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Java Source Code / Java Documentation » Apache Harmony Java SE » java package » java.nio.channels.spi

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

java.nio.channels.spi .AbstractInterruptibleChannel

All known Subclasses:   java.nio.channels .FileChannel,  java.nio.channels .SelectableChannel,
AbstractInterruptibleChannel
abstract public class AbstractInterruptibleChannel implements Channel,InterruptibleChannel(Code)
This class roots the implementation of interruptible channels.
The basic usage pattern for an interruptible channel is to invoke begin() before any IO operations, then end(boolean) after completing the operation. The argument to the end method shows whether there has been any change to the java environment that is visible to the API user.

Field Summary
volatile boolean interrupted

static Method setInterruptAction


Constructor Summary
protected AbstractInterruptibleChannel()
     Default constructor.

Method Summary
final protected void begin()
     Start an IO operation that is potentially blocking.
final public void close()
     Closes the channel.
final protected void end(boolean success)
     End an IO operation that was previously started with begin().
abstract protected void implCloseChannel()
     Implements the close channel behavior.
final public synchronized boolean isOpen()
     Answers whether the channel is open.

Field Detail
interrupted
volatile boolean interrupted(Code)

setInterruptAction
static Method setInterruptAction(Code)

Constructor Detail
AbstractInterruptibleChannel
protected AbstractInterruptibleChannel()(Code)
Default constructor.

Method Detail
begin
final protected void begin()(Code)
Start an IO operation that is potentially blocking.
Once the operation is completed the application should invoke a corresponding end(boolean).

close
final public void close() throws IOException(Code)
Closes the channel.
If the channel is already closed then this method has no effect, otherwise it closes the receiver via the implCloseChannel method.

See Also:   java.nio.channels.Channel.close

end
final protected void end(boolean success) throws AsynchronousCloseException(Code)
End an IO operation that was previously started with begin().
Parameters:
  success - pass true if the operation succeeded and had a side effect onthe Java system, or false if not.
throws:
  AsynchronousCloseException - the channel was closed while the IO operation was inprogress.
throws:
  java.nio.channels.ClosedByInterruptException - the thread conducting the IO operation was interrupted.

implCloseChannel
abstract protected void implCloseChannel() throws IOException(Code)
Implements the close channel behavior.
Closes the channel with a guarantee that the channel is not currently closed via close() and that the method is thread-safe.

any outstanding threads blocked on IO operations on this channel must be released with either a normal return code, or an AsynchronousCloseException.
throws:
  IOException - if a problem occurs closing the channel.

isOpen
final public synchronized boolean isOpen()(Code)
Answers whether the channel is open. true if the channel is open, and false if it is closed.
See Also:   java.nio.channels.Channel.isOpen

Methods inherited from java.lang.Object
protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object object)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final public Class<? extends Object> getClass()(Code)(Java Doc)
public int hashCode()(Code)(Java Doc)
final public void notify()(Code)(Java Doc)
final public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final public void wait(long millis, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait(long millis) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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