Package io.delta.kernel.internal.actions

Class Metadata

Object

io.delta.kernel.internal.actions.Metadata

public class Metadata
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final StructType	FULL_SCHEMA

Constructor Summary

Constructors

Constructor	Description
Metadata(String id, Optional<String> name, Optional<String> description, Format format, String schemaString, StructType schema, ArrayValue partitionColumns, Optional<Long> createdTime, MapValue configurationMapValue)

Method Summary

Modifier and Type	Method	Description
static Metadata	fromColumnVector(ColumnVector vector, int rowId, Engine engine)
Map<String,String>	getConfiguration()
MapValue	getConfigurationMapValue()
Optional<Long>	getCreatedTime()
StructType	getDataSchema()	The logical data schema which excludes partition columns
Optional<String>	getDescription()
Format	getFormat()
String	getId()
Optional<String>	getName()
Set<String>	getPartitionColNames()	Set of lowercase partition column names
ArrayValue	getPartitionColumns()
StructType	getSchema()
String	getSchemaString()
Row	toRow()	Encode as a Row object with the schema FULL_SCHEMA.

Methods inherited from class java.lang.Object

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

Field Details

FULL_SCHEMA

public static final StructType FULL_SCHEMA

Constructor Details

Metadata

public Metadata(String id,
 Optional<String> name,
 Optional<String> description,
 Format format,
 String schemaString,
 StructType schema,
 ArrayValue partitionColumns,
 Optional<Long> createdTime,
 MapValue configurationMapValue)

Method Details

fromColumnVector

public static Metadata fromColumnVector(ColumnVector vector,
 int rowId,
 Engine engine)

getSchemaString

public String getSchemaString()

getSchema

public StructType getSchema()

getPartitionColumns

public ArrayValue getPartitionColumns()

getPartitionColNames

public Set<String> getPartitionColNames()

Set of lowercase partition column names

getDataSchema

public StructType getDataSchema()

The logical data schema which excludes partition columns

getId

public String getId()

getName

public Optional<String> getName()

getDescription

public Optional<String> getDescription()

getFormat

public Format getFormat()

getCreatedTime

public Optional<Long> getCreatedTime()

getConfigurationMapValue

public MapValue getConfigurationMapValue()

getConfiguration

public Map<String,String> getConfiguration()

toRow

public Row toRow()

Encode as a Row object with the schema FULL_SCHEMA.

Returns:

Row object with the schema FULL_SCHEMA