## Uses of Interface
org.apache.ignite.lang.IgniteFuture

- Packages that use IgniteFuture
  Package | Description
  --- | ---
  org.apache.ignite | Contains entry-point Ignite & HPC APIs.
  org.apache.ignite.cluster | Contains cluster-related classes.
  org.apache.ignite.compute | Contains Compute Grid functionality.
  org.apache.ignite.lang | Contains general language constructs and functional APIs for distributed computations.
  org.apache.ignite.scheduler | Contains Job Scheduling functionality.
  org.apache.ignite.spi | Contains common classes and interfaces for SPI implementations.
  org.apache.ignite.spi.communication.tcp | Contains default TCP/IP-based implementation for communication SPI.
  org.apache.ignite.spi.discovery | Contains APIs for topology manager SPI.
  org.apache.ignite.transactions | Contains transaction-related classes.

- - ### Uses of IgniteFuture in org.apache.ignite

    Methods in org.apache.ignite that return IgniteFuture
    Modifier and Type | Method | Description
    --- | --- | ---
    `<T> IgniteFuture<T>` | IgniteSemaphore.`acquireAndExecute​(IgniteCallable<T> callable, int numPermits)` | Acquires the given semaphore, executes the given callable and schedules the release of permits asynchronously
    `IgniteFuture<?>` | IgniteDataStreamer.`addData​(Collection<? extends Map.Entry<K,​V>> entries)` | Adds data for streaming on remote node.
    `IgniteFuture<?>` | IgniteDataStreamer.`addData​(Map.Entry<K,​V> entry)` | Adds data for streaming on remote node.
    `IgniteFuture<?>` | IgniteDataStreamer.`addData​(Map<K,​V> entries)` | Adds data for streaming on remote node.
    `IgniteFuture<?>` | IgniteDataStreamer.`addData​(K key, V val)` | Adds data for streaming on remote node.
    `<R> IgniteFuture<R>` | IgniteCompute.`affinityCallAsync​(@NotNull Collection<String> cacheNames, int partId, IgniteCallable<R> job)` | Executes given job asynchronously on the node where partition is located (the partition is primary on the node) The data of the partition will not be migrated from the target node while the job is executed.
    `<R> IgniteFuture<R>` | IgniteCompute.`affinityCallAsync​(@NotNull Collection<String> cacheNames, Object affKey, IgniteCallable<R> job)` | Executes given job asynchronously on the node where data for provided affinity key is located (a.k.a. affinity co-location).
    `<R> IgniteFuture<R>` | IgniteCompute.`affinityCallAsync​(String cacheName, Object affKey, IgniteCallable<R> job)` | Executes given job asynchronously on the node where data for provided affinity key is located (a.k.a. affinity co-location).
    `IgniteFuture<Void>` | IgniteCompute.`affinityRunAsync​(@NotNull Collection<String> cacheNames, int partId, IgniteRunnable job)` | Executes given job asynchronously on the node where partition is located (the partition is primary on the node) The data of the partition will not be migrated from the target node while the job is executed.
    `IgniteFuture<Void>` | IgniteCompute.`affinityRunAsync​(@NotNull Collection<String> cacheNames, Object affKey, IgniteRunnable job)` | Executes given job asynchronously on the node where data for provided affinity key is located (a.k.a. affinity co-location).
    `IgniteFuture<Void>` | IgniteCompute.`affinityRunAsync​(String cacheName, Object affKey, IgniteRunnable job)` | Executes given job asynchronously on the node where data for provided affinity key is located (a.k.a. affinity co-location).
    `<T,​R> IgniteFuture<Collection<R>>` | IgniteCompute.`applyAsync​(IgniteClosure<T,​R> job, Collection<? extends T> args)` | Executes provided closure job asynchronously on nodes within the underlying cluster group.
    `<R,​T> IgniteFuture<R>` | IgniteCompute.`applyAsync​(IgniteClosure<T,​R> job, T arg)` | Executes provided closure job asynchronously on a node within the underlying cluster group.
    `<R1,​R2,​T> IgniteFuture<R2>` | IgniteCompute.`applyAsync​(IgniteClosure<T,​R1> job, Collection<? extends T> args, IgniteReducer<R1,​R2> rdc)` | Executes provided closure job asynchronously on nodes within the underlying cluster group.
    `<R> IgniteFuture<Collection<R>>` | IgniteCompute.`broadcastAsync​(IgniteCallable<R> job)` | Broadcasts given job asynchronously to all nodes in cluster group.
    `<R,​T> IgniteFuture<Collection<R>>` | IgniteCompute.`broadcastAsync​(IgniteClosure<T,​R> job, T arg)` | Broadcasts given closure job asynchronously with passed in argument to all nodes in the cluster group.
