org.janusgraph.hadoop

Class MapReduceIndexManagement

java.lang.Object

org.janusgraph.hadoop.MapReduceIndexManagement

public class MapReduceIndexManagement
extends Object

Constructor Summary

Constructors

Constructor and Description
MapReduceIndexManagement(JanusGraph g)

Method Summary

Modifier and Type	Method and Description
ScanJobFuture	updateIndex(Index index, SchemaAction updateAction)
ScanJobFuture	updateIndex(Index index, SchemaAction updateAction, org.apache.hadoop.conf.Configuration hadoopConf) Updates the provided index according to the given SchemaAction.

Methods inherited from class java.lang.Object

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

Constructor Detail

MapReduceIndexManagement

public MapReduceIndexManagement(JanusGraph g)

Method Detail

updateIndex

public ScanJobFuture updateIndex(Index index,
                                 SchemaAction updateAction)
                          throws BackendException

Throws:

BackendException

updateIndex

public ScanJobFuture updateIndex(Index index,
                                 SchemaAction updateAction,
                                 org.apache.hadoop.conf.Configuration hadoopConf)
                          throws BackendException

Updates the provided index according to the given SchemaAction. Only SchemaAction.REINDEX and SchemaAction.DISCARD_INDEX are supported.

Parameters:

index - the index to process

updateAction - either REINDEX or DISCARD_INDEX

hadoopConf -

Returns:

a future that returns immediately; this method blocks until the Hadoop MapReduce job completes

Throws:

BackendException