# Package org.apache.ignite.lang

Contains general language constructs and functional APIs for distributed computations.

See: Description

Interface Summary
IgniteAsyncSupport: Deprecated since 2.0.
IgniteBiClosure<E1,E2,R>: Defines generic closure with two parameters.
IgniteBiInClosure<E1,E2>: Closure with two in-parameters and void return type.
IgniteBiPredicate<E1,E2>: Defines a predicate which accepts two parameters and returns `true` or `false`.
IgniteCallable<V>: Grid-aware adapter for `Callable` implementations.
IgniteClosure<E,R>: Defines generic closure with one parameter.
IgniteFuture<V>: Future with simplified exception handling, functional programming support and ability to listen for future completion via functional callback.
IgniteInClosure<E>: Closure with one in-parameter and void return type.
IgniteOutClosure<T>: Closure that does not take any parameters and returns a value.
IgnitePredicate<E>: Defines a predicate which accepts a parameter and returns `true` or `false`.
IgniteReducer<E,R>: Defines generic reducer that collects multiple values and reduces them into one.
IgniteRunnable: Grid-aware adapter for `Runnable` implementations.

Class Summary
IgniteBiTuple<V1,V2>: Convenience class representing mutable tuple of two values.
IgniteProductVersion: Represents node version.
IgniteUuid: This is a faster performing version of `UUID`.

Exception Summary
IgniteFutureCancelledException: Future computation cannot be retrieved because it was cancelled.
IgniteFutureTimeoutException: Future computation completion is timed out.

Annotation Types Summary
IgniteAsyncCallback: If callback has this annotation then it will be executing in another thread.
IgniteAsyncSupported: Deprecated since 2.0.
IgniteNotPeerDeployable: This annotations should be used to mark any type that should not be peer deployable.

## Package org.apache.ignite.lang Description

Contains general language constructs and functional APIs for distributed computations.

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Ignite Fabric | : ver. 2.4.0
Release Date | : March 5 2018