Set which outgoing interface on which to send multicast packets.

  Set which outgoing interface on which to send multicast packets. Useful on hosts with multiple network interfaces, where applications want to use other than the system default. Takes/returns an InetAddress.

Valid for Multicast: DatagramSocketImpl

See Also: MulticastSocket.setInterface(InetAddress), MulticastSocket.getInterface(),

  Same as above.

  Same as above. This option is introduced so that the behaviour
with IP_MULTICAST_IF will be kept the same as before, while
this new option can support setting outgoing interfaces with either
IPv4 and IPv6 addresses.

NOTE: make sure there is no conflict with this
Since: 1.4
See Also: MulticastSocket.setNetworkInterface(NetworkInterface), MulticastSocket.getNetworkInterface(),

  This option enables or disables local loopback of multicast datagrams.

  This option enables or disables local loopback of multicast datagrams.
This option is enabled by default for Multicast Sockets.
Since: 1.4

  This option sets the type-of-service or traffic class field in the IP header for a TCP or UDP socket.

  This option sets the type-of-service or traffic class field
in the IP header for a TCP or UDP socket.
Since: 1.4

  Fetch the local address binding of a socket (this option cannot be "set" only "gotten", since sockets are bound at creation time, and so the locally bound address cannot be changed).

  Fetch the local address binding of a socket (this option cannot be "set" only "gotten", since sockets are bound at creation time, and so the locally bound address cannot be changed). The default local address of a socket is INADDR_ANY, meaning any local address on a multi-homed host. A multi-homed host can use this option to accept connections to only one of its addresses (in the case of a ServerSocket or DatagramSocket), or to specify its return address to the peer (for a Socket or DatagramSocket). The parameter of this option is an InetAddress.

This option must be specified in the constructor.

Valid for: SocketImpl, DatagramSocketImpl

See Also: Socket.getLocalAddress(), DatagramSocket.getLocalAddress(),

  Sets SO_BROADCAST for a socket.

  Sets SO_BROADCAST for a socket. This option enables and disables
the ability of the process to send broadcast messages. It is supported
for only datagram sockets and only on networks that support
the concept of a broadcast message (e.g. Ethernet, token ring, etc.),
and it is set by default for DatagramSockets.
Since: 1.4

  When the keepalive option is set for a TCP socket and no data has been exchanged across the socket in either direction for 2 hours (NOTE: the actual value is implementation dependent), TCP automatically sends a keepalive probe to the peer.

  When the keepalive option is set for a TCP socket and no data
has been exchanged across the socket in either direction for
2 hours (NOTE: the actual value is implementation dependent),
TCP automatically sends a keepalive probe to the peer. This probe is a
TCP segment to which the peer must respond.
One of three responses is expected:
1. The peer responds with the expected ACK. The application is not
notified (since everything is OK). TCP will send another probe
following another 2 hours of inactivity.
2. The peer responds with an RST, which tells the local TCP that
the peer host has crashed and rebooted. The socket is closed.
3. There is no response from the peer. The socket is closed.

The purpose of this option is to detect if the peer host crashes.

Valid only for TCP socket: SocketImpl
See Also: Socket.setKeepAlive(boolean), Socket.getKeepAlive(),

  Specify a linger-on-close timeout.

  Specify a linger-on-close timeout. This option disables/enables immediate return from a close() of a TCP Socket. Enabling this option with a non-zero Integer timeout means that a close() will block pending the transmission and acknowledgement of all data written to the peer, at which point the socket is closed gracefully. Upon reaching the linger timeout, the socket is closed forcefully, with a TCP RST. Enabling the option with a timeout of zero does a forceful close immediately. If the specified timeout value exceeds 65,535 it will be reduced to 65,535.

Valid only for TCP: SocketImpl
See Also: Socket.setSoLinger(boolean, int), Socket.getSoLinger(),

  When the OOBINLINE option is set, any TCP urgent data received on the socket will be received through the socket input stream.

  When the OOBINLINE option is set, any TCP urgent data received on
the socket will be received through the socket input stream.
When the option is disabled (which is the default) urgent data
is silently discarded.
See Also: Socket.setOOBInline(boolean), Socket.getOOBInline(),

  Set a hint the size of the underlying buffers used by the platform for incoming network I/O.

  Set a hint the size of the underlying buffers used by the
platform for incoming network I/O. When used in set, this is a
suggestion to the kernel from the application about the size of
buffers to use for the data to be received over the
socket. When used in get, this must return the size of the
buffer actually used by the platform when receiving in data on
this socket.

Valid for all sockets: SocketImpl, DatagramSocketImpl
See Also: Socket.setReceiveBufferSize(int), Socket.getReceiveBufferSize(), DatagramSocket.setReceiveBufferSize(int), DatagramSocket.getReceiveBufferSize(),

  Sets SO_REUSEADDR for a socket.

  Sets SO_REUSEADDR for a socket. This is used only for MulticastSockets in java, and it is set by default for MulticastSockets.

Valid for: DatagramSocketImpl

  Set a hint the size of the underlying buffers used by the platform for outgoing network I/O.

  Set a hint the size of the underlying buffers used by the
platform for outgoing network I/O. When used in set, this is a
suggestion to the kernel from the application about the size of
buffers to use for the data to be sent over the socket. When
used in get, this must return the size of the buffer actually
used by the platform when sending out data on this socket.

Valid for all sockets: SocketImpl, DatagramSocketImpl
See Also: Socket.setSendBufferSize(int), Socket.getSendBufferSize(), DatagramSocket.setSendBufferSize(int), DatagramSocket.getSendBufferSize(),

  Set a timeout on blocking Socket operations:

  Set a timeout on blocking Socket operations:

 ServerSocket.accept();
 SocketInputStream.read();
 DatagramSocket.receive();
 

The option must be set prior to entering a blocking operation to take effect. If the timeout expires and the operation would continue to block, java.io.InterruptedIOException is raised. The Socket is not closed in this case.

Valid for all sockets: SocketImpl, DatagramSocketImpl
See Also: Socket.setSoTimeout(int), ServerSocket.setSoTimeout(int), DatagramSocket.setSoTimeout(int),

  Disable Nagle's algorithm for this connection.

  Disable Nagle's algorithm for this connection. Written data to the network is not buffered pending acknowledgement of previously written data.

Valid for TCP only: SocketImpl.

See Also: Socket.setTcpNoDelay(boolean), Socket.getTcpNoDelay(),