    `IgniteFuture<Void>` | IgniteCompute.`broadcastAsync​(IgniteRunnable job)` | Broadcasts given job asynchronously to all nodes in the cluster group.
    `<R> IgniteFuture<Collection<R>>` | IgniteCompute.`callAsync​(Collection<? extends IgniteCallable<R>> jobs)` | Executes collection of jobs asynchronously on nodes within the underlying cluster group.
    `<R1,​R2> IgniteFuture<R2>` | IgniteCompute.`callAsync​(Collection<? extends IgniteCallable<R1>> jobs, IgniteReducer<R1,​R2> rdc)` | Executes collection of jobs asynchronously on nodes within the underlying cluster group.
    `<R> IgniteFuture<R>` | IgniteCompute.`callAsync​(IgniteCallable<R> job)` | Executes provided job asynchronously on a node within the underlying cluster group.
    `<R> IgniteFuture<R>` | IgniteScheduler.`callLocal​(@NotNull Callable<R> c)` | Executes given callable on internal system thread pool asynchronously.
    `IgniteFuture<Void>` | IgniteServices.`cancelAllAsync()` | Asynchronously cancels all deployed services.
    `IgniteFuture<Void>` | IgniteServices.`cancelAllAsync​(Collection<String> names)` | Asynchronously cancels services with specified names.
    `IgniteFuture<Void>` | IgniteServices.`cancelAsync​(String name)` | Asynchronously cancels service deployment.
    `IgniteFuture<Void>` | IgniteSnapshot.`cancelSnapshot​(String name)` | Cancel running snapshot operation.
    `IgniteFuture<Boolean>` | IgniteSnapshot.`cancelSnapshotRestore​(String name)` | Cancel snapshot restore operation.
    `IgniteFuture<Void>` | IgniteEncryption.`changeCacheGroupKey​(Collection<String> cacheOrGrpNames)` | Starts cache group encryption key change process.
    `IgniteFuture<Void>` | IgniteEncryption.`changeMasterKey​(String masterKeyName)` | Starts master key change process.
    `IgniteFuture<Void>` | IgniteCache.`clearAllAsync​(Set<? extends K> keys)` | Asynchronously clears entries from the cache and swap storage, without notifying listeners or `CacheWriter`s.
    `IgniteFuture<Void>` | IgniteCache.`clearAsync()` | Asynchronously clears the contents of the cache, without notifying listeners or `CacheWriter`s.
    `IgniteFuture<Void>` | IgniteCache.`clearAsync​(K key)` | Asynchronously clears entry from the cache and swap storage, without notifying listeners or `CacheWriter`s.
    `@Nullable IgniteFuture<?>` | IgniteCluster.`clientReconnectFuture()` | If local client node disconnected from cluster returns future that will be completed when client reconnected.
    `IgniteFuture<Boolean>` | IgniteCache.`containsKeyAsync​(K key)` | Asynchronously determines if the `Cache` contains an entry for the specified key.
    `IgniteFuture<Boolean>` | IgniteCache.`containsKeysAsync​(Set<? extends K> keys)` | Asynchronously determines if the `Cache` contains entries for the specified keys.
    `IgniteFuture<Void>` | IgniteSnapshot.`createDump​(String name, @Nullable Collection<String> cacheGroupNames)` | Creates cache groups dump.
    `IgniteFuture<Void>` | IgniteSnapshot.`createIncrementalSnapshot​(String snapshotName)` | Create an incremental snapshot for an existing snapshot.
    `IgniteFuture<Void>` | IgniteSnapshot.`createSnapshot​(String name)` | Create a consistent copy of all persistence cache groups from the whole cluster.
    `IgniteFuture<Void>` | IgniteServices.`deployAllAsync​(Collection<ServiceConfiguration> cfgs)` | Asynchronously deploys multiple services described by provided configurations.
    `IgniteFuture<Void>` | IgniteServices.`deployAsync​(ServiceConfiguration cfg)` | Asynchronously deploys multiple instances of the service on the grid according to provided configuration.
    `IgniteFuture<Void>` | IgniteServices.`deployClusterSingletonAsync​(String name, Service svc)` | Asynchronously deploys a cluster-wide singleton service.
    `IgniteFuture<Void>` | IgniteServices.`deployKeyAffinitySingletonAsync​(String name, Service svc, @Nullable String cacheName, Object affKey)` | Asynchronously deploys one instance of this service on the primary node for a given affinity key.
    `IgniteFuture<Void>` | IgniteServices.`deployMultipleAsync​(String name, Service svc, int totalCnt, int maxPerNodeCnt)` | Asynchronously deploys multiple instances of the service on the grid.
    `IgniteFuture<Void>` | IgniteServices.`deployNodeSingletonAsync​(String name, Service svc)` | Asynchronously deploys a per-node singleton service.
    `IgniteFuture<?>` | IgniteDataStreamer.`future()` | Gets future for this streaming process.
    `IgniteFuture<Map<K,​V>>` | IgniteCache.`getAllAsync​(Set<? extends K> keys)` | Asynchronously gets a collection of entries from the `Cache`, returning them as `Map` of the values associated with the set of keys requested.
