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This
interface defines a communication
channel for input and output. The Channel
interface is a high-level generic interface which is extended by more
specific interfaces, such as ReadableByteChannel
and WritableByteChannel.
Channel defines only two methods: isOpen(
)
determines whether a channel is open, and close( )
closes a channel. Channels are open when they are first created. Once
closed, a channel remains closed forever, and no further I/O
operations may take place through it.Many channel implementations are interruptible and asynchonously
closeable, and implement the InterruptibleChannel
interface to advertise this fact. See
InterruptibleChannel for details.
Figure 13-17. java.nio.channels.Channel
public interface Channel extends java.io.Closeable {
// Public Instance Methods
void close ( ) throws java.io.IOException;
boolean isOpen ( );
}Implementations
InterruptibleChannel,
ReadableByteChannel,
SelectableChannel,
WritableByteChannel,
java.nio.channels.spi.AbstractInterruptibleChannel
Returned By
System.inheritedChannel( ),
java.nio.channels.spi.SelectorProvider.inheritedChannel()
