Uses of Interface
org.apache.cassandra.utils.concurrent.Awaitable

Packages that use Awaitable

Package	Description
org.apache.cassandra.concurrent
org.apache.cassandra.net
org.apache.cassandra.repair
org.apache.cassandra.schema
org.apache.cassandra.service.paxos.cleanup
org.apache.cassandra.service.reads.repair
org.apache.cassandra.streaming
org.apache.cassandra.utils.concurrent

Uses of Awaitable in org.apache.cassandra.concurrent

Classes in org.apache.cassandra.concurrent that implement Awaitable

Modifier and Type	Class and Description
class	FutureTask<V> A FutureTask that utilises Cassandra's AsyncFuture, making it compatible with ExecutorPlus.
class	FutureTaskWithResources<V> A FutureTask that utilises Cassandra's AsyncFuture, making it compatible with ExecutorPlus.
class	SyncFutureTask<T>

Uses of Awaitable in org.apache.cassandra.net

Classes in org.apache.cassandra.net that implement Awaitable

Modifier and Type	Class and Description
class	AsyncChannelPromise See AsyncPromise and ChannelPromise This class is all boiler plate, just ensuring we return ourselves and invoke the correct Promise method.
class	AsyncOneResponse<T> A callback specialized for returning a value from a single target; that is, this is for messages that we only send to one recipient.

Uses of Awaitable in org.apache.cassandra.repair

Classes in org.apache.cassandra.repair that implement Awaitable

Modifier and Type	Class and Description
class	AsymmetricRemoteSyncTask AsymmetricRemoteSyncTask sends SyncRequest to target node to repair(stream) data with other target replica.
class	LocalSyncTask LocalSyncTask performs streaming between local(coordinator) node and remote replica.
class	RepairJob RepairJob runs repair on given ColumnFamily.
class	RepairSession Coordinates the (active) repair of a list of non overlapping token ranges.
class	SnapshotTask SnapshotTask is a task that sends snapshot request.
class	SymmetricRemoteSyncTask SymmetricRemoteSyncTask sends SyncRequest to remote(non-coordinator) node to repair(stream) data with other replica.
class	SyncTask
class	ValidationTask ValidationTask sends ValidationRequest to a replica.

Uses of Awaitable in org.apache.cassandra.schema

Methods in org.apache.cassandra.schema that return Awaitable

Modifier and Type	Method and Description
Awaitable	DefaultSchemaUpdateHandler.clear() When clear is called the update handler will flag that the clear was requested.
Awaitable	OfflineSchemaUpdateHandler.clear()
Awaitable	SchemaUpdateHandler.clear() Marks the local schema to be cleared and refreshed.

Uses of Awaitable in org.apache.cassandra.service.paxos.cleanup

Classes in org.apache.cassandra.service.paxos.cleanup that implement Awaitable

Modifier and Type	Class and Description
class	PaxosCleanup
class	PaxosCleanupComplete
class	PaxosCleanupLocalCoordinator
class	PaxosCleanupSession
class	PaxosFinishPrepareCleanup
class	PaxosStartPrepareCleanup Determines the highest ballot we should attempt to repair

Uses of Awaitable in org.apache.cassandra.service.reads.repair

Classes in org.apache.cassandra.service.reads.repair that implement Awaitable

Modifier and Type	Class and Description
class	BlockingPartitionRepair

Uses of Awaitable in org.apache.cassandra.streaming

Classes in org.apache.cassandra.streaming that implement Awaitable

Modifier and Type	Class and Description
class	StreamResultFuture A future on the result (StreamState) of a streaming plan.

