Package org.apache.ignite.cache.affinity

## Class AffinityUuid

- java.lang.Object
- - org.apache.ignite.cache.affinity.AffinityKey<IgniteUuid>
  - - org.apache.ignite.cache.affinity.AffinityUuid

- All Implemented Interfaces:
    `Externalizable`, `Serializable`

      public class AffinityUuid
      extends AffinityKey<IgniteUuid>

  Guaranteed unique affinity-based key.
  See Also:
    Serialized Form

- - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `AffinityUuid()` | Empty constructor.
    `AffinityUuid​(Object affKey)` | Constructs unique affinity UUID based on affinity key.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `String` | `toString()`

    - ### Methods inherited from class org.apache.ignite.cache.affinity.AffinityKey

      `affinityKey, affinityKey, equals, hashCode, key, key, readExternal, writeExternal`

    - ### Methods inherited from class java.lang.Object

      `clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

- - ### Constructor Detail

    - #### AffinityUuid

          public AffinityUuid()

      Empty constructor.

    - #### AffinityUuid

          public AffinityUuid​(Object affKey)

      Constructs unique affinity UUID based on affinity key.
      Parameters:
        `affKey` - Affinity key to use for collocation.

  - ### Method Detail

    - #### toString

          public String toString()

      Overrides:
        `toString` in class `AffinityKey<IgniteUuid>`