`tracdap.rt.metadata.data`¶

Module Contents¶

Classes¶

`DataDefinition`
`FieldSchema`
`PartKey`
`PartType`	Generic enumeration.
`SchemaDefinition`	A schema definition describes the schema of a dataset
`SchemaType`	Enumeration of the available types of data schema
`TableSchema`

class tracdap.rt.metadata.data.DataDefinition¶

class Delta¶

dataItem¶

dataItem

Type:: str

deltaIndex¶

deltaIndex

Type:: int

class Part¶

partKey¶

partKey

Type:: PartKey

snap¶

snap

Type:: DataDefinition.Snap

class Snap¶

deltas¶

deltas

Type:: List[DataDefinition.Delta]

snapIndex¶

snapIndex

Type:: int

parts¶

parts

Type:: Dict[str, DataDefinition.Part]

schema¶

schema

Type:: Optional[SchemaDefinition]

schemaId¶

schemaId

Type:: Optional[TagSelector]

storageId¶

storageId

Type:: TagSelector

class tracdap.rt.metadata.data.FieldSchema¶

businessKey¶

businessKey

Type:: bool

categorical¶

categorical

Type:: bool

fieldName¶

fieldName

Type:: str

fieldOrder¶

fieldOrder

Type:: int

fieldType¶

fieldType

Type:: BasicType

formatCode¶

formatCode

Type:: Optional[str]

label¶

label

Type:: str

class tracdap.rt.metadata.data.PartKey¶

opaqueKey¶

opaqueKey

Type:: str

partRangeMax¶

partRangeMax

Type:: Optional[Value]

partRangeMin¶

partRangeMin

Type:: Optional[Value]

partType¶

partType

Type:: PartType

partValues¶

partValues

Type:: List[Value]

class tracdap.rt.metadata.data.PartType¶

Bases: enum.Enum

Generic enumeration.

Derive from this class to define new enumerations.

PART_BY_RANGE = [1]¶

PART_BY_VALUE = [2]¶

PART_ROOT = [0]¶

class tracdap.rt.metadata.data.SchemaDefinition¶

A schema definition describes the schema of a dataset

Schema definitions can be top level objects (a type of object definition), in which case they can be referred to by multiple data definitions. Alternatively they can be embedded in a data definition to create datasets with one-off schemas.

A table schema describes the schema of a tabular data set. Other schema types may be added later, e.g. for matrices, tensors, curves, surfaces and structured datasets.

tracdap.rt.metadata.data¶

Module Contents¶

Classes¶

`tracdap.rt.metadata.data`¶