Package io.delta.kernel.internal.clustering

Class ClusteringMetadataDomain

Object

io.delta.kernel.internal.metadatadomain.JsonMetadataDomain

io.delta.kernel.internal.clustering.ClusteringMetadataDomain

public final class ClusteringMetadataDomain
extends JsonMetadataDomain

Represents the metadata domain for clustering.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DOMAIN_NAME

Method Summary

Modifier and Type	Method	Description
static ClusteringMetadataDomain	fromClusteringColumns(List<Column> clusteringColumns)	Constructs a ClusteringMetadataDomain with the clustering columns.
static ClusteringMetadataDomain	fromJsonConfiguration(String json)	Creates an instance of ClusteringMetadataDomain from a JSON configuration string.
static Optional<ClusteringMetadataDomain>	fromSnapshot(SnapshotImpl snapshot)	Creates an optional instance of ClusteringMetadataDomain from a SnapshotImpl if present.
List<Column>	getClusteringColumns()
String	getDomainName()	Returns the name of the domain.

Methods inherited from class io.delta.kernel.internal.metadatadomain.JsonMetadataDomain

toDomainMetadata, toJsonConfiguration

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

DOMAIN_NAME

public static final String DOMAIN_NAME

See Also:

• Constant Field Values

Method Details

fromClusteringColumns

public static ClusteringMetadataDomain fromClusteringColumns(List<Column> clusteringColumns)

Constructs a ClusteringMetadataDomain with the clustering columns.

Parameters:

clusteringColumns - the columns used for clustering. If column mapping is enabled, use the physical name assigned; otherwise, use the logical column name.

fromJsonConfiguration

public static ClusteringMetadataDomain fromJsonConfiguration(String json)

Creates an instance of ClusteringMetadataDomain from a JSON configuration string.

Parameters:

json - the JSON configuration string

fromSnapshot

public static Optional<ClusteringMetadataDomain> fromSnapshot(SnapshotImpl snapshot)

Creates an optional instance of ClusteringMetadataDomain from a SnapshotImpl if present.

Parameters:

snapshot - the snapshot instance

getDomainName

public String getDomainName()

Description copied from class: JsonMetadataDomain

Returns the name of the domain.

Specified by:

getDomainName in class JsonMetadataDomain

Returns:

the domain name

getClusteringColumns

public List<Column> getClusteringColumns()