org.kitesdk.data
Class PartitionKey

java.lang.Object
  org.kitesdk.data.PartitionKey

@NotThreadSafe
public class PartitionKey
extends Object

A key for retrieving partitions from a Dataset.

A PartitionKey is an ordered sequence of values corresponding to the FieldPartitioners in a PartitionStrategy. You can obtain a PartitionKey using PartitionStrategy.partitionKey(Object...) or PartitionStrategy.partitionKeyForEntity(Object).

Implementations of PartitionKey are typically not thread-safe; that is, the behavior when accessing a single instance from multiple threads is undefined.

See Also:

PartitionStrategy, FieldPartitioner, Dataset

Method Summary

boolean	equals(Object o)
Object	get(int index) Return the value at the specified index in the key.
int	getLength() Return the number of values in the key.
List<Object>	getValues()
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

getValues

public List<Object> getValues()

get

public Object get(int index)

Return the value at the specified index in the key.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getLength

public int getLength()

Return the number of values in the key.

toString

public String toString()

Overrides:

toString in class Object