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

Class PartitionGroupNode

java.lang.Object

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

All Implemented Interfaces:

PartitionNode

public class PartitionGroupNode
extends Object
implements PartitionNode

Flat group of partitions.

Constructor Summary

Constructors

Constructor	Description
PartitionGroupNode(Set<PartitionSingleNode> siblings)	Constructor.

Method Summary

Modifier and Type	Method	Description
Collection<Integer>	apply(PartitionClientContext ctx, Object... args)	Get partitions.
String	cacheName()
boolean	constantsOnly()
boolean	contains(PartitionSingleNode val)	Check if value exists.
boolean	containsExact(Collection<PartitionSingleNode> siblings)	Check if current group node contains exactly the same set of siblings.
int	joinGroup()
Set<PartitionSingleNode>	siblings()
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.ignite.internal.sql.optimizer.affinity.PartitionNode

optimize

Constructor Detail

PartitionGroupNode

public PartitionGroupNode(Set<PartitionSingleNode> siblings)

Constructor.

Parameters:

siblings - Partitions.

Method Detail

apply

public Collection<Integer> apply(PartitionClientContext ctx,
                                 Object... args)
                          throws IgniteCheckedException

Get partitions.

Specified by:

apply in interface PartitionNode

Parameters:

ctx - Thin client context (optional).

args - Query arguments.

Returns:

Partitions.

Throws:

IgniteCheckedException - If failed.

joinGroup

public int joinGroup()

Specified by:

joinGroup in interface PartitionNode

Returns:

Join group for the given node.

siblings

public Set<PartitionSingleNode> siblings()

Returns:

Siblings

contains

public boolean contains(PartitionSingleNode val)

Check if value exists. Should be called only on non-mixed node.

Parameters:

val - Value

Returns:

True if exists.

containsExact

public boolean containsExact(Collection<PartitionSingleNode> siblings)

Check if current group node contains exactly the same set of siblings.

Parameters:

siblings - Siblings to check.

Returns:

True if both sets of siblings contain the same elements.

constantsOnly

public boolean constantsOnly()

Returns:

True if the group contain only constants.

toString

public String toString()

Overrides:

toString in class Object

cacheName

public String cacheName()

Specified by:

cacheName in interface PartitionNode

Returns:

First met cache name of an any PartitionSingleNode during PartitionNode tree traversal. This method is intended to be used within the Jdbc thin client.