# Package org.apache.ignite.spi

Contains common classes and interfaces for SPI implementations.

See: Description

Interface Summary
Interface | Description
--- | ---
IgniteSpi | This interface defines life-cycle of SPI implementation.
IgniteSpiCloseableIterator<T> | Closeable iterator.
IgniteSpiContext | SPI context provides common functionality for all SPI implementations.
IgniteSpiManagementMBean | This interface defines basic MBean for all SPI implementations.
IgniteSpiTimeoutObject | Provides possibility to schedule delayed execution, see `IgniteSpiContext.addTimeoutObject(IgniteSpiTimeoutObject)`.

Class Summary
Class | Description
--- | ---
IgniteNodeValidationResult | Result of joining node validation.
IgniteSpiAdapter | This class provides convenient adapter for SPI implementations.
IgniteSpiOperationTimeoutHelper | Object that incorporates logic that determines a timeout value for the next network related operation and checks whether a failure detection timeout is reached or not.
IgniteSpiThread | This class provides convenient adapter for threads used by SPIs.
IgniteSpiThreadFactory | This class provides implementation of `ThreadFactory` factory for creating grid SPI threads.

Enum Summary
Enum | Description
--- | ---
IgnitePortProtocol | Protocols supported by port processor.

Exception Summary
Exception | Description
--- | ---
IgniteSpiException | Exception thrown by SPI implementations.
IgniteSpiMultiException | Grid SPI exception which may contain more than one failure.
IgniteSpiOperationTimeoutException | Kind of exception that is used when failure detection timeout is enabled for `TcpDiscoverySpi` or `TcpCommunicationSpi`.
IgniteSpiVersionCheckException | Grid SPI exception for version check failure.

Annotation Types Summary
Annotation Type | Description
--- | ---
IgniteSpiConfiguration | Annotates SPI configuration setters on whether or not it is optional.
IgniteSpiConsistencyChecked | SPIs that have this annotation present will be checked for consistency within grid.
IgniteSpiMultipleInstancesSupport | Annotates whether or not multiple instances of this SPI can be started in the same VM.
IgniteSpiNoop | Annotates `NO-OP` SPI implementations.

## Package org.apache.ignite.spi Description

Contains common classes and interfaces for SPI implementations.

2017 Copyright © Apache Software Foundation

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Ignite Fabric | : ver. 1.9.0
Release Date | : March 2 2017