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

Class GridCacheQueryManager<K,V>

java.lang.Object

org.apache.ignite.internal.processors.cache.GridCacheManagerAdapter<K,V>

org.apache.ignite.internal.processors.cache.query.GridCacheQueryManager<K,V>

All Implemented Interfaces:

GridCacheManager<K,V>

Direct Known Subclasses:

GridCacheDistributedQueryManager, GridCacheLocalQueryManager

public abstract class GridCacheQueryManager<K,V>
extends GridCacheManagerAdapter<K,V>

Query and index manager.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	GridCacheQueryManager.CacheSqlIndexMetadata Cache metadata index.
static class	GridCacheQueryManager.CacheSqlMetadata Cache metadata.
static class	GridCacheQueryManager.QueryResult<K,V>
class	GridCacheQueryManager.RequestFutureMap The map prevents put to the map in case the specified request has been removed previously.
static class	GridCacheQueryManager.ScanQueryIterator<K,V>

Field Summary

Fields inherited from class org.apache.ignite.internal.processors.cache.GridCacheManagerAdapter

cctx, log, starting

Constructor Summary

Constructors

Constructor and Description
GridCacheQueryManager()

Method Summary

Modifier and Type	Method and Description
String	cacheName() FOR TESTING ONLY
void	collectMetrics(GridCacheQueryType qryType, String qry, long startTime, long duration, boolean failed)
CacheQuery<Map.Entry<K,V>>	createFullTextQuery(String clsName, String search, int limit, boolean keepBinary) Creates user's full text query, queried class, and query clause.
<T,R> CacheQuery<R>	createScanQuery(@Nullable IgniteBiPredicate<K,V> filter, @Nullable IgniteClosure<T,R> trans, @Nullable Integer part, boolean keepBinary, boolean forceLocal, Boolean dataPageScanEnabled) Creates user's predicate based scan query.
<R> CacheQuery<R>	createScanQuery(@Nullable IgniteBiPredicate<K,V> filter, @Nullable Integer part, boolean keepBinary, Boolean dataPageScanEnabled) Creates user's predicate based scan query.
<R> CacheQuery<R>	createSpiQuery(boolean keepBinary) Query for IndexingSpi.
Collection<GridCacheQueryDetailMetricsAdapter>	detailMetrics() Gets cache queries detailed metrics.
void	enable() Enable query manager.
boolean	enabled()
void	evictDetailMetrics() Evict detail metrics.
abstract void	loadPage(long id, GridCacheQueryAdapter<?> qry, Collection<ClusterNode> nodes, boolean all) Loads page.
GridConcurrentHashSet<GridCacheQueryManager.ScanQueryIterator>	localQueryIterators()
QueryMetrics	metrics() Gets cache queries metrics.
protected abstract boolean	onFieldsPageReady(boolean loc, org.apache.ignite.internal.processors.cache.query.GridCacheQueryInfo qryInfo, @Nullable List<GridQueryFieldMetadata> metaData, @Nullable Collection<?> entities, @Nullable Collection<?> data, boolean finished, @Nullable Throwable e)
protected void	onKernalStop0(boolean cancel)
protected abstract boolean	onPageReady(boolean loc, org.apache.ignite.internal.processors.cache.query.GridCacheQueryInfo qryInfo, @Nullable Collection<?> data, boolean finished, @Nullable Throwable e) Called when data for page is ready.
void	printMemoryStats() Prints memory statistics for debugging purposes.
abstract CacheQueryFuture<?>	queryDistributed(GridCacheQueryBean qry, Collection<ClusterNode> nodes) Executes distributed query.
abstract CacheQueryFuture<?>	queryFieldsDistributed(GridCacheQueryBean qry, Collection<ClusterNode> nodes) Executes distributed fields query.
abstract CacheQueryFuture<?>	queryFieldsLocal(GridCacheQueryBean qry) Executes distributed fields query.
ConcurrentMap<UUID,GridCacheQueryManager.RequestFutureMap>	queryIterators()
AffinityTopologyVersion	queryTopologyVersion()
void	remove(KeyCacheObject key, @Nullable CacheDataRow prevRow)
protected void	removeFieldsQueryResult(@Nullable UUID sndId, long reqId)
void	removeQueryResult(@Nullable UUID sndId, long reqId)
void	resetDetailMetrics() Resets detail metrics.
void	resetMetrics() Resets metrics.
protected void	runFieldsQuery(org.apache.ignite.internal.processors.cache.query.GridCacheQueryInfo qryInfo) Processes fields query request.
protected void	runQuery(org.apache.ignite.internal.processors.cache.query.GridCacheQueryInfo qryInfo) Processes cache query request.
abstract GridCloseableIterator	scanQueryDistributed(GridCacheQueryAdapter qry, Collection<ClusterNode> nodes) Executes distributed SCAN query.
protected GridCloseableIterator	scanQueryLocal(GridCacheQueryAdapter qry, boolean updateStatistics) Process local scan query.
Collection<GridCacheSqlMetadata>	sqlMetadata() Gets SQL metadata.
Collection<GridCacheSqlMetadata>	sqlMetadataV2() Gets SQL metadata with not nulls fields.
void	start0()
void	stop0(boolean cancel, boolean destroy) Stops query manager.
void	store(CacheDataRow newRow, @Nullable CacheDataRow prevRow, boolean prevRowAvailable)

