org.apache.ignite.internal.processors.query

Class NoOpQueryEngine

java.lang.Object

org.apache.ignite.internal.processors.GridProcessorAdapter

org.apache.ignite.internal.processors.query.NoOpQueryEngine

All Implemented Interfaces:

GridComponent, GridProcessor, QueryEngine

public class NoOpQueryEngine
extends GridProcessorAdapter
implements QueryEngine

No op implementation.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.ignite.internal.GridComponent

GridComponent.DiscoveryDataExchangeType

Field Summary

Fields inherited from class org.apache.ignite.internal.processors.GridProcessorAdapter

ctx, diagnosticLog, log

Constructor Summary

Constructors

Constructor and Description
NoOpQueryEngine(GridKernalContext ctx)

Method Summary

Modifier and Type	Method and Description
List<List<GridQueryFieldMetadata>>	parameterMetaData(@Nullable QueryContext ctx, String schemaName, String qry)
List<FieldsQueryCursor<List<?>>>	query(@Nullable QueryContext ctx, String schemaName, String query, Object... params)
List<FieldsQueryCursor<List<?>>>	queryBatched(@Nullable QueryContext ctx, String schemaName, String qry, List<Object[]> batchedParams)
List<List<GridQueryFieldMetadata>>	resultSetMetaData(@Nullable QueryContext ctx, String schemaName, String qry)
Collection<? extends RunningQuery>	runningQueries()
RunningQuery	runningQuery(UUID id)

Methods inherited from class org.apache.ignite.internal.processors.GridProcessorAdapter

assertParameter, collectGridNodeData, collectJoiningNodeData, discoveryDataType, onDisconnected, onGridDataReceived, onJoiningNodeDataReceived, onKernalStart, onKernalStop, onReconnected, printMemoryStats, start, stop, toString, validateNode, validateNode

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.GridComponent

collectGridNodeData, collectJoiningNodeData, discoveryDataType, onDisconnected, onGridDataReceived, onJoiningNodeDataReceived, onKernalStart, onKernalStop, onReconnected, printMemoryStats, start, stop, validateNode, validateNode

Constructor Detail

NoOpQueryEngine

public NoOpQueryEngine(GridKernalContext ctx)

Parameters:

ctx - Kernal context.

Method Detail

query

public List<FieldsQueryCursor<List<?>>> query(@Nullable
                                              @Nullable QueryContext ctx,
                                              String schemaName,
                                              String query,
                                              Object... params)
                                       throws IgniteSQLException

Specified by:

query in interface QueryEngine

Parameters:

ctx - Query context, may be null.

schemaName - Schema name.

query - Query.

params - Optional query parameters.

Returns:

List of query cursors. Size of list depends on number of distinct queries in qry.

Throws:

IgniteSQLException - If failed.

parameterMetaData

public List<List<GridQueryFieldMetadata>> parameterMetaData(@Nullable
                                                            @Nullable QueryContext ctx,
                                                            String schemaName,
                                                            String qry)
                                                     throws IgniteSQLException

Specified by:

parameterMetaData in interface QueryEngine

Parameters:

ctx - Query context, may be null.

schemaName - Schema name.

qry - Query.

Returns:

List of queries' parameters metadata. Size of list depends on number of distinct queries in qry.

Throws:

IgniteSQLException - If failed.

resultSetMetaData

public List<List<GridQueryFieldMetadata>> resultSetMetaData(@Nullable
                                                            @Nullable QueryContext ctx,
                                                            String schemaName,
                                                            String qry)
                                                     throws IgniteSQLException

Specified by:

resultSetMetaData in interface QueryEngine

Parameters:

ctx - Query context, may be null.

schemaName - Schema name.

qry - Query.

Returns:

List of queries' result sets metadata. Size of list depends on number of distinct queries in qry.

Throws:

IgniteSQLException - If failed.

queryBatched

public List<FieldsQueryCursor<List<?>>> queryBatched(@Nullable
                                                     @Nullable QueryContext ctx,
                                                     String schemaName,
                                                     String qry,
                                                     List<Object[]> batchedParams)
                                              throws IgniteSQLException

Specified by:

queryBatched in interface QueryEngine

Parameters:

ctx - Query context, may be null.

schemaName - Schema name.

qry - Query.

batchedParams - Optional query parameters.

Returns:

List of query cursors. Size of list equals to size of batchedParams.

Throws:

IgniteSQLException - If failed.

runningQueries

public Collection<? extends RunningQuery> runningQueries()

Specified by:

runningQueries in interface QueryEngine

runningQuery

public RunningQuery runningQuery(UUID id)

Specified by:

runningQuery in interface QueryEngine