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

Class GridCacheDistributedFieldsQueryFuture

java.lang.Object

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:

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

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

Distributed fields query future.

Field Summary

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

cctx, loc, log, qry

Constructor Summary

Constructors

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

Method Summary

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

awaitFirstPage, cancelQuery, loadAllPages, loadPage, onNodeLeft, onPage, onTimeout

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

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

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

chain, chain, error, get, ignoreInterrupts, isCancelled, isDone, isFailed, listen, logger, onDone, onDone, onDone, onDone, reset, result

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, chain, error, get, isCancelled, listen, result

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.