Channel

public interface Channel
implements Closeable

java.nio.channels.Channel

Known indirect subclasses

AbstractInterruptibleChannel, AbstractSelectableChannel, AsynchronousByteChannel, AsynchronousChannel, AsynchronousFileChannel, AsynchronousServerSocketChannel, AsynchronousSocketChannel, ByteChannel, Channel, DatagramChannel, FileChannel, GatheringByteChannel, InterruptibleChannel, MulticastChannel, NetworkChannel, and 10 others.

AbstractInterruptibleChannel	Base implementation class for interruptible channels.
AbstractSelectableChannel	Base implementation class for selectable channels.
AsynchronousByteChannel	An asynchronous channel that can read and write bytes.
AsynchronousChannel	A channel that supports asynchronous I/O operations.
AsynchronousFileChannel	An asynchronous channel for reading, writing, and manipulating a file.
AsynchronousServerSocketChannel	An asynchronous channel for stream-oriented listening sockets.
AsynchronousSocketChannel	An asynchronous channel for stream-oriented connecting sockets.
ByteChannel	A channel that can read and write bytes.
Channel	Instances of this class represent an ISO/IEC 7816-4 channel opened to a Secure Element.
DatagramChannel	A selectable channel for datagram-oriented sockets.
FileChannel	A channel for reading, writing, mapping, and manipulating a file.
GatheringByteChannel	A channel that can write bytes from a sequence of buffers.
InterruptibleChannel	A channel that can be asynchronously closed and interrupted.
MulticastChannel	A network channel that supports Internet Protocol (IP) multicasting.
NetworkChannel	A channel to a network socket.
Pipe.SinkChannel	A channel representing the writable end of a `Pipe`.
Pipe.SourceChannel	A channel representing the readable end of a `Pipe`.
ReadableByteChannel	A channel that can read bytes.
ScatteringByteChannel	A channel that can read bytes into a sequence of buffers.
SeekableByteChannel	A byte channel that maintains a current position and allows the position to be changed.
SelectableChannel	A channel that can be multiplexed via a `Selector`.
SensorDirectChannel	Class representing a sensor direct channel.
ServerSocketChannel	A selectable channel for stream-oriented listening sockets.
SocketChannel	A selectable channel for stream-oriented connecting sockets.
WritableByteChannel	A channel that can write bytes.

A nexus for I/O operations.

A channel represents an open connection to an entity such as a hardware device, a file, a network socket, or a program component that is capable of performing one or more distinct I/O operations, for example reading or writing.

A channel is either open or closed. A channel is open upon creation, and once closed it remains closed. Once a channel is closed, any attempt to invoke an I/O operation upon it will cause a ClosedChannelException to be thrown. Whether or not a channel is open may be tested by invoking its isOpen method.

Channels are, in general, intended to