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Class java.net.DatagramSocketImpl 

java.lang.Object
   |
   +----java.net.DatagramSocketImpl
public class DatagramSocketImpl
extends Object
implements SocketOptions
Abstract datagram and multicast socket implementation base class.

Variable Index

o fd
The file descriptor object
o localPort

Constructor Index

o DatagramSocketImpl()

Method Index

o bind(int, InetAddress)
Binds a datagram socket to a local port and address.
o close()
Close the socket.
o create()
Creates a datagram socket
o getFileDescriptor()
Get the datagram socket file descriptor
o getLocalPort()
Get the local port.
o getOption(int)
Fetch the value of an option.
o getTTL()
Retrieve the TTL (time-to-live) option.
o join(InetAddress)
Join the multicast group.
o leave(InetAddress)
Leave the multicast group.
o peek(InetAddress)
Peek at the packet to see who it is from.
o receive(DatagramPacket)
Receive the datagram packet.
o send(DatagramPacket)
Sends a datagram packet.
o setOption(int, Object)
Enable/disable the option specified by optID.
o setTTL(byte)
Set the TTL (time-to-live) option.

Variables

o localPort 
Properties Inheritable 
   localPort=int
o fd 
Properties Inheritable 
    fd=FileDescriptor
The file descriptor object

Constructors

o DatagramSocketImpl 
    method DatagramSocketImpl() public

Methods

o create 
    method create()  Inheritable abstract    Signals SocketException
Creates a datagram socket

o bind 
    method bind(lport=int, -
                laddr=InetAddress)  Inheritable abstract    Signals SocketException
Binds a datagram socket to a local port and address.

o send 
    method send(p=DatagramPacket)  Inheritable abstract    Signals IOException
Sends a datagram packet. The packet contains the data and the destination address to send the packet to.

Parameters:
packet - to be sent.
o peek 
    method peek(i=InetAddress) returns int Inheritable abstract    Signals IOException
Peek at the packet to see who it is from.

Parameters:
return - the address which the packet came from.
o receive 
    method receive(p=DatagramPacket)  Inheritable abstract    Signals IOException
Receive the datagram packet.

Parameters:
Packet - Received.
o setTTL 
    method setTTL(ttl=byte)  Inheritable abstract    Signals IOException
Set the TTL (time-to-live) option.

Parameters:
TTL - to be set.
o getTTL 
    method getTTL() returns byte Inheritable abstract    Signals IOException
Retrieve the TTL (time-to-live) option.

o join 
    method join(inetaddr=InetAddress)  Inheritable abstract    Signals IOException
Join the multicast group.

Parameters:
multicast - address to join.
o leave 
    method leave(inetaddr=InetAddress)  Inheritable abstract    Signals IOException
Leave the multicast group.

Parameters:
multicast - address to leave.
o close 
    method close()  Inheritable abstract
Close the socket.

o getLocalPort 
    method getLocalPort() returns int Inheritable
Get the local port.

o getFileDescriptor 
    method getFileDescriptor() returns FileDescriptor Inheritable
Get the datagram socket file descriptor 

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