Class ExtendedMapMode

java.lang.Object
jdk.nio.mapmode.ExtendedMapMode
public class ExtendedMapMode extends Object
JDK-specific map modes.
Since:
14
See Also:

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final FileChannel.MapMode
    READ_ONLY_SYNC
    File mapping mode for a read-only mapping of a file backed by non-volatile RAM.
    static final FileChannel.MapMode
    READ_WRITE_SYNC
    File mapping mode for a read-write mapping of a file backed by non-volatile RAM.

  • Method Summary

    Methods declared in class Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    Modifier and Type
    Method
    Description
    protected Object
    clone()
    Answers a new instance of the same class as the receiver, whose slots have been filled in with the values in the slots of the receiver.
    boolean
    equals(Object o)
    Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison.
    protected void
    finalize()
    Deprecated, for removal: This API element is subject to removal in a future version.
    May cause performance issues, deadlocks and hangs.
    final Class<? extends Object>
    getClass()
    Answers the unique instance of java.lang.Class which represents the class of the receiver.
    int
    hashCode()
    Answers an integer hash code for the receiver.
    final void
    notify()
    Causes one thread which is waiting on the receiver to be made ready to run.
    final void
    notifyAll()
    Causes all threads which are waiting on the receiver to be made ready to run.
    String
    toString()
    Answers a string containing a concise, human-readable description of the receiver.
    final void
    wait()
    Causes the thread which sent this message to be made not ready to run pending some change in the receiver (as indicated by notify or notifyAll).
    final void
    wait(long time)
    Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.
    final void
    wait(long time, int frac)
    Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.

  • Field Details

    • READ_ONLY_SYNC

      public static final FileChannel.MapMode READ_ONLY_SYNC
      File mapping mode for a read-only mapping of a file backed by non-volatile RAM.

      The map method throws UnsupportedOperationException when this map mode is used on an implementation that does not support it.

      Implementation Note:
      On Linux, the MAP_SYNC and MAP_SHARED_VALIDATE flags are specified to mmap when mapping the file into memory.

    • READ_WRITE_SYNC

      public static final FileChannel.MapMode READ_WRITE_SYNC
      File mapping mode for a read-write mapping of a file backed by non-volatile RAM. force operations on a buffer created with this mode will be performed using cache line writeback rather than proceeding via a file device flush.

      The map method throws UnsupportedOperationException when this map mode is used on an implementation that does not support it.

      Implementation Note:
      On Linux, the MAP_SYNC and MAP_SHARED_VALIDATE flags are specified to mmap when mapping the file into memory.