PartitionedHashMap.HashFunction

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详细资料:
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所有已知实现类:

PartitionedHashMap.ConsistentHashFunction

封闭类:

PartitionedHashMap<K,V>
```
public static interface PartitionedHashMap.HashFunction<K>
```

- 方法概要
  
  方法
  限定符和类型方法和说明
  
  Address hash(K key, java.util.List<Address> membership)
  Defines a hash function to pick the right node from the list of cluster nodes.

- 方法详细资料
  - hash
```
Address hash(K key,
           java.util.List<Address> membership)
```
    Defines a hash function to pick the right node from the list of cluster nodes. Ideally, this function uses consistent hashing, so that the same key maps to the same node despite cluster view changes. If a view change causes all keys to hash to different nodes, then PartitionedHashMap will redirect requests to different nodes and this causes unnecessary overhead.
    
    参数:
    key - The object to be hashed
    membership - The membership. This value can be ignored for example if the hash function keeps track of the membership itself, e.g. by registering as a membership listener (PartitionedHashMap.addMembershipListener(MembershipListener) )
    
    返回:

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详细资料:
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