Package Summary  Overview Summary

class:NetworkChannel [NONE]

All Superinterfaces:
AutoCloseable, Channel, Closeable
All Known Subinterfaces:
MulticastChannel
All Known Implementing Classes:
AsynchronousServerSocketChannel, AsynchronousSocketChannel, DatagramChannel, ServerSocketChannel, SocketChannel

public interface NetworkChannel
extends Channel
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.

Since:
1.7

method:bind(java.net.SocketAddress) [NONE]

  • bind

    NetworkChannel bind​(SocketAddress local) throws IOException
    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 - The address to bind the socket, or null to bind the socket to an automatically assigned socket address
    Returns:
    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:
    getLocalAddress()
  • method:getLocalAddress() [NONE]

    getLocalAddress

    SocketAddress getLocalAddress() throws IOException
    Returns the socket address that this channel's socket is bound to.

    Where the channel is bound to an Internet Protocol socket address then the return value from this method is of type InetSocketAddress.

    Returns:
    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
  • setOption

    <T> NetworkChannel setOption​(SocketOption<T> name, T value) throws IOException
    Sets the value of a socket option.
    Type Parameters:
    T - The type of the socket option value
    Parameters:
    name - The socket option
    value - The value of the socket option. A value of null may be a valid value for some socket options.
    Returns:
    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:
    StandardSocketOptions
  • method:getOption(java.net.SocketOption) [NONE]

    getOption

    <T> T getOption​(SocketOption<T> name) throws IOException
    Returns the value of a socket option.
    Type Parameters:
    T - The type of the socket option value
    Parameters:
    name - The socket option
    Returns:
    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:
    StandardSocketOptions

    method:supportedOptions() [NONE]

    supportedOptions

    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:
    A set of the socket options supported by this channel