# Package org.apache.ignite.events

Contains Event Subscription functionality together with various events emitted by Ignite.

See: Description

Interface Summary
Event: Grid events are used for notification about what happens within the grid.
EventType: Contains event type constants.

Class Summary
BaselineChangedEvent: Baseline changed event.
BaselineConfigurationChangedEvent: Baseline configuration changed event.
CacheConsistencyViolationEvent<K,V>: This is an experimental API.
CacheEvent: In-memory database (cache) event.
CacheQueryExecutedEvent<K,V>: Cache query execution event.
CacheQueryReadEvent<K,V>: Cache query read event.
CacheRebalancingEvent: In-memory database (cache) rebalancing event.
CheckpointEvent: Grid checkpoint event.
ClusterActivationEvent: Deprecated Use `ClusterStateChangeEvent` instead.
ClusterStateChangeEvent: Cluster state change event.
ClusterStateChangeStartedEvent: Cluster state change started event.
ClusterTagUpdatedEvent: Event type indicating that cluster tag has been updated.
DeploymentEvent: Grid deployment event.
DiscoveryEvent: Grid discovery event.
EventAdapter: Base adapter for the events.
JobEvent: Grid job event.
NodeValidationFailedEvent: This event is triggered if any of `GridComponent`s fail to validate the joining node while join message processing.
PageReplacementStartedEvent: Event type indicating that page replacement started in one of the configured data regions.
SnapshotEvent: Event indicating the cluster snapshot operation result state with the given name.
SqlQueryExecutionEvent: Query execution event.
TaskEvent: Grid task event.
TransactionStateChangedEvent: Event indicates transaction state change.
WalSegmentArchivedEvent: Event indicates the completion of WAL segment file transition to archive.
WalSegmentCompactedEvent: Event indicates the completion of WAL segment compaction.

## Package org.apache.ignite.events Description

Contains Event Subscription functionality together with various events emitted by Ignite.

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Ignite Database and Caching Platform | : ver. 2.10.0
Release Date | : March 10 2021