Package org.apache.flink.runtime.state.heap

Class CopyOnWriteStateMap.StateMapEntry<K,N,S>

java.lang.Object
org.apache.flink.runtime.state.heap.CopyOnWriteStateMap.StateMapEntry<K,N,S>
Type Parameters:
K - type of key.
N - type of namespace.
S - type of state.
All Implemented Interfaces:
StateEntry<K,N,S>
Enclosing class:
CopyOnWriteStateMap<K,N,S>
@VisibleForTesting protected static class CopyOnWriteStateMap.StateMapEntry<K,N,S> extends Object implements StateEntry<K,N,S>
One entry in the CopyOnWriteStateMap. This is a triplet of key, namespace, and state. Thereby, key and namespace together serve as a composite key for the state. This class also contains some management meta data for copy-on-write, a pointer to link other CopyOnWriteStateMap.StateMapEntrys to a list, and cached hash code.

  • Method Details

    • setState

      public final void setState(@Nullable S value, int mapVersion)

    • getKey

      @Nonnull public K getKey()
      Description copied from interface: StateEntry
      Returns the key of this entry.
      Specified by:
      getKey in interface StateEntry<K,N,S>

    • getNamespace

      @Nonnull public N getNamespace()
      Description copied from interface: StateEntry
      Returns the namespace of this entry.
      Specified by:
      getNamespace in interface StateEntry<K,N,S>

    • getState

      @Nullable public S getState()
      Description copied from interface: StateEntry
      Returns the state of this entry.
      Specified by:
      getState in interface StateEntry<K,N,S>

    • equals

      public final boolean equals(Object o)
      Overrides:
      equals in class Object

    • hashCode

      public final int hashCode()
      Overrides:
      hashCode in class Object

    • toString

      public final String toString()
      Overrides:
      toString in class Object