org.apache.ignite.internal.processors.query.h2.twostep

Class ReducePartitionMapper

java.lang.Object

org.apache.ignite.internal.processors.query.h2.twostep.ReducePartitionMapper

public class ReducePartitionMapper
extends Object

Reduce partition mapper.

Constructor Summary

Constructors

Constructor and Description
ReducePartitionMapper(GridKernalContext ctx, IgniteLogger log) Constructor.

Method Summary

Modifier and Type	Method and Description
GridCacheContext<?,?>	findFirstPartitioned(List<Integer> cacheIds)
ReducePartitionMapResult	nodesForPartitions(List<Integer> cacheIds, AffinityTopologyVersion topVer, int[] parts, boolean isReplicatedOnly) Evaluates nodes and nodes to partitions map given a list of cache ids, topology version and partitions.

Methods inherited from class java.lang.Object

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

Constructor Detail

ReducePartitionMapper

public ReducePartitionMapper(GridKernalContext ctx,
                             IgniteLogger log)

Constructor.

Parameters:

ctx - Kernal context.

Method Detail

nodesForPartitions

public ReducePartitionMapResult nodesForPartitions(List<Integer> cacheIds,
                                                   AffinityTopologyVersion topVer,
                                                   int[] parts,
                                                   boolean isReplicatedOnly)

Evaluates nodes and nodes to partitions map given a list of cache ids, topology version and partitions.

Parameters:

cacheIds - Cache ids.

topVer - Topology version.

parts - Partitions array.

isReplicatedOnly - Allow only replicated caches.

Returns:

Result.

findFirstPartitioned

public GridCacheContext<?,?> findFirstPartitioned(List<Integer> cacheIds)

Parameters:

cacheIds - Cache IDs.

Returns:

The first partitioned cache context.