    `IgniteFuture<Map<K,​V>>` | IgniteCache.`getAllOutTxAsync​(Set<? extends K> keys)` | Asynchronously gets values from cache.
    `IgniteFuture<V>` | IgniteCache.`getAndPutAsync​(K key, V val)` | Asynchronously associates the specified value with the specified key in this cache, returning an existing value if one existed as the future result.
    `IgniteFuture<V>` | IgniteCache.`getAndPutIfAbsentAsync​(K key, V val)` | Asynchronously stores given key-value pair in cache only if cache had no previous mapping for it.
    `IgniteFuture<V>` | IgniteCache.`getAndRemoveAsync​(K key)` | Asynchronously removes the entry for a key only if currently mapped to some value.
    `IgniteFuture<V>` | IgniteCache.`getAndReplaceAsync​(K key, V val)` | Asynchronously replaces the value for a given key if and only if there is a value currently mapped by the key.
    `IgniteFuture<V>` | IgniteCache.`getAsync​(K key)` | Asynchronously gets an entry from the cache.
    `IgniteFuture<Collection<CacheEntry<K,​V>>>` | IgniteCache.`getEntriesAsync​(Set<? extends K> keys)` | Asynchronously gets a collection of entries from the `Cache`.
    `IgniteFuture<CacheEntry<K,​V>>` | IgniteCache.`getEntryAsync​(K key)` | Asynchronously gets an entry from the cache.
    `IgniteFuture<?>` | IgniteCache.`indexReadyFuture()` | Returns future that will be completed when all indexes for this cache are ready to use.
    `<T> IgniteFuture<Map<K,​javax.cache.processor.EntryProcessorResult<T>>>` | IgniteCache.`invokeAllAsync​(Map<? extends K,​? extends javax.cache.processor.EntryProcessor<K,​V,​T>> map, Object... args)` | Asynchronous version of the `IgniteCache.invokeAll(Map, Object...)` method.
    `<T> IgniteFuture<Map<K,​javax.cache.processor.EntryProcessorResult<T>>>` | IgniteCache.`invokeAllAsync​(Set<? extends K> keys, javax.cache.processor.EntryProcessor<K,​V,​T> entryProcessor, Object... args)` | Asynchronously invokes an `EntryProcessor` against the set of `Cache.Entry`s specified by the set of keys.
    `<T> IgniteFuture<Map<K,​javax.cache.processor.EntryProcessorResult<T>>>` | IgniteCache.`invokeAllAsync​(Set<? extends K> keys, CacheEntryProcessor<K,​V,​T> entryProcessor, Object... args)` | Asynchronously invokes an `CacheEntryProcessor` against the set of `Cache.Entry`s specified by the set of keys.
    `<T> IgniteFuture<T>` | IgniteCache.`invokeAsync​(K key, javax.cache.processor.EntryProcessor<K,​V,​T> entryProcessor, Object... arguments)` | Asynchronously invokes an `EntryProcessor` against the `Cache.Entry` specified by the provided key.
    `<T> IgniteFuture<T>` | IgniteCache.`invokeAsync​(K key, CacheEntryProcessor<K,​V,​T> entryProcessor, Object... arguments)` | Asynchronously invokes an `CacheEntryProcessor` against the `Cache.Entry` specified by the provided key.
    `IgniteFuture<Void>` | IgniteCache.`loadCacheAsync​(@Nullable IgniteBiPredicate<K,​V> p, @Nullable Object... args)` | Asynchronously executes `IgniteCache.localLoadCache(IgniteBiPredicate, Object...)` on all cache nodes.
    `IgniteFuture<Void>` | IgniteCache.`localLoadCacheAsync​(@Nullable IgniteBiPredicate<K,​V> p, @Nullable Object... args)` | Asynchronously loads state from the underlying persistent storage by delegating to `CacheStore.loadCache(IgniteBiInClosure,Object...)` method.
    `IgniteFuture<Void>` | IgniteCache.`preloadPartitionAsync​(int partition)` | Efficiently preloads cache partition into page memory.
    `IgniteFuture<Void>` | IgniteCache.`putAllAsync​(Map<? extends K,​? extends V> map)` | Asynchronously copies all of the entries from the specified map to the `Cache`.
    `IgniteFuture<Void>` | IgniteCache.`putAsync​(K key, V val)` | Asynchronously associates the specified value with the specified key in the cache.
    `IgniteFuture<Boolean>` | IgniteCache.`putIfAbsentAsync​(K key, V val)` | Asynchronously associates the specified key with the given value if it is not already associated with a value.
    `IgniteFuture<Boolean>` | IgniteCache.`rebalance()` | Deprecated. Use baseline topology feature instead.
    `IgniteFuture<?>` | IgniteClientDisconnectedException.`reconnectFuture()` |
    `<T extends Event> IgniteFuture<UUID>` | IgniteEvents.`remoteListenAsync​(int bufSize, long interval, boolean autoUnsubscribe, @Nullable IgniteBiPredicate<UUID,​T> locLsnr, @Nullable IgnitePredicate<T> rmtFilter, @org.jetbrains.annotations.Nullable int... types)` | Asynchronously adds event listener for specified events to all nodes in the cluster group (possibly including local node if it belongs to the cluster group as well).
