org.apache.spark.sql.execution.joins

Class UniqueKeyHashedRelation

Object

org.apache.spark.sql.execution.joins.UniqueKeyHashedRelation

All Implemented Interfaces:

java.io.Serializable, HashedRelation

public final class UniqueKeyHashedRelation
extends Object
implements HashedRelation, scala.Serializable

A specialized HashedRelation that maps key into a single value. This implementation assumes the key is unique.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
UniqueKeyHashedRelation(java.util.HashMap<org.apache.spark.sql.catalyst.expressions.Row,org.apache.spark.sql.catalyst.expressions.Row> hashTable)

Method Summary

Methods

Modifier and Type	Method and Description
org.apache.spark.util.collection.CompactBuffer<org.apache.spark.sql.catalyst.expressions.Row>	get(org.apache.spark.sql.catalyst.expressions.Row key)
org.apache.spark.sql.catalyst.expressions.Row	getValue(org.apache.spark.sql.catalyst.expressions.Row key)

Methods inherited from class Object

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

Constructor Detail

UniqueKeyHashedRelation

public UniqueKeyHashedRelation(java.util.HashMap<org.apache.spark.sql.catalyst.expressions.Row,org.apache.spark.sql.catalyst.expressions.Row> hashTable)

Method Detail

get

public org.apache.spark.util.collection.CompactBuffer<org.apache.spark.sql.catalyst.expressions.Row> get(org.apache.spark.sql.catalyst.expressions.Row key)

Specified by:

get in interface HashedRelation

getValue

public org.apache.spark.sql.catalyst.expressions.Row getValue(org.apache.spark.sql.catalyst.expressions.Row key)