Methods inherited from class org.apache.ignite.internal.processors.cache.GridCacheManagerAdapter

context, kernalStartInfo, kernalStopInfo, log, onDisconnected, onKernalStart, onKernalStart0, onKernalStop, start, startInfo, stop, stopInfo, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

GridCacheQueryManager

public GridCacheQueryManager()

Method Detail

start0

public void start0()
            throws IgniteCheckedException

Overrides:

start0 in class GridCacheManagerAdapter<K,V>

Throws:

IgniteCheckedException - If failed.

enabled

public boolean enabled()

Returns:

True if indexing is enabled for cache.

enable

public void enable()

Enable query manager.

onKernalStop0

protected void onKernalStop0(boolean cancel)

Overrides:

onKernalStop0 in class GridCacheManagerAdapter<K,V>

Parameters:

cancel - Cancel flag.

stop0

public final void stop0(boolean cancel,
                        boolean destroy)

Stops query manager.

Overrides:

stop0 in class GridCacheManagerAdapter<K,V>

Parameters:

cancel - Cancel queries.

destroy - Cache destroy flag..

store

public void store(CacheDataRow newRow,
                  @Nullable
                  @Nullable CacheDataRow prevRow,
                  boolean prevRowAvailable)
           throws IgniteCheckedException

Parameters:

newRow - New row.

prevRow - Previous row.

prevRowAvailable - Whether previous row is available.

Throws:

IgniteCheckedException - In case of error.

remove

public void remove(KeyCacheObject key,
                   @Nullable
                   @Nullable CacheDataRow prevRow)
            throws IgniteCheckedException

Parameters:

key - Key.

prevRow - Previous row.

Throws:

IgniteCheckedException - Thrown in case of any errors.

queryDistributed

public abstract CacheQueryFuture<?> queryDistributed(GridCacheQueryBean qry,
                                                     Collection<ClusterNode> nodes)

Executes distributed query.

Parameters:

qry - Query.

nodes - Nodes.

Returns:

Query future.

scanQueryDistributed

public abstract GridCloseableIterator scanQueryDistributed(GridCacheQueryAdapter qry,
                                                           Collection<ClusterNode> nodes)
                                                    throws IgniteCheckedException

Executes distributed SCAN query.

Parameters:

qry - Query.

nodes - Nodes.

Returns:

Iterator.

Throws:

IgniteCheckedException - If failed.

loadPage

public abstract void loadPage(long id,
                              GridCacheQueryAdapter<?> qry,
                              Collection<ClusterNode> nodes,
                              boolean all)

Loads page.

Parameters:

id - Query ID.

qry - Query.

nodes - Nodes.

all - Whether to load all pages.

queryFieldsLocal

public abstract CacheQueryFuture<?> queryFieldsLocal(GridCacheQueryBean qry)

Executes distributed fields query.

Parameters:

qry - Query.

Returns:

Query future.

queryFieldsDistributed

public abstract CacheQueryFuture<?> queryFieldsDistributed(GridCacheQueryBean qry,
                                                           Collection<ClusterNode> nodes)

Executes distributed fields query.

Parameters:

qry - Query.

nodes - Nodes.

Returns:

Query future.

runFieldsQuery

protected void runFieldsQuery(org.apache.ignite.internal.processors.cache.query.GridCacheQueryInfo qryInfo)

Processes fields query request.

Parameters:

qryInfo - Query info.

runQuery

protected void runQuery(org.apache.ignite.internal.processors.cache.query.GridCacheQueryInfo qryInfo)

Processes cache query request.

Parameters:

qryInfo - Query info.

scanQueryLocal

protected GridCloseableIterator scanQueryLocal(GridCacheQueryAdapter qry,
                                               boolean updateStatistics)
                                        throws IgniteCheckedException

Process local scan query.

Parameters:

qry - Query.

updateStatistics - Update statistics flag.

Throws:

IgniteCheckedException

removeQueryResult

public void removeQueryResult(@Nullable
                              @Nullable UUID sndId,
                              long reqId)

Parameters:

sndId - Sender node ID.

reqId - Request ID.

removeFieldsQueryResult

protected void removeFieldsQueryResult(@Nullable
                                       @Nullable UUID sndId,
                                       long reqId)

Parameters:

sndId - Sender node ID.

reqId - Request ID.

onPageReady

protected abstract boolean onPageReady(boolean loc,
                                       org.apache.ignite.internal.processors.cache.query.GridCacheQueryInfo qryInfo,
                                       @Nullable
                                       @Nullable Collection<?> data,
                                       boolean finished,
                                       @Nullable
                                       @Nullable Throwable e)

Called when data for page is ready.

