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 package com.fasterxml.clustermate.client;
 public abstract class ClusterViewByClient<K extends EntryKey>
Accessor for finding out number of server nodes cluster is known to have.
    public abstract int getServerCount();

Method that can be called to determine whether at least one node exists to access all keys of cluster's key space. Currently this accepts both active and passive ranges, as well as disabled nodes; mostly because method is called during bootstrapping when we are typically interested in possibility of everything being accessible.
    public abstract boolean isFullyAvailable();

Method for accessing exact coverage that we currently have for key space; returns number of hash slots that are covered by at least one node.
    public abstract int getCoverage();

Method for finding set of nodes to contact for accessing content with specified key.
    public abstract NodesForKey getNodesFor(K key);
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