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

Class QueryContext

java.lang.Object

org.apache.ignite.internal.processors.query.h2.opt.QueryContext

All Implemented Interfaces:

org.apache.ignite.internal.processors.query.h2.H2QueryContext

public class QueryContext
extends Object
implements org.apache.ignite.internal.processors.query.h2.H2QueryContext

Thread local SQL query context which is intended to be accessible from everywhere.

Constructor Summary

Constructors

Constructor and Description
QueryContext(int segment, @Nullable IndexingQueryFilter filter, @Nullable DistributedJoinContext distributedJoinCtx, @Nullable MvccSnapshot mvccSnapshot, @Nullable PartitionReservation reservations, boolean loc) Constructor.

Method Summary

Modifier and Type	Method and Description
void	clearContext(boolean nodeStop)
@Nullable DistributedJoinContext	distributedJoinContext()
IndexingQueryFilter	filter()
boolean	local()
@Nullable MvccSnapshot	mvccSnapshot()
static QueryContext	parseContext(@Nullable IndexingQueryFilter filter, boolean local)
int	segment()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryContext

public QueryContext(int segment,
                    @Nullable
                    @Nullable IndexingQueryFilter filter,
                    @Nullable
                    @Nullable DistributedJoinContext distributedJoinCtx,
                    @Nullable
                    @Nullable MvccSnapshot mvccSnapshot,
                    @Nullable
                    @Nullable PartitionReservation reservations,
                    boolean loc)

Constructor.

Parameters:

segment - Index segment ID.

filter - Filter.

distributedJoinCtx - Distributed join context.

mvccSnapshot - MVCC snapshot.

loc - True for local queries, false for distributed ones.

Method Detail

parseContext

public static QueryContext parseContext(@Nullable
                                        @Nullable IndexingQueryFilter filter,
                                        boolean local)

Parameters:

filter - Filter.

local - Local query flag.

Returns:

Context for parsing.

mvccSnapshot

@Nullable
public @Nullable MvccSnapshot mvccSnapshot()

Returns:

Mvcc snapshot.

distributedJoinContext

@Nullable
public @Nullable DistributedJoinContext distributedJoinContext()

Returns:

Distributed join context.

segment

public int segment()

Returns:

Index segment ID.

clearContext

public void clearContext(boolean nodeStop)

Parameters:

nodeStop - Node is stopping.

filter

public IndexingQueryFilter filter()

Returns:

Filter.

local

public boolean local()

Returns:

True for local queries, false for distributed ones.

toString

public String toString()

Overrides:

toString in class Object