    `<T extends Event> IgniteFuture<UUID>` | IgniteEvents.`remoteListenAsync​(@Nullable IgniteBiPredicate<UUID,​T> locLsnr, @Nullable IgnitePredicate<T> rmtFilter, @org.jetbrains.annotations.Nullable int... types)` | Asynchronously adds event listener for specified events to all nodes in the cluster group (possibly including local node if it belongs to the cluster group as well).
    `IgniteFuture<UUID>` | IgniteMessaging.`remoteListenAsync​(@Nullable Object topic, IgniteBiPredicate<UUID,​?> p)` | Asynchronously adds a message listener for a given topic to all nodes in the cluster group (possibly including this node if it belongs to the cluster group as well).
    `<T extends Event> IgniteFuture<List<T>>` | IgniteEvents.`remoteQueryAsync​(IgnitePredicate<T> p, long timeout, @org.jetbrains.annotations.Nullable int... types)` | Asynchronously queries nodes in this cluster group for events using passed in predicate filter for event selection.
    `IgniteFuture<Void>` | IgniteCache.`removeAllAsync()` | Asynchronously removes all of the mappings from this cache.
    `IgniteFuture<Void>` | IgniteCache.`removeAllAsync​(Set<? extends K> keys)` | Asynchronously removes entries for the specified keys.
    `IgniteFuture<Boolean>` | IgniteCache.`removeAsync​(K key)` | Asynchronously removes the mapping for a key from this cache if it is present.
    `IgniteFuture<Boolean>` | IgniteCache.`removeAsync​(K key, V oldVal)` | Asynchronously removes the mapping for a key only if currently mapped to the given value.
    `IgniteFuture<?>` | IgniteDataStreamer.`removeData​(K key)` | Adds key for removal on remote node.
    `IgniteFuture<Boolean>` | IgniteCache.`replaceAsync​(K key, V val)` | Asynchronously replaces the entry for a key only if currently mapped to a given value.
    `IgniteFuture<Boolean>` | IgniteCache.`replaceAsync​(K key, V oldVal, V newVal)` | Asynchronous version of the `IgniteCache.replace(Object, Object, Object)`.
    `IgniteFuture<?>` | IgniteCacheRestartingException.`restartFuture()` |
    `IgniteFuture<Void>` | IgniteSnapshot.`restoreSnapshot​(String name, @Nullable Collection<String> cacheGroupNames)` | Restore cache group(s) from the snapshot.
    `IgniteFuture<Void>` | IgniteSnapshot.`restoreSnapshot​(String name, @Nullable Collection<String> cacheGroupNames, int incIdx)` | Restore cache group(s) from the snapshot and its increments.
    `IgniteFuture<Void>` | IgniteCompute.`runAsync​(Collection<? extends IgniteRunnable> jobs)` | Executes collection of jobs asynchronously on grid nodes within the underlying cluster group.
    `IgniteFuture<Void>` | IgniteCompute.`runAsync​(IgniteRunnable job)` | Executes provided job asynchronously on a node within the underlying cluster group.
    `IgniteFuture<?>` | IgniteScheduler.`runLocal​(@NotNull Runnable r)` | Executes given closure on internal system thread pool asynchronously.
    `IgniteFuture<Integer>` | IgniteCache.`sizeAsync​(CachePeekMode... peekModes)` | Asynchronously gets the number of all entries cached across all nodes.
    `IgniteFuture<Long>` | IgniteCache.`sizeLongAsync​(int partition, CachePeekMode... peekModes)` | Asynchronously gets the number of all entries cached in a partition as a long value.
    `IgniteFuture<Long>` | IgniteCache.`sizeLongAsync​(CachePeekMode... peekModes)` | Asynchronously gets the number of all entries cached across all nodes as a long value.
    `IgniteFuture<Collection<ClusterStartNodeResult>>` | IgniteCluster.`startNodesAsync​(File file, boolean restart, int timeout, int maxConn)` | Starts one or more nodes on remote host(s) asynchronously.
    `IgniteFuture<Collection<ClusterStartNodeResult>>` | IgniteCluster.`startNodesAsync​(Collection<Map<String,​Object>> hosts, @Nullable Map<String,​Object> dflts, boolean restart, int timeout, int maxConn)` | Starts one or more nodes on remote host(s) asynchronously.
    `IgniteFuture<Void>` | IgniteEvents.`stopRemoteListenAsync​(UUID opId)` | Asynchronously stops listening to remote events.
    `IgniteFuture<Void>` | IgniteMessaging.`stopRemoteListenAsync​(UUID opId)` | Asynchronously unregisters all listeners identified with provided operation ID on all nodes in the cluster group.
    `<T extends Event> IgniteFuture<T>` | IgniteEvents.`waitForLocalAsync​(@Nullable IgnitePredicate<T> filter, @org.jetbrains.annotations.Nullable int... types)` | Create future to wait for the specified events.

