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| java.lang.Object
 java.net.DatagramSocket
java.net.MulticastSocket
| MulticastSocket | | public class MulticastSocket extends DatagramSocket (Code) | | This class models a multicast socket for sending & receiving datagram packets
to a multicast group.
See Also: DatagramSocket |
| Constructor Summary | |
| public | MulticastSocket()
Constructs a multicast socket, bound to any available port on the
localhost. | | public | MulticastSocket(int aPort)
Answers a multicast socket, bound to the nominated port on the localhost. | | public | MulticastSocket(SocketAddress localAddr)
Constructs a MulticastSocket bound to the host/port specified by the
SocketAddress, or an unbound DatagramSocket if the SocketAddress is null. |
| SO_REUSEPORT | | final static int SO_REUSEPORT(Code) | | |
| MulticastSocket | | public MulticastSocket() throws IOException(Code) | | Constructs a multicast socket, bound to any available port on the
localhost.
throws:
IOException - if a problem occurs creating or binding the socket |
| MulticastSocket | | public MulticastSocket(int aPort) throws IOException(Code) | | Answers a multicast socket, bound to the nominated port on the localhost.
Parameters:
aPort - the port to bind on the localhost
throws:
IOException - if a problem occurs creating or binding the socket |
| MulticastSocket | | public MulticastSocket(SocketAddress localAddr) throws IOException(Code) | | Constructs a MulticastSocket bound to the host/port specified by the
SocketAddress, or an unbound DatagramSocket if the SocketAddress is null.
Parameters:
localAddr - the local machine address and port to bind to
throws:
IllegalArgumentException - if the SocketