public
interface
NetworkChannel
implements
Channel
| java.nio.channels.NetworkChannel |
 Known Indirect Subclasses
|
A channel to a network socket.
A channel that implements this interface is a channel to a network
socket. The bind method is used to bind the
socket to a local address, the getLocalAddress method returns the address that the socket is bound to, and
the setOption and getOption methods are used to set and query socket
options. An implementation of this interface should specify the socket options
that it supports.
The bind and setOption methods that do
not otherwise have a value to return are specified to return the network
channel upon which they are invoked. This allows method invocations to be
chained. Implementations of this interface should specialize the return type
so that method invocations on the implementation class can be chained.
Public methods | |
|---|---|
abstract
NetworkChannel
|
bind(SocketAddress local)
Binds the channel's socket to a local address. |
abstract
SocketAddress
|
getLocalAddress()
Returns the socket address that this channel's socket is bound to, or
|
abstract
<T>
T
|
getOption(SocketOption<T> name)
Returns the value of a socket option. |
abstract
<T>
NetworkChannel
|
setOption(SocketOption<T> name, T value)
Sets the value of a socket option. |
abstract
Set<SocketOption<?>>
|
supportedOptions()
Returns a set of the socket options supported by this channel. |
Inherited methods | |
|---|---|
From
interface
java.nio.channels.Channel
| |
From
interface
java.io.Closeable
| |
From
interface
java.lang.AutoCloseable
| |
NetworkChannel bind (SocketAddress local)
Binds the channel's socket to a local address.
This method is used to establish an association between the socket and
a local address. Once an association is established then the socket remains
bound until the channel is closed. If the local parameter has the
value null then the socket will be bound to an address that is
assigned automatically.
| Parameters | |
|---|---|
local |
SocketAddress:
The address to bind the socket, or null to bind the socket
to an automatically assigned socket address |
| Returns | |
|---|---|
NetworkChannel |
This channel |
| Throws | |
|---|---|
AlreadyBoundException |
If the socket is already bound |
UnsupportedAddressTypeException |
If the type of the given address is not supported |
ClosedChannelException |
If the channel is closed |
IOException |
If some other I/O error occurs |
SecurityException |
If a security manager is installed and it denies an unspecified permission. An implementation of this interface should specify any required permissions. |
See also:
SocketAddress getLocalAddress ()
Returns the socket address that this channel's socket is bound to, or
null if the socket is not bound.
Where the channel is bound to an Internet Protocol
socket address then the return value from this method is of type InetSocketAddress.
| Returns | |
|---|---|
SocketAddress |
The socket address that the socket is bound to, or null
if the channel's socket is not bound |
| Throws | |
|---|---|
ClosedChannelException |
If the channel is closed |
IOException |
If an I/O error occurs |
T getOption (SocketOption<T> name)
Returns the value of a socket option.
| Parameters | |
|---|---|
name |
SocketOption:
The socket option |
| Returns | |
|---|---|
T |
The value of the socket option. A value of null may be
a valid value for some socket options. |
| Throws | |
|---|---|
UnsupportedOperationException |
If the socket option is not supported by this channel |
ClosedChannelException |
If this channel is closed |
IOException |
If an I/O error occurs |
See also:
NetworkChannel setOption (SocketOption<T> name, T value)
Sets the value of a socket option.
| Parameters | |
|---|---|
name |
SocketOption:
The socket option |
value |
T:
The value of the socket option. A value of null may be
a valid value for some socket options. |
| Returns | |
|---|---|
NetworkChannel |
This channel |
| Throws | |
|---|---|
UnsupportedOperationException |
If the socket option is not supported by this channel |
IllegalArgumentException |
If the value is not a valid value for this socket option |
ClosedChannelException |
If this channel is closed |
IOException |
If an I/O error occurs |
See also:
Set<SocketOption<?>> supportedOptions ()
Returns a set of the socket options supported by this channel.
This method will continue to return the set of options even after the channel has been closed.
| Returns | |
|---|---|
Set<SocketOption<?>> |
A set of the socket options supported by this channel |
Developers