Package org.infinispan.xsite.irac

Enum NoOpIracManager

java.lang.Object
java.lang.Enum<NoOpIracManager>
org.infinispan.xsite.irac.NoOpIracManager
All Implemented Interfaces:
Serializable, Comparable<NoOpIracManager>, IracManager
public enum NoOpIracManager extends Enum<NoOpIracManager> implements IracManager
A no-op implementation of IracManager for cache without asynchronous remote site backups.
Since:
11.0
Author:
Pedro Ruivo

  • Enum Constant Details

  • Method Details

    • values

      public static NoOpIracManager[] values()
      Returns an array containing the constants of this enum type, in the order they are declared.
      Returns:
      an array containing the constants of this enum type, in the order they are declared

    • valueOf

      public static NoOpIracManager valueOf(String name)
      Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
      Parameters:
      name - the name of the enum constant to be returned.
      Returns:
      the enum constant with the specified name
      Throws:
      IllegalArgumentException - if this enum type has no constant with the specified name
      NullPointerException - if the argument is null

    • trackUpdatedKey

      public void trackUpdatedKey(int segment, Object key, Object lockOwner)
      Description copied from interface: IracManager
      Sets the key as changed by the lockOwner.
      Specified by:
      trackUpdatedKey in interface IracManager
      Parameters:
      segment - The key's segment.
      key - The key changed.
      lockOwner - The lock owner who updated the key.

    • trackExpiredKey

      public void trackExpiredKey(int segment, Object key, Object lockOwner)
      Description copied from interface: IracManager
      Similar to IracManager.trackUpdatedKey(int, Object, Object) but it tracks expired keys instead.

      Expired key need a different conflict resolution algorithm since remove expired should never win any conflict.

      Specified by:
      trackExpiredKey in interface IracManager
      Parameters:
      segment - The key's segment.
      key - The key expired.
      lockOwner - The lock owner who updated the key.

    • trackForStateTransfer

      public CompletionStage<Void> trackForStateTransfer(Collection<XSiteState> stateList)
      Description copied from interface: IracManager
      Tracks a set of keys to be sent to the remote site.

      There is no much difference between this method and IracManager.trackUpdatedKey(int, Object, Object). It just returns a CompletionStage to notify when the keys were sent. It is required by the cross-site state transfer protocol to know when it has finish.

      Specified by:
      trackForStateTransfer in interface IracManager
      Parameters:
      stateList - The list of XSiteState.
      Returns:
      A CompletionStage which is completed when all the keys in stateList have been sent to the remote site.

    • trackClear

      public void trackClear(boolean sendClear)
      Description copied from interface: IracManager
      Sets all keys as removed.
      Specified by:
      trackClear in interface IracManager
      Parameters:
      sendClear - if true, an IracClearKeysRequest is sent to the backup sites.

    • removeState

      public void removeState(IracManagerKeyInfo state)
      Description copied from interface: IracManager
      Removes the state associated to a single key.
      Specified by:
      removeState in interface IracManager
      Parameters:
      state - The state to remove.

    • onTopologyUpdate

      public void onTopologyUpdate(CacheTopology oldCacheTopology, CacheTopology newCacheTopology)
      Description copied from interface: IracManager
      Notifies a topology changed.
      Specified by:
      onTopologyUpdate in interface IracManager
      Parameters:
      oldCacheTopology - The old CacheTopology.
      newCacheTopology - The new CacheTopology.

    • requestState

      public void requestState(Address requestor, IntSet segments)
      Description copied from interface: IracManager
      Requests the state stored in this instance for the given segments.
      Specified by:
      requestState in interface IracManager
      Parameters:
      requestor - The requestor.
      segments - The segments requested.

    • receiveState

      public void receiveState(int segment, Object key, Object lockOwner, IracMetadata tombstone)
      Description copied from interface: IracManager
      Receives the state related to the key.
      Specified by:
      receiveState in interface IracManager
      Parameters:
      segment - The key's segment.
      key - The key modified.
      lockOwner - The last lockOwner.
      tombstone - The tombstone (can be null)

    • checkAndTrackExpiration

      public CompletionStage<Boolean> checkAndTrackExpiration(Object key)
      Description copied from interface: IracManager
      Checks if the given key is expired on all other sites. If the key is expired on all other sites this will return true
      Specified by:
      checkAndTrackExpiration in interface IracManager
      Parameters:
      key - The key to check if it is expired or not
      Returns:
      Whether this key is expired on all other sites

    • incrementNumberOfDiscards

      public void incrementNumberOfDiscards()
      Description copied from interface: IracManager
      Increase the count of discards.
      Specified by:
      incrementNumberOfDiscards in interface IracManager

    • incrementNumberOfConflictLocalWins

      public void incrementNumberOfConflictLocalWins()
      Description copied from interface: IracManager
      Increase the count of conflicts if merge policy discard update (local value wins)
      Specified by:
      incrementNumberOfConflictLocalWins in interface IracManager

    • incrementNumberOfConflictRemoteWins

      public void incrementNumberOfConflictRemoteWins()
      Description copied from interface: IracManager
      Increase the count of conflicts if merge policy applies update (remote value wins)
      Specified by:
      incrementNumberOfConflictRemoteWins in interface IracManager

    • incrementNumberOfConflictMerged

      public void incrementNumberOfConflictMerged()
      Description copied from interface: IracManager
      Increase the count of conflicts if merge policy created a new value (merge remote value with local value)
      Specified by:
      incrementNumberOfConflictMerged in interface IracManager

    • containsKey

      public boolean containsKey(Object key)
      Description copied from interface: IracManager
      Checks if the key is present.

      A key is present as long as its latest update was not confirmed by all remote sites.

      Specified by:
      containsKey in interface IracManager
      Parameters:
      key - The key to check.
      Returns:
      true if the key is present.