Class ExtendedMapMode

java.lang.Object
jdk.nio.mapmode.ExtendedMapMode

public class ExtendedMapMode
extends Object
JDK-specific map modes.
Since:
14
See Also:
FileChannel.map(java.nio.channels.FileChannel.MapMode, long, long)
  • 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.