# Package org.apache.ignite.internal.processors.query.schema

Interface Summary
SchemaIndexCacheFilter: Index row filter accepting current entry.
SchemaIndexCacheVisitor: Closure that internally applies given `SchemaIndexCacheVisitorClosure` to some set of entries.
SchemaIndexCacheVisitorClosure: Index closure accepting current entry state.

Class Summary
SchemaExchangeWorkerTask: Cache schema change task for exchange worker.
SchemaIndexCacheVisitorImpl: Traversor operating all primary and backup partitions of given cache.
SchemaIndexOperationCancellationToken: Index operation cancellation token.
SchemaNodeLeaveExchangeWorkerTask: Node leave exchange worker task.
SchemaOperationClientFuture: Schema operation client future.
SchemaOperationManager: Schema operation manager.
SchemaOperationWorker: Schema operation executor.

Exception Summary
SchemaOperationException: Schema operation exception.

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Ignite Fabric | : ver. 2.5.0
Release Date | : May 23 2018