org.apache.ignite.internal.processors.cache.query

Class GridCacheTwoStepQuery

java.lang.Object

org.apache.ignite.internal.processors.cache.query.GridCacheTwoStepQuery

public class GridCacheTwoStepQuery
extends Object

Two step map-reduce style query.

Constructor Summary

Constructors

Constructor and Description
GridCacheTwoStepQuery(String originalSql, int paramsCnt, Set<QueryTable> tbls, GridCacheSqlQuery rdc, List<GridCacheSqlQuery> mapQrys, boolean skipMergeTbl, boolean explain, boolean distributedJoins, boolean replicatedOnly, PartitionResult derivedPartitions, List<Integer> cacheIds, boolean mvccEnabled, boolean locSplit, boolean treatReplicatedAsPartitioned)

Method Summary

Modifier and Type	Method and Description
List<Integer>	cacheIds()
PartitionResult	derivedPartitions()
boolean	distributedJoins() Check if distributed joins are enabled for this query.
boolean	explain()
boolean	hasCacheIds()
boolean	isLocal()
boolean	isLocalSplit()
boolean	isReplicatedOnly()
List<GridCacheSqlQuery>	mapQueries()
boolean	mvccEnabled()
String	originalSql()
int	parametersCount()
GridCacheSqlQuery	reduceQuery()
boolean	skipMergeTable()
Set<QueryTable>	tables()
int	tablesCount()
String	toString()
boolean	treatReplicatedAsPartitioned()

Methods inherited from class java.lang.Object

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

Constructor Detail

GridCacheTwoStepQuery

public GridCacheTwoStepQuery(String originalSql,
                             int paramsCnt,
                             Set<QueryTable> tbls,
                             GridCacheSqlQuery rdc,
                             List<GridCacheSqlQuery> mapQrys,
                             boolean skipMergeTbl,
                             boolean explain,
                             boolean distributedJoins,
                             boolean replicatedOnly,
                             PartitionResult derivedPartitions,
                             List<Integer> cacheIds,
                             boolean mvccEnabled,
                             boolean locSplit,
                             boolean treatReplicatedAsPartitioned)

Parameters:

originalSql - Original SQL.

paramsCnt - Parameters count.

tbls - Tables.

rdc - Reduce query.

mapQrys - Map query.

skipMergeTbl - Skip merge table flag.

explain - Explain flag.

distributedJoins - Distributed joins flag.

replicatedOnly - Replicated only flag.

derivedPartitions - Derived partitions.

cacheIds - Cache ids.

mvccEnabled - Mvcc flag.

locSplit - Local split flag.

treatReplicatedAsPartitioned - Treat replicated as partitioned flag.

Method Detail

distributedJoins

public boolean distributedJoins()

Check if distributed joins are enabled for this query.

Returns:

true If distributed joins enabled.

skipMergeTable

public boolean skipMergeTable()

Returns:

True if reduce query can skip merge table creation and get data directly from merge index.

explain

public boolean explain()

Returns:

If this is explain query.

isReplicatedOnly

public boolean isReplicatedOnly()

Returns:

true If all the map queries contain only replicated tables.

reduceQuery

public GridCacheSqlQuery reduceQuery()

Returns:

Reduce query.

mapQueries

public List<GridCacheSqlQuery> mapQueries()

Returns:

Map queries.

cacheIds

public List<Integer> cacheIds()

Returns:

Cache IDs.

hasCacheIds

public boolean hasCacheIds()

Returns:

Whether cache IDs exist.

originalSql

public String originalSql()

Returns:

Original query SQL.

isLocal

public boolean isLocal()

Returns:

True If query is local.

isLocalSplit

public boolean isLocalSplit()

Returns:

True if this is local query with split.

derivedPartitions

public PartitionResult derivedPartitions()

Returns:

Query derived partitions info.

tablesCount

public int tablesCount()

Returns:

Nuumber of tables.

tables

public Set<QueryTable> tables()

Returns:

Tables.

mvccEnabled

public boolean mvccEnabled()

Returns:

Mvcc flag.

parametersCount

public int parametersCount()

Returns:

Number of parameters

treatReplicatedAsPartitioned

public boolean treatReplicatedAsPartitioned()

Returns:

true if need to treat replicated as partitioned (for outer joins or for subqueries).

toString

public String toString()

Overrides:

toString in class Object