Uses of Awaitable in org.apache.cassandra.utils.concurrent

Subinterfaces of Awaitable in org.apache.cassandra.utils.concurrent

Modifier and Type	Interface and Description
interface	Condition Simpler API than java.util.concurrent.Condition; would be nice to extend it, but also nice to share API with Future, for which Netty's API is incompatible with java.util.concurrent.Condition Awaitable for explicit external signals.
interface	ConditionAsConsumer<T>
interface	CountDownLatch
interface	Future<V> A Future that integrates several different (but equivalent) APIs used within Cassandra into a single concept, integrating also with our Awaitable abstraction, to overall improve coherency and clarity in the codebase.
interface	Promise<V> A Promise that integrates Promise with our Future API to improve clarity and coherence in the codebase.
interface	RunnableFuture<V>
static interface	WaitQueue.Signal A Signal is a one-time-use mechanism for a thread to wait for notification that some condition state has transitioned that it may be interested in (and hence should check if it is).

Classes in org.apache.cassandra.utils.concurrent that implement Awaitable

Modifier and Type	Class and Description
class	AbstractFuture<V> Our default Future implementation, with all state being managed without locks (except those used by the JVM).
class	AsyncFuture<V> Our default Future implementation, with all state being managed without locks (except those used by the JVM).
class	AsyncPromise<V> Extends AsyncFuture to implement the Promise interface.
static class	AsyncPromise.WithExecutor<V>
static class	Awaitable.AbstractAwaitable
static class	Awaitable.AsyncAwaitable A barebones asynchronous Awaitable.
static class	Awaitable.SyncAwaitable A barebones Awaitable that uses mutual exclusion.
static class	Condition.Async An asynchronous Condition.
static class	Condition.Sync A Condition based on its object monitor.
static class	ConditionAsConsumer.Async<T>
static class	CountDownLatch.Async
static class	CountDownLatch.Sync
class	FutureCombiner<T> Netty's PromiseCombiner is not threadsafe, and we combine futures from multiple event executors.
class	ImmediateFuture<V>
class	SyncFuture<V> Netty's DefaultPromise uses a mutex to coordinate notifiers AND waiters between the eventLoop and the other threads.
class	SyncPromise<V> Extends SyncFuture to implement the Promise interface.
static class	SyncPromise.WithExecutor<V>
static class	WaitQueue.Standard.AbstractSignal An abstract signal implementation TODO: use intrusive linked list

Methods in org.apache.cassandra.utils.concurrent with type parameters of type Awaitable

Modifier and Type	Method and Description
static <A extends Awaitable> A	Awaitable.Defaults.awaitThrowUncheckedOnInterrupt(A await)
static <A extends Awaitable> A	Awaitable.Defaults.awaitUninterruptibly(A await) awaitUninterruptibly()

Methods in org.apache.cassandra.utils.concurrent that return Awaitable

Modifier and Type	Method and Description
Awaitable	Awaitable.await() Await indefinitely, throwing any interrupt.
Awaitable	Awaitable.AsyncAwaitable.await() await()
Awaitable	Awaitable.SyncAwaitable.await() await()
Awaitable	Awaitable.awaitThrowUncheckedOnInterrupt() Await indefinitely, throwing any interrupt as an unchecked exception.
Awaitable	Awaitable.AbstractAwaitable.awaitThrowUncheckedOnInterrupt() awaitThrowUncheckedOnInterrupt()
Awaitable	Awaitable.awaitUninterruptibly() Await indefinitely, ignoring interrupts (but maintaining the interrupt flag on exit).
Awaitable	Awaitable.AbstractAwaitable.awaitUninterruptibly() awaitUninterruptibly()

Methods in org.apache.cassandra.utils.concurrent with parameters of type Awaitable

Modifier and Type	Method and Description
static boolean	Awaitable.Defaults.await(Awaitable await, long time, java.util.concurrent.TimeUnit unit)
static boolean	Awaitable.Defaults.awaitThrowUncheckedOnInterrupt(Awaitable await, long time, java.util.concurrent.TimeUnit units)
static boolean	Awaitable.Defaults.awaitUninterruptibly(Awaitable await, long time, java.util.concurrent.TimeUnit units)
static boolean	Awaitable.Defaults.awaitUntilThrowUncheckedOnInterrupt(Awaitable await, long nanoTimeDeadline)
static boolean	Awaitable.Defaults.awaitUntilUninterruptibly(Awaitable await, long nanoTimeDeadline) awaitUntilUninterruptibly(long)