Class ExtendedMapMode

java.lang.Object

jdk.nio.mapmode.ExtendedMapMode

public class ExtendedMapMode extends Object

JDK-specific map modes.

Since:

See Also:

Field Summary

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()`	Creates and returns a copy of this object.
`boolean`	`equals(Object obj)`	Indicates whether some other object is "equal to" this one.
`protected void`	`finalize()`	Deprecated, for removal: This API element is subject to removal in a future version. Finalization is deprecated and subject to removal in a future release.
`final Class<?>`	`getClass()`	Returns the runtime class of this `Object`.
`int`	`hashCode()`	Returns a hash code value for this object.
`final void`	`notify()`	Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()`	Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()`	Returns a string representation of the object.
`final void`	`wait()`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
`final void`	`wait(long timeoutMillis)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis, int nanos)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

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.

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