org.apache.lens.rdd

Class LensRDDClient.LensRDDResult

java.lang.Object

org.apache.lens.rdd.LensRDDClient.LensRDDResult

All Implemented Interfaces:

Serializable

Enclosing class:

LensRDDClient

public static class LensRDDClient.LensRDDResult
extends Object
implements Serializable

Container object to store the RDD and corresponding Lens query handle.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
LensRDDResult() Instantiates a new lens rdd result.
LensRDDResult(org.apache.spark.rdd.RDD<List<Object>> rdd, QueryHandle lensQuery, String tempTableName) Instantiates a new lens rdd result.

Method Summary

Modifier and Type	Method and Description
void	deleteTempTable() Delete temp table.
QueryHandle	getLensQuery()
org.apache.spark.rdd.RDD<List<Object>>	getRDD()
String	getTempTableName()
org.apache.spark.rdd.RDD<List<Object>>	recreateRDD(org.apache.spark.api.java.JavaSparkContext sparkContext) Recreate RDD.

Methods inherited from class java.lang.Object

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

Constructor Detail

LensRDDResult

public LensRDDResult(org.apache.spark.rdd.RDD<List<Object>> rdd,
                     QueryHandle lensQuery,
                     String tempTableName)

Instantiates a new lens rdd result.

Parameters:

rdd - the rdd

lensQuery - the lens query

tempTableName - the temp table name

LensRDDResult

public LensRDDResult()

Instantiates a new lens rdd result.

Method Detail

getLensQuery

public QueryHandle getLensQuery()

getRDD

public org.apache.spark.rdd.RDD<List<Object>> getRDD()

recreateRDD

public org.apache.spark.rdd.RDD<List<Object>> recreateRDD(org.apache.spark.api.java.JavaSparkContext sparkContext)
                                                   throws LensException

Recreate RDD. This will work if the result object was saved. As long as the metastore and corresponding HDFS directory is available result object should be able to recreate an RDD.

Parameters:

sparkContext - the spark context

Returns:

the rdd

Throws:

LensException - the lens exception

getTempTableName

public String getTempTableName()

deleteTempTable

public void deleteTempTable()
                     throws LensException

Delete temp table. This should be done to release underlying temp table.

Throws:

LensException - the lens exception