org.springframework.util

## 接口 ConcurrentReferenceHashMap.Reference<K,V>

- 封闭类:
    ConcurrentReferenceHashMap<K,V>

      protected static interface ConcurrentReferenceHashMap.Reference<K,V>

  A reference to an `ConcurrentReferenceHashMap.Entry` contained in the map. Implementations are usually wrappers around specific Java reference implementations (e.g., `SoftReference`).

- - ### 方法概要

    所有方法 实例方法 抽象方法
    限定符和类型 | 方法和说明
    --- | ---
    `ConcurrentReferenceHashMap.Entry<K,V>` | `get()` Return the referenced entry, or `null` if the entry is no longer available.
    `int` | `getHash()` Return the hash for the reference.
    `ConcurrentReferenceHashMap.Reference<K,V>` | `getNext()` Return the next reference in the chain, or `null` if none.
    `void` | `release()` Release this entry and ensure that it will be returned from `ReferenceManager#pollForPurge()`.

- - ### 方法详细资料

    - #### get

          @Nullable
          ConcurrentReferenceHashMap.Entry<K,V> get()

      Return the referenced entry, or `null` if the entry is no longer available.

    - #### getHash

          int getHash()

      Return the hash for the reference.

    - #### getNext

          @Nullable
          ConcurrentReferenceHashMap.Reference<K,V> getNext()

      Return the next reference in the chain, or `null` if none.

    - #### release

          void release()

      Release this entry and ensure that it will be returned from `ReferenceManager#pollForPurge()`.