Package com.tangosol.util

Class NullImplementation.NullPersistenceEnvironment<R>

  • Type Parameters:
    R - the raw value type
    All Implemented Interfaces:
    com.oracle.coherence.persistence.PersistenceEnvironment<R>
    Direct Known Subclasses:
    SafePersistenceWrappers.SafePersistenceEnvironment
    Enclosing class:
    NullImplementation
    public static class NullImplementation.NullPersistenceEnvironment<R>
extends Object
implements com.oracle.coherence.persistence.PersistenceEnvironment<R>
    A PersistenceEnvironment that does nothing.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      com.oracle.coherence.persistence.PersistenceManager<R> createSnapshot​(String sSnapshot, com.oracle.coherence.persistence.PersistenceManager<R> manager)
      Create a PersistenceManager used to manage the snapshot with the specified identifier.
      String[] listSnapshots()
      Return the identifiers of the snapshots known to this environment.
      com.oracle.coherence.persistence.PersistenceManager<R> openActive()
      Open and return the singleton active PersistenceManager.
      com.oracle.coherence.persistence.PersistenceManager<R> openSnapshot​(String sSnapshot)
      Open a PersistenceManager used to access the snapshot with the specified identifier.
      void release()
      Release all resources held by this environment.
      boolean removeSnapshot​(String sSnapshot)
      Remove the persistent artifacts associated with the snapshot with the specified identifier.

      • Methods inherited from interface com.oracle.coherence.persistence.PersistenceEnvironment

        createSnapshot, openBackup, openEvents

    • Constructor Detail

      • NullPersistenceEnvironment

        public NullPersistenceEnvironment()

    • Method Detail

      • openActive

        public com.oracle.coherence.persistence.PersistenceManager<R> openActive()
        Open and return the singleton active PersistenceManager.
        Specified by:
        openActive in interface com.oracle.coherence.persistence.PersistenceEnvironment<R>
        Returns:
        the singleton active PersistenceManager or null if an active PersistenceManager has not been configured

      • openSnapshot

        public com.oracle.coherence.persistence.PersistenceManager<R> openSnapshot​(String sSnapshot)
        Open a PersistenceManager used to access the snapshot with the specified identifier.
        Specified by:
        openSnapshot in interface com.oracle.coherence.persistence.PersistenceEnvironment<R>
        Parameters:
        sSnapshot -  the snapshot identifier
        Returns:
        a PersistenceManager representing the snapshot

      • createSnapshot

        public com.oracle.coherence.persistence.PersistenceManager<R> createSnapshot​(String sSnapshot,
                                                                             com.oracle.coherence.persistence.PersistenceManager<R> manager)
        Create a PersistenceManager used to manage the snapshot with the specified identifier.
        Specified by:
        createSnapshot in interface com.oracle.coherence.persistence.PersistenceEnvironment<R>
        Parameters:
        sSnapshot -  the snapshot identifier
        manager - the optional PersistenceManager to create a snapshot of; if null, an empty snapshot will be created
        Returns:
        a PersistenceManager representing the snapshot

      • removeSnapshot

        public boolean removeSnapshot​(String sSnapshot)
        Remove the persistent artifacts associated with the snapshot with the specified identifier.
        Specified by:
        removeSnapshot in interface com.oracle.coherence.persistence.PersistenceEnvironment<R>
        Parameters:
        sSnapshot -  the snapshot identifier
        Returns:
        true if the snapshot was successfully deleted, false otherwise

      • listSnapshots

        public String[] listSnapshots()
        Return the identifiers of the snapshots known to this environment.
        Specified by:
        listSnapshots in interface com.oracle.coherence.persistence.PersistenceEnvironment<R>
        Returns:
        a list of the known snapshot identifiers

      • release

        public void release()
        Release all resources held by this environment. Note that the behavior of all other methods on this environment is undefined after this method is called.
        Specified by:
        release in interface com.oracle.coherence.persistence.PersistenceEnvironment<R>