Package com.oracle.coherence.concurrent.atomic

Class LocalAtomicStampedReference<V>

java.lang.Object
com.oracle.coherence.concurrent.atomic.LocalAtomicStampedReference<V>
Type Parameters:
V - the type of object referred to by this reference
All Implemented Interfaces:
AtomicStampedReference<V>
public class LocalAtomicStampedReference<V> extends Object implements AtomicStampedReference<V>
Local implementation of AtomicStampedReference interface, that simply wraps java.util.concurrent.atomic.AtomicStampedReference instance.
Since:
21.06
Author:
Aleks Seovic 2020.12.09

  • Nested Class Summary

    Nested classes/interfaces inherited from interface com.oracle.coherence.concurrent.atomic.AtomicStampedReference

    AtomicStampedReference.Serializer<V>

  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    protected
    LocalAtomicStampedReference(AtomicStampedReference<V> value)
    Construct LocalAtomicStampedReference<V> instance.
    protected
    LocalAtomicStampedReference(V value, int nInitialStamp)
    Construct LocalAtomicStampedReference<V> instance.

  • Method Summary

    Modifier and Type
    Method
    Description
    AsyncLocalAtomicStampedReference<V>
    async()
    Return non-blocking API for this atomic reference.
    boolean
    attemptStamp(V expectedReference, int nNewStamp)
    Atomically sets the value of the stamp to the given update value if the current reference is == to the expected reference.
    boolean
    compareAndSet(V expectedReference, V newReference, int nExpectedStamp, int nNewStamp)
    Atomically sets the value of both the reference and stamp to the given update values if the current reference is == to the expected reference and the current stamp is equal to the expected stamp.
    V
    get(int[] iaStampHolder)
    Returns the current values of both the reference and the stamp.
    V
    getReference()
    Returns the current value of the reference.
    int
    getStamp()
    Returns the current value of the stamp.
    void
    set(V newReference, int nNewStamp)
    Unconditionally sets the value of both the reference and stamp.
    String
    toString()
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

  • Constructor Details

    • LocalAtomicStampedReference

      protected LocalAtomicStampedReference(V value, int nInitialStamp)
      Construct LocalAtomicStampedReference<V> instance.
      Parameters:
      value - initial value
      nInitialStamp - initial stamp

    • LocalAtomicStampedReference

      protected LocalAtomicStampedReference(AtomicStampedReference<V> value)
      Construct LocalAtomicStampedReference<V> instance.
      Parameters:
      value - wrapped value

  • Method Details

    • async

      public AsyncLocalAtomicStampedReference<V> async()
      Description copied from interface: AtomicStampedReference
      Return non-blocking API for this atomic reference.
      Specified by:
      async in interface AtomicStampedReference<V>
      Returns:
      non-blocking API for this atomic reference

    • getReference

      public V getReference()
      Description copied from interface: AtomicStampedReference
      Returns the current value of the reference.
      Specified by:
      getReference in interface AtomicStampedReference<V>
      Returns:
      the current value of the reference

    • getStamp

      public int getStamp()
      Description copied from interface: AtomicStampedReference
      Returns the current value of the stamp.
      Specified by:
      getStamp in interface AtomicStampedReference<V>
      Returns:
      the current value of the stamp

    • get

      public V get(int[] iaStampHolder)
      Description copied from interface: AtomicStampedReference
      Returns the current values of both the reference and the stamp. Typical usage is int[1] holder; ref = v.get(holder); .
      Specified by:
      get in interface AtomicStampedReference<V>
      Parameters:
      iaStampHolder - an array of size of at least one. On return, stampHolder[0] will hold the value of the stamp.
      Returns:
      the current value of the reference

    • compareAndSet

      public boolean compareAndSet(V expectedReference, V newReference, int nExpectedStamp, int nNewStamp)
      Description copied from interface: AtomicStampedReference
      Atomically sets the value of both the reference and stamp to the given update values if the current reference is == to the expected reference and the current stamp is equal to the expected stamp.
      Specified by:
      compareAndSet in interface AtomicStampedReference<V>
      Parameters:
      expectedReference - the expected value of the reference
      newReference - the new value for the reference
      nExpectedStamp - the expected value of the stamp
      nNewStamp - the new value for the stamp
      Returns:
      true if successful

    • set

      public void set(V newReference, int nNewStamp)
      Description copied from interface: AtomicStampedReference
      Unconditionally sets the value of both the reference and stamp.
      Specified by:
      set in interface AtomicStampedReference<V>
      Parameters:
      newReference - the new value for the reference
      nNewStamp - the new value for the stamp

    • attemptStamp

      public boolean attemptStamp(V expectedReference, int nNewStamp)
      Description copied from interface: AtomicStampedReference
      Atomically sets the value of the stamp to the given update value if the current reference is == to the expected reference. Any given invocation of this operation may fail (return false) spuriously, but repeated invocation when the current value holds the expected value and no other thread is also attempting to set the value will eventually succeed.
      Specified by:
      attemptStamp in interface AtomicStampedReference<V>
      Parameters:
      expectedReference - the expected value of the reference
      nNewStamp - the new value for the stamp
      Returns:
      true if successful

    • toString

      public String toString()
      Overrides:
      toString in class Object