the object the annotation is describing.
Raises:
TypeError: When the Object Type doesn't map to a know SSAS entity type
"""
mapper = {
ObjectType.ATTRIBUTE_HIERARCHY: self._tabular_model.attribute_hierarchies.find,
ObjectType.CALCULATION_GROUP: self._tabular_model.calculation_groups.find,
ObjectType.COLUMN: self._tabular_model.columns.find,
ObjectType.COLUMN_PERMISSION: self._tabular_model.column_permissions.find,
ObjectType.CULTURE: self._tabular_model.cultures.find,
ObjectType.DATASOURCE: self._tabular_model.data_sources.find,
ObjectType.EXPRESSION: self._tabular_model.expressions.find,
ObjectType.HIERARCHY: self._tabular_model.hierarchies.find,
ObjectType.KPI: self._tabular_model.kpis.find,
ObjectType.LEVEL: self._tabular_model.levels.find,
ObjectType.LINGUISTIC_METADATA: self._tabular_model.linguistic_metadata.find,
ObjectType.MEASURE: self._tabular_model.measures.find,
ObjectType.MODEL: lambda _x: self._tabular_model.model,
ObjectType.PARTITION: self._tabular_model.partitions.find,
ObjectType.PERSPECTIVE: self._tabular_model.perspectives.find,
ObjectType.PERSPECTIVE_HIERARCHY: self._tabular_model.perspective_hierarchies.find,
ObjectType.PERSPECTIVE_MEASURE: self._tabular_model.perspective_measures.find,
ObjectType.PERSPECTIVE_TABLE: self._tabular_model.perspective_tables.find,
ObjectType.QUERY_GROUP: self._tabular_model.query_groups.find,
ObjectType.RELATIONSHIP: self._tabular_model.relationships.find,
ObjectType.ROLE: self._tabular_model.roles.find,
ObjectType.ROLE_MEMBERSHIP: self._tabular_model.role_memberships.find,
ObjectType.TABLE: self._tabular_model.tables.find,
ObjectType.TABLE_PERMISSION: self._tabular_model.table_permissions.find,
ObjectType.VARIATION: self._tabular_model.variations.find,
}
if self.object_type not in mapper:
msg = f"Object Type {self.object_type} does not map to a known SSAS entity type."
raise TypeError(msg)
return mapper[self.object_type](self.object_id)