org.apache.hudi.common.util.hash

Class ColumnIndexID

java.lang.Object

org.apache.hudi.common.util.hash.HoodieIndexID

org.apache.hudi.common.util.hash.ColumnIndexID

All Implemented Interfaces:

Serializable

public class ColumnIndexID
extends HoodieIndexID

A stateful Hoodie object ID representing any table column.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hudi.common.util.hash.HoodieIndexID

HoodieIndexID.Type

Field Summary

Fields

Modifier and Type	Field and Description
static HashID.Size	ID_COLUMN_HASH_SIZE

Constructor Summary

Constructors

Constructor and Description
ColumnIndexID(String column)

Method Summary

Modifier and Type	Method and Description
String	asBase64EncodedString() Get the Base64 encoded version of the ID.
byte[]	asBytes() Get this ID as a byte array.
int	bits() Get the number of bits representing this ID in memory.
String	getName() Get the resource name for which this index id is generated.
protected HoodieIndexID.Type	getType() Get the ID type.
String	toString() Get the String version of this ID.

Methods inherited from class org.apache.hudi.common.util.hash.HoodieIndexID

isColumnID, isFileID, isPartition

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

ID_COLUMN_HASH_SIZE

public static final HashID.Size ID_COLUMN_HASH_SIZE

Constructor Detail

ColumnIndexID

public ColumnIndexID(String column)

Method Detail

getName

public String getName()

Description copied from class: HoodieIndexID

Get the resource name for which this index id is generated.

Specified by:

getName in class HoodieIndexID

Returns:

The resource name

bits

public int bits()

Description copied from class: HoodieIndexID

Get the number of bits representing this ID in memory.

Note: Will be in multiples of 8 only.

Specified by:

bits in class HoodieIndexID

Returns:

The number of bits in this ID

asBytes

public byte[] asBytes()

Description copied from class: HoodieIndexID

Get this ID as a byte array.

Specified by:

asBytes in class HoodieIndexID

Returns:

A byte array representing this ID

asBase64EncodedString

public String asBase64EncodedString()

Description copied from class: HoodieIndexID

Get the Base64 encoded version of the ID.

Overrides:

asBase64EncodedString in class HoodieIndexID

toString

public String toString()

Description copied from class: HoodieIndexID

Get the String version of this ID.

Specified by:

toString in class HoodieIndexID

Returns:

String version of this ID.

getType

protected HoodieIndexID.Type getType()

Description copied from class: HoodieIndexID

Get the ID type.

Specified by:

getType in class HoodieIndexID

Returns:

This ID type