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

Class GridReduceQueryExecutor

java.lang.Object

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

public class GridReduceQueryExecutor
extends Object

Reduce query executor.

Field Summary

Fields

Modifier and Type	Field	Description
static long	DFLT_RETRY_TIMEOUT	Default retry timeout.

Constructor Summary

Constructors

Constructor	Description
GridReduceQueryExecutor()

Method Summary

Modifier and Type	Method	Description
void	onDisconnected(IgniteFuture<?> reconnectFut)
void	onDmlResponse(ClusterNode node, GridH2DmlResponse msg)	Process response for DML request.
void	onFail(ClusterNode node, GridQueryFailResponse msg)
void	onNextPage(ClusterNode node, GridQueryNextPageResponse msg)
void	onNodeLeft(DiscoveryEvent evt)	Node left event handling method..
Iterator<List<?>>	query(long qryId, String schemaName, GridCacheTwoStepQuery qry, boolean keepBinary, boolean enforceJoinOrder, int timeoutMillis, GridQueryCancel cancel, Object[] params, int[] parts, boolean lazy, Boolean dataPageScanEnabled, int pageSize)
boolean	send(Collection<ClusterNode> nodes, Message msg, @Nullable IgniteBiClosure<ClusterNode,Message,Message> specialize, boolean runLocParallel)
void	start(GridKernalContext ctx, IgniteH2Indexing h2)
static int[]	toArray(org.h2.util.IntArray ints)
UpdateResult	update(String schemaName, List<Integer> cacheIds, String selectQry, Object[] params, boolean enforceJoinOrder, int pageSize, int timeoutMillis, int[] parts, boolean isReplicatedOnly, GridQueryCancel cancel)

Methods inherited from class java.lang.Object

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

Field Detail

DFLT_RETRY_TIMEOUT

public static final long DFLT_RETRY_TIMEOUT

Default retry timeout.

See Also:

Constant Field Values

Constructor Detail

GridReduceQueryExecutor

public GridReduceQueryExecutor()

Method Detail

start

public void start(GridKernalContext ctx,
                  IgniteH2Indexing h2)
           throws IgniteCheckedException

Parameters:

ctx - Context.

h2 - H2 Indexing.

Throws:

IgniteCheckedException - If failed.

onNodeLeft

public void onNodeLeft(DiscoveryEvent evt)

Node left event handling method..

Parameters:

evt - Discovery event.

onFail

public void onFail(ClusterNode node,
                   GridQueryFailResponse msg)

Parameters:

node - Node.

msg - Message.

onNextPage

public void onNextPage(ClusterNode node,
                       GridQueryNextPageResponse msg)

Parameters:

node - Node.

msg - Message.

query

public Iterator<List<?>> query(long qryId,
                               String schemaName,
                               GridCacheTwoStepQuery qry,
                               boolean keepBinary,
                               boolean enforceJoinOrder,
                               int timeoutMillis,
                               GridQueryCancel cancel,
                               Object[] params,
                               int[] parts,
                               boolean lazy,
                               Boolean dataPageScanEnabled,
                               int pageSize)

Parameters:

qryId - Query ID.

schemaName - Schema name.

qry - Query.

keepBinary - Keep binary.

enforceJoinOrder - Enforce join order of tables.

timeoutMillis - Timeout in milliseconds.

cancel - Query cancel.

params - Query parameters.

parts - Partitions.

lazy - Lazy execution flag.

dataPageScanEnabled - If data page scan is enabled.

pageSize - Page size.

Returns:

Rows iterator.

update

public UpdateResult update(String schemaName,
                           List<Integer> cacheIds,
                           String selectQry,
                           Object[] params,
                           boolean enforceJoinOrder,
                           int pageSize,
                           int timeoutMillis,
                           int[] parts,
                           boolean isReplicatedOnly,
                           GridQueryCancel cancel)

Parameters:

schemaName - Schema name.

cacheIds - Cache ids.

selectQry - Select query.

params - SQL parameters.

enforceJoinOrder - Enforce join order of tables.

pageSize - Page size.

timeoutMillis - Timeout.

parts - Partitions.

isReplicatedOnly - Whether query uses only replicated caches.

cancel - Cancel state.

Returns:

Update result, or null when some map node doesn't support distributed DML.

onDmlResponse

public void onDmlResponse(ClusterNode node,
                          GridH2DmlResponse msg)

Process response for DML request.

Parameters:

node - Node.

msg - Message.

send

public boolean send(Collection<ClusterNode> nodes,
                    Message msg,
                    @Nullable
                    @Nullable IgniteBiClosure<ClusterNode,Message,Message> specialize,
                    boolean runLocParallel)

Parameters:

nodes - Nodes.

msg - Message.

specialize - Optional closure to specialize message for each node.

runLocParallel - Run local handler in parallel thread.

Returns:

true If all messages sent successfully.

toArray

public static int[] toArray(org.h2.util.IntArray ints)

Parameters:

ints - Ints.

Returns:

Array.

onDisconnected

public void onDisconnected(IgniteFuture<?> reconnectFut)

Parameters:

reconnectFut - Reconnect future.