# Package org.apache.ignite.internal.cluster

Interface Summary
ClusterGroupEx: Internal projection interface.
IgniteClusterEx

Class Summary
ClusterGroupAdapter
ClusterNodeLocalMapImpl<K,V>: Implementation for node-local storage.
ClusterStartNodeResultImpl: Implementation for cluster start node result.
DetachedClusterNode: Representation of cluster node that isn't currently present in cluster.
IgniteClusterAsyncImpl
IgniteClusterImpl
NodeOrderComparator: Node order comparator.
NodeOrderLegacyComparator: Node order comparator.

Exception Summary
ClusterGroupEmptyCheckedException: This exception defines illegal call on empty projection.
ClusterTopologyCheckedException: This exception is used to indicate error with grid topology (e.g., crashed node, etc.).
ClusterTopologyServerNotFoundException: Internal exception that is used to indicate that all server nodes have left the grid.

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Ignite Database and Caching Platform | : ver. 2.7.0
Release Date | : November 30 2018