Parameters:

loc - Local query or not.

qryInfo - Query info.

data - Result data.

finished - Last page or not.

e - Exception in case of error.

Returns:

true if page was processed right.

onFieldsPageReady

protected abstract boolean onFieldsPageReady(boolean loc,
                                             org.apache.ignite.internal.processors.cache.query.GridCacheQueryInfo qryInfo,
                                             @Nullable
                                             @Nullable List<GridQueryFieldMetadata> metaData,
                                             @Nullable
                                             @Nullable Collection<?> entities,
                                             @Nullable
                                             @Nullable Collection<?> data,
                                             boolean finished,
                                             @Nullable
                                             @Nullable Throwable e)

Parameters:

loc - Local query or not.

qryInfo - Query info.

metaData - Meta data.

entities - Indexing entities.

data - Data.

finished - Last page or not.

e - Exception in case of error.

Returns:

true if page was processed right.

metrics

public QueryMetrics metrics()

Gets cache queries metrics.

Returns:

Cache queries metrics.

detailMetrics

public Collection<GridCacheQueryDetailMetricsAdapter> detailMetrics()

Gets cache queries detailed metrics. Detail metrics could be enabled by setting non-zero value via CacheConfiguration.setQueryDetailMetricsSize(int)

Returns:

Cache queries metrics aggregated by query type and query text.

evictDetailMetrics

public void evictDetailMetrics()

Evict detail metrics.

resetMetrics

public void resetMetrics()

Resets metrics.

resetDetailMetrics

public void resetDetailMetrics()

Resets detail metrics.

collectMetrics

public void collectMetrics(GridCacheQueryType qryType,
                           String qry,
                           long startTime,
                           long duration,
                           boolean failed)

Parameters:

qryType - Query type.

qry - Query description.

startTime - Query start size.

duration - Execution duration.

failed - True if query execution failed.

sqlMetadata

public Collection<GridCacheSqlMetadata> sqlMetadata()
                                             throws IgniteCheckedException

Gets SQL metadata.

Returns:

SQL metadata.

Throws:

IgniteCheckedException - In case of error.

sqlMetadataV2

public Collection<GridCacheSqlMetadata> sqlMetadataV2()
                                               throws IgniteCheckedException

Gets SQL metadata with not nulls fields.

Returns:

SQL metadata.

Throws:

IgniteCheckedException - In case of error.

queryTopologyVersion

public AffinityTopologyVersion queryTopologyVersion()

Returns:

Topology version for query requests.

printMemoryStats

public void printMemoryStats()

Prints memory statistics for debugging purposes.

Specified by:

printMemoryStats in interface GridCacheManager<K,V>

Overrides:

printMemoryStats in class GridCacheManagerAdapter<K,V>

cacheName

public String cacheName()

FOR TESTING ONLY

Returns:

Cache name for this query manager.

createSpiQuery

public <R> CacheQuery<R> createSpiQuery(boolean keepBinary)

Query for IndexingSpi.

Parameters:

keepBinary - Keep binary flag.

Returns:

Query.

createScanQuery

public <R> CacheQuery<R> createScanQuery(@Nullable
                                         @Nullable IgniteBiPredicate<K,V> filter,
                                         @Nullable
                                         @Nullable Integer part,
                                         boolean keepBinary,
                                         Boolean dataPageScanEnabled)

Creates user's predicate based scan query.

Parameters:

filter - Scan filter.

part - Partition.

keepBinary - Keep binary flag.

dataPageScanEnabled - Flag to enable data page scan.

Returns:

Created query.

createScanQuery

public <T,R> CacheQuery<R> createScanQuery(@Nullable
                                           @Nullable IgniteBiPredicate<K,V> filter,
                                           @Nullable
                                           @Nullable IgniteClosure<T,R> trans,
                                           @Nullable
                                           @Nullable Integer part,
                                           boolean keepBinary,
                                           boolean forceLocal,
                                           Boolean dataPageScanEnabled)

Creates user's predicate based scan query.

Parameters:

filter - Scan filter.

trans - Transformer.

part - Partition.

keepBinary - Keep binary flag.

forceLocal - Flag to force local scan.

dataPageScanEnabled - Flag to enable data page scan.

Returns:

Created query.

createFullTextQuery

public CacheQuery<Map.Entry<K,V>> createFullTextQuery(String clsName,
                                                      String search,
                                                      int limit,
                                                      boolean keepBinary)

Creates user's full text query, queried class, and query clause. For more information refer to CacheQuery documentation.

Parameters:

clsName - Query class name.

search - Search clause.

limit - Limits response records count. If 0 or less, considered to be no limit.

keepBinary - Keep binary flag.

Returns:

Created query.

queryIterators

public ConcurrentMap<UUID,GridCacheQueryManager.RequestFutureMap> queryIterators()

Returns:

Query iterators.

localQueryIterators

public GridConcurrentHashSet<GridCacheQueryManager.ScanQueryIterator> localQueryIterators()

Returns:

Local query iterators.