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 and Description
static StructType	FULL_SCHEMA

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
java.util.Map<String,String>	filterOutUnchangedProperties(java.util.Map<String,String> newProperties) Filter out the key-value pair matches exactly with the old properties.
static Metadata	fromColumnVector(ColumnVector vector, int rowId)
java.util.Map<String,String>	getConfiguration()
MapValue	getConfigurationMapValue()
java.util.Optional<Long>	getCreatedTime()
StructType	getDataSchema() The logical data schema which excludes partition columns
java.util.Optional<String>	getDescription()
Format	getFormat()
String	getId()
java.util.Optional<String>	getName()
java.util.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.
String	toString()
Metadata	withNewConfiguration(java.util.Map<String,String> configuration)
Metadata	withNewSchema(StructType schema)

Methods inherited from class Object

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

Field Detail

FULL_SCHEMA

public static final StructType FULL_SCHEMA

Constructor Detail

Metadata

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

Method Detail

fromColumnVector

public static Metadata fromColumnVector(ColumnVector vector,
                                        int rowId)

withNewConfiguration

public Metadata withNewConfiguration(java.util.Map<String,String> configuration)

withNewSchema

public Metadata withNewSchema(StructType schema)

toString

public String toString()

Overrides:

toString in class Object

getSchemaString

public String getSchemaString()

getSchema

public StructType getSchema()

getPartitionColumns

public ArrayValue getPartitionColumns()

getPartitionColNames

public java.util.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 java.util.Optional<String> getName()

getDescription

public java.util.Optional<String> getDescription()

getFormat

public Format getFormat()

getCreatedTime

public java.util.Optional<Long> getCreatedTime()

getConfigurationMapValue

public MapValue getConfigurationMapValue()

getConfiguration

public java.util.Map<String,String> getConfiguration()

filterOutUnchangedProperties

public java.util.Map<String,String> filterOutUnchangedProperties(java.util.Map<String,String> newProperties)

Filter out the key-value pair matches exactly with the old properties.

Parameters:

newProperties - the new properties to be filtered

Returns:

the filtered properties

toRow

public Row toRow()

Encode as a Row object with the schema FULL_SCHEMA.

Returns:

Row object with the schema FULL_SCHEMA