    Constructors in org.apache.ignite with parameters of type IgniteFuture
    Constructor | Description
    --- | ---
    `IgniteCacheRestartingException​(IgniteFuture<?> restartFut, String cacheName)` |
    `IgniteCacheRestartingException​(IgniteFuture<?> restartFut, String cacheName, @Nullable Throwable cause)` |
    `IgniteClientDisconnectedException​(IgniteFuture<?> reconnectFut, String msg)` |
    `IgniteClientDisconnectedException​(IgniteFuture<?> reconnectFut, String msg, @Nullable Throwable cause)` |

  - ### Uses of IgniteFuture in org.apache.ignite.cluster

    Methods in org.apache.ignite.cluster that return IgniteFuture
    Modifier and Type | Method | Description
    --- | --- | ---
    `IgniteFuture<?>` | ClusterTopologyException.`retryReadyFuture()` |

    Methods in org.apache.ignite.cluster with parameters of type IgniteFuture
    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | ClusterTopologyException.`retryReadyFuture​(IgniteFuture<?> readyFut)` |

  - ### Uses of IgniteFuture in org.apache.ignite.compute

    Subinterfaces of IgniteFuture in org.apache.ignite.compute
    Modifier and Type | Interface | Description
    --- | --- | ---
    `interface` | `ComputeTaskFuture<R>` | This class defines a handler for asynchronous task execution.

