@Exported public class Sockets extends Object
SocketOption interface. All of the standard options defined
 by Socket, ServerSocket, and
 DatagramSocket can be set this way, as well as additional
 or platform specific options supported by each socket type.
 
 The supportedOptions(Class) method can be called to determine
 the complete set of options available (per socket type) on the
 current system.
 
 When a security manager is installed, some non-standard socket options
 may require a security permission before being set or get.
 The details are specified in ExtendedSocketOptions. No permission
 is required for StandardSocketOptions.
NetworkChannel| Modifier and Type | Method and Description | 
|---|---|
| static <T> T | getOption(DatagramSocket s,
         SocketOption<T> name)Returns the value of a socket option from a
  DatagramSocketorMulticastSocket | 
| static <T> T | getOption(ServerSocket s,
         SocketOption<T> name)Returns the value of a socket option from a  ServerSocket | 
| static <T> T | getOption(Socket s,
         SocketOption<T> name)Returns the value of a socket option from a  Socket | 
| static <T> void | setOption(DatagramSocket s,
         SocketOption<T> name,
         T value)Sets the value of a socket option on a  DatagramSocketorMulticastSocket | 
| static <T> void | setOption(ServerSocket s,
         SocketOption<T> name,
         T value)Sets the value of a socket option on a  ServerSocket | 
| static <T> void | setOption(Socket s,
         SocketOption<T> name,
         T value)Sets the value of a socket option on a  Socket | 
| static Set<SocketOption<?>> | supportedOptions(Class<?> socketType)Returns a set of  SocketOptions supported by the
 given socket type. | 
public static <T> void setOption(Socket s, SocketOption<T> name, T value) throws IOException
Sockets - the socketname - The socket optionvalue - The value of the socket option. May be null for some
              options.UnsupportedOperationException - if the socket does not support
         the option.IllegalArgumentException - if the value is not valid for
         the option.IOException - if an I/O error occurs, or socket is closed.SecurityException - if a security manager is set and the
         caller does not have any required permission.NullPointerException - if name is nullStandardSocketOptionspublic static <T> T getOption(Socket s, SocketOption<T> name) throws IOException
Sockets - the socketname - The socket optionUnsupportedOperationException - if the socket does not support
         the option.IOException - if an I/O error occursSecurityException - if a security manager is set and the
         caller does not have any required permission.NullPointerException - if name is nullStandardSocketOptionspublic static <T> void setOption(ServerSocket s, SocketOption<T> name, T value) throws IOException
ServerSockets - the socketname - The socket optionvalue - The value of the socket option.UnsupportedOperationException - if the socket does not support
         the option.IllegalArgumentException - if the value is not valid for
         the option.IOException - if an I/O error occursNullPointerException - if name is nullSecurityException - if a security manager is set and the
         caller does not have any required permission.StandardSocketOptionspublic static <T> T getOption(ServerSocket s, SocketOption<T> name) throws IOException
ServerSockets - the socketname - The socket optionUnsupportedOperationException - if the socket does not support
         the option.IOException - if an I/O error occursNullPointerException - if name is nullSecurityException - if a security manager is set and the
         caller does not have any required permission.StandardSocketOptionspublic static <T> void setOption(DatagramSocket s, SocketOption<T> name, T value) throws IOException
DatagramSocket
 or MulticastSockets - the socketname - The socket optionvalue - The value of the socket option.UnsupportedOperationException - if the socket does not support
         the option.IllegalArgumentException - if the value is not valid for
         the option.IOException - if an I/O error occursNullPointerException - if name is nullSecurityException - if a security manager is set and the
         caller does not have any required permission.StandardSocketOptionspublic static <T> T getOption(DatagramSocket s, SocketOption<T> name) throws IOException
DatagramSocket or MulticastSockets - the socketname - The socket optionUnsupportedOperationException - if the socket does not support
         the option.IOException - if an I/O error occursNullPointerException - if name is nullSecurityException - if a security manager is set and the
         caller does not have any required permission.StandardSocketOptionspublic static Set<SocketOption<?>> supportedOptions(Class<?> socketType)
SocketOptions supported by the
 given socket type. This set may include standard options and also
 non standard extended options.socketType - the type of java.net socketIllegalArgumentException - if socketType is not a valid
         socket type from the java.net package.
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