org.apache.druid.frame.key

Class RowKey

java.lang.Object

org.apache.druid.frame.key.RowKey

public class RowKey
extends Object

Represents a specific sorting or hashing key. Instances of this class wrap a byte array in row-based frame format.

Method Summary

Modifier and Type	Method and Description
byte[]	array() Get the backing array for this key (not a copy).
static RowKey	empty()
boolean	equals(Object o)
int	estimatedObjectSizeBytes() Estimate number of bytes taken by the key array.
int	hashCode()
long	longHashCode()
String	toString()
static RowKey	wrap(byte[] row) Create a key from a byte array.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

wrap

public static RowKey wrap(byte[] row)

Create a key from a byte array. The array will be owned by the resulting key object.

empty

public static RowKey empty()

array

public byte[] array()

Get the backing array for this key (not a copy).

longHashCode

public long longHashCode()

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

estimatedObjectSizeBytes

public int estimatedObjectSizeBytes()

Estimate number of bytes taken by the key array. Only returns an estimate and does not account for platform or JVM specific implementation.