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

Class GridCacheDistributedFieldsQueryFuture

java.lang.Object

java.util.concurrent.locks.AbstractOwnableSynchronizer

java.util.concurrent.locks.AbstractQueuedSynchronizer

org.apache.ignite.internal.util.future.GridFutureAdapter<Collection<R>>

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

org.apache.ignite.internal.processors.cache.query.GridCacheDistributedQueryFuture<Object,Object,List<Object>>

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

All Implemented Interfaces:

Serializable, IgniteInternalFuture<Collection<List<Object>>>, CacheQueryFuture<List<Object>>, GridCacheQueryMetadataAware, GridTimeoutObject

public class GridCacheDistributedFieldsQueryFuture
extends GridCacheDistributedQueryFuture<Object,Object,List<Object>>
implements GridCacheQueryMetadataAware

Distributed fields query future.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.concurrent.locks.AbstractQueuedSynchronizer

AbstractQueuedSynchronizer.ConditionObject

Field Summary

Fields inherited from class org.apache.ignite.internal.processors.cache.query.GridCacheQueryFutureAdapter

cctx, loc, log, mux, qry

Constructor Summary

Constructors

Constructor and Description
GridCacheDistributedFieldsQueryFuture(GridCacheContext<?,?> ctx, long reqId, GridCacheQueryBean qry, Iterable<ClusterNode> nodes)

Method Summary

Methods

Modifier and Type	Method and Description
IgniteInternalFuture<List<GridQueryFieldMetadata>>	metadata()
boolean	onCancelled() Callback to notify that future is cancelled.
boolean	onDone(Collection<List<Object>> res, Throwable err) Callback to notify that future is finished.
void	onPage(UUID nodeId, List<GridQueryFieldMetadata> metaData, Collection<Map<String,Object>> data, Throwable err, boolean finished)

Methods inherited from class org.apache.ignite.internal.processors.cache.query.GridCacheDistributedQueryFuture

cancelQuery, loadAllPages, loadPage, onNodeLeft, onPage, onTimeout

Methods inherited from class org.apache.ignite.internal.processors.cache.query.GridCacheQueryFutureAdapter

available, cancel, endTime, enqueue, get, get, next, nextPage, nextPage, onPage, printMemoryStats, query, timeoutId, toString

Methods inherited from class org.apache.ignite.internal.util.future.GridFutureAdapter

chain, duration, error, get, get0, ignoreInterrupts, isCancelled, isDone, isFailed, listen, onDone, onDone, onDone, result, startTime, tryAcquireShared, tryReleaseShared

Methods inherited from class java.util.concurrent.locks.AbstractQueuedSynchronizer

acquire, acquireInterruptibly, acquireShared, acquireSharedInterruptibly, compareAndSetState, getExclusiveQueuedThreads, getFirstQueuedThread, getQueuedThreads, getQueueLength, getSharedQueuedThreads, getState, getWaitingThreads, getWaitQueueLength, hasContended, hasQueuedPredecessors, hasQueuedThreads, hasWaiters, isHeldExclusively, isQueued, owns, release, releaseShared, setState, tryAcquire, tryAcquireNanos, tryAcquireSharedNanos, tryRelease

Methods inherited from class java.util.concurrent.locks.AbstractOwnableSynchronizer

getExclusiveOwnerThread, setExclusiveOwnerThread

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.processors.cache.query.CacheQueryFuture

isDone

Methods inherited from interface org.apache.ignite.internal.IgniteInternalFuture

chain, duration, error, get, isCancelled, listen, result, startTime

Constructor Detail

GridCacheDistributedFieldsQueryFuture

public GridCacheDistributedFieldsQueryFuture(GridCacheContext<?,?> ctx,
                                     long reqId,
                                     GridCacheQueryBean qry,
                                     Iterable<ClusterNode> nodes)

Parameters:

ctx - Cache context.

reqId - Request ID.

qry - Query.

nodes - Nodes.

Method Detail

onPage

public void onPage(@Nullable
          UUID nodeId,
          @Nullable
          List<GridQueryFieldMetadata> metaData,
          @Nullable
          Collection<Map<String,Object>> data,
          @Nullable
          Throwable err,
          boolean finished)

Parameters:

nodeId - Sender node ID.

metaData - Meta data.

data - Page data.

err - Error.

finished - Finished or not.

onDone

public boolean onDone(@Nullable
             Collection<List<Object>> res,
             @Nullable
             Throwable err)

Callback to notify that future is finished. Note that if non-null exception is passed in the result value will be ignored.

Overrides:

onDone in class GridCacheDistributedQueryFuture<Object,Object,List<Object>>

Parameters:

res - Optional result.

err - Optional error.

Returns:

True if result was set by this call.

onCancelled

public boolean onCancelled()

Callback to notify that future is cancelled.

Overrides:

onCancelled in class GridCacheDistributedQueryFuture<Object,Object,List<Object>>

Returns:

True if cancel flag was set by this call.

metadata

public IgniteInternalFuture<List<GridQueryFieldMetadata>> metadata()

Specified by:

metadata in interface GridCacheQueryMetadataAware

Returns:

Future to retrieve metadata.