    Methods in org.apache.ignite.compute that return IgniteFuture
    Modifier and Type | Method | Description
    --- | --- | ---
    `IgniteFuture<?>` | ComputeTaskSession.`mapFuture()` | Gets future that will be completed when task "`map`" step has completed (which means that `ComputeTask.map(List, Object)` method has finished).

  - ### Uses of IgniteFuture in org.apache.ignite.lang

    Methods in org.apache.ignite.lang that return IgniteFuture
    Modifier and Type | Method | Description
    --- | --- | ---
    `<T> IgniteFuture<T>` | IgniteFuture.`chain​(IgniteClosure<? super IgniteFuture<V>,​T> doneCb)` | Make a chained future to convert result of this future (when complete) into a new format.
    `<T> IgniteFuture<T>` | IgniteFuture.`chainAsync​(IgniteClosure<? super IgniteFuture<V>,​T> doneCb, Executor exec)` | Make a chained future to convert result of this future (when complete) into a new format.
    `<R> IgniteFuture<R>` | IgniteAsyncSupport.`future()` | Deprecated. since 2.0.

    Method parameters in org.apache.ignite.lang with type arguments of type IgniteFuture
    Modifier and Type | Method | Description
    --- | --- | ---
    `<T> IgniteFuture<T>` | IgniteFuture.`chain​(IgniteClosure<? super IgniteFuture<V>,​T> doneCb)` | Make a chained future to convert result of this future (when complete) into a new format.
    `<T> IgniteFuture<T>` | IgniteFuture.`chainAsync​(IgniteClosure<? super IgniteFuture<V>,​T> doneCb, Executor exec)` | Make a chained future to convert result of this future (when complete) into a new format.
    `void` | IgniteFuture.`listen​(IgniteInClosure<? super IgniteFuture<V>> lsnr)` | Registers a callback to be invoked when the future completes.
    `void` | IgniteFuture.`listenAsync​(IgniteInClosure<? super IgniteFuture<V>> lsnr, Executor exec)` | Registers a callback to be invoked with the specified executor when the future completes.

  - ### Uses of IgniteFuture in org.apache.ignite.scheduler

    Subinterfaces of IgniteFuture in org.apache.ignite.scheduler
    Modifier and Type | Interface | Description
    --- | --- | ---
    `interface` | `SchedulerFuture<R>` | Future for cron-based scheduled execution.

  - ### Uses of IgniteFuture in org.apache.ignite.spi

    Methods in org.apache.ignite.spi with parameters of type IgniteFuture
    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | IgniteSpi.`onClientDisconnected​(IgniteFuture<?> reconnectFut)` | Client node disconnected callback.
    `void` | IgniteSpiAdapter.`onClientDisconnected​(IgniteFuture<?> reconnectFut)` | Client node disconnected callback.

  - ### Uses of IgniteFuture in org.apache.ignite.spi.communication.tcp

    Methods in org.apache.ignite.spi.communication.tcp that return IgniteFuture
    Modifier and Type | Method | Description
    --- | --- | ---
    `IgniteFuture<BitSet>` | TcpCommunicationSpi.`checkConnection​(List<ClusterNode> nodes)` |

    Methods in org.apache.ignite.spi.communication.tcp with parameters of type IgniteFuture
    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | TcpCommunicationSpi.`onClientDisconnected​(IgniteFuture<?> reconnectFut)` | Client node disconnected callback.

  - ### Uses of IgniteFuture in org.apache.ignite.spi.discovery

    Methods in org.apache.ignite.spi.discovery that return IgniteFuture
    Modifier and Type | Method | Description
    --- | --- | ---
    `IgniteFuture<?>` | DiscoverySpiListener.`onDiscovery​(DiscoveryNotification notification)` | Notification for grid node discovery events.

  - ### Uses of IgniteFuture in org.apache.ignite.transactions

    Methods in org.apache.ignite.transactions that return IgniteFuture
    Modifier and Type | Method | Description
    --- | --- | ---
    `IgniteFuture<Void>` | Transaction.`commitAsync()` | Asynchronously commits this transaction by initiating `two-phase-commit` process.
    `IgniteFuture<Void>` | Transaction.`rollbackAsync()` | Asynchronously rolls back this transaction.