org.apache.ignite.internal.sql.optimizer.affinity

Class PartitionResult

java.lang.Object

org.apache.ignite.internal.sql.optimizer.affinity.PartitionResult

public class PartitionResult
extends Object

Partition extraction result.

Constructor Summary

Constructors

Constructor and Description
PartitionResult(PartitionNode tree, AffinityTopologyVersion topVer, String cacheName, int partsCnt) Constructor.
PartitionResult(PartitionNode tree, PartitionTableAffinityDescriptor aff, AffinityTopologyVersion topVer) Constructor.

Method Summary

Modifier and Type	Method and Description
PartitionTableAffinityDescriptor	affinity()
String	cacheName()
static int[]	calculatePartitions(int[] explicitParts, PartitionResult derivedParts, Object[] args) Calculate partitions for the query.
boolean	isClientPartitionAwarenessApplicable()
int	partitionsCount()
AffinityTopologyVersion	topologyVersion()
String	toString()
PartitionNode	tree() Tree.

Methods inherited from class java.lang.Object

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

Constructor Detail

PartitionResult

public PartitionResult(PartitionNode tree,
                       PartitionTableAffinityDescriptor aff,
                       AffinityTopologyVersion topVer)

Constructor.

Parameters:

tree - Tree.

aff - Affinity function.

PartitionResult

public PartitionResult(PartitionNode tree,
                       AffinityTopologyVersion topVer,
                       String cacheName,
                       int partsCnt)

Constructor.

Parameters:

tree - Tree.

topVer - Affinity topology version.

cacheName - Cache name.

partsCnt - Partitions count.

Method Detail

tree

public PartitionNode tree()

Tree.

affinity

public PartitionTableAffinityDescriptor affinity()

Returns:

Affinity function.

calculatePartitions

public static int[] calculatePartitions(int[] explicitParts,
                                        PartitionResult derivedParts,
                                        Object[] args)

Calculate partitions for the query.

Parameters:

explicitParts - Explicit partitions provided in SqlFieldsQuery.partitions property.

derivedParts - Derived partitions found during partition pruning.

args - Arguments.

Returns:

Calculated partitions or null if failed to calculate and there should be a broadcast.

topologyVersion

public AffinityTopologyVersion topologyVersion()

Returns:

Affinity topology version. This method is intended to be used within the Jdbc thin client.

cacheName

public String cacheName()

Returns:

Cache name. This method is intended to be used within the Jdbc thin client.

partitionsCount

public int partitionsCount()

Returns:

Partitions count. This method is intended to be used within the Jdbc thin client.

isClientPartitionAwarenessApplicable

public boolean isClientPartitionAwarenessApplicable()

Returns:

True if applicable to jdbc thin client side partition awareness: 1. Rendezvous affinity function without map filters was used; 2. Partition result tree neither PartitoinAllNode nor PartitionNoneNode;

toString

public String toString()

Overrides:

toString in class Object