Package org.apache.ignite.internal.processors.query.h2.opt.join

Class DistributedJoinContext

java.lang.Object

org.apache.ignite.internal.processors.query.h2.opt.join.DistributedJoinContext

public class DistributedJoinContext
extends Object

Context for distributed joins.

Constructor Summary

Constructors

Constructor	Description
DistributedJoinContext(AffinityTopologyVersion topVer, Map<UUID,int[]> partsMap, UUID originNodeId, long qryId, int segment, int pageSize)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	cancel()	Mark as cleared.
<T> T	getSource(UUID ownerId, int segmentId, int batchLookupId)
<T> T	getStreams(int batchLookupId)
boolean	isCancelled()
int	nextBatchLookupId()
UUID	nodeForPartition(int p, GridCacheContext<?,?> cctx)
UUID	originNodeId()
int	pageSize()
Map<UUID,int[]>	partitionsMap()
void	putSource(UUID ownerId, int segmentId, int batchLookupId, Object src)
void	putStreams(int batchLookupId, Object streams)
long	queryId()
int	segment()
AffinityTopologyVersion	topologyVersion()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

DistributedJoinContext

public DistributedJoinContext(AffinityTopologyVersion topVer,
                              Map<UUID,int[]> partsMap,
                              UUID originNodeId,
                              long qryId,
                              int segment,
                              int pageSize)

Constructor.

Parameters:

topVer - Topology version.

partsMap - Partitions map.

originNodeId - ID of the node started the query.

qryId - Query ID.

segment - Segment.

pageSize - Pahe size.

Method Detail

topologyVersion

public AffinityTopologyVersion topologyVersion()

Returns:

Affinity topology version.

partitionsMap

public Map<UUID,int[]> partitionsMap()

Returns:

Partitions map.

originNodeId

public UUID originNodeId()

Returns:

Origin node ID.

queryId

public long queryId()

Returns:

Query request ID.

segment

public int segment()

Returns:

index segment ID.

pageSize

public int pageSize()

Returns:

Page size.

nodeForPartition

public UUID nodeForPartition(int p,
                             GridCacheContext<?,?> cctx)

Parameters:

p - Partition.

cctx - Cache context.

Returns:

Owning node ID.

putStreams

public void putStreams(int batchLookupId,
                       Object streams)

Parameters:

batchLookupId - Batch lookup ID.

streams - Range streams.

getStreams

public <T> T getStreams(int batchLookupId)

Parameters:

batchLookupId - Batch lookup ID.

Returns:

Range streams.

putSource

public void putSource(UUID ownerId,
                      int segmentId,
                      int batchLookupId,
                      Object src)

Parameters:

ownerId - Owner node ID.

segmentId - Index segment ID.

batchLookupId - Batch lookup ID.

src - Range source.

getSource

public <T> T getSource(UUID ownerId,
                       int segmentId,
                       int batchLookupId)

Parameters:

ownerId - Owner node ID.

segmentId - Index segment ID.

batchLookupId - Batch lookup ID.

Returns:

Range source.

nextBatchLookupId

public int nextBatchLookupId()

Returns:

Next batch ID.

isCancelled

public boolean isCancelled()

Returns:

Cleared flag.

cancel

public void cancel()

Mark as cleared.

toString

public String toString()

Overrides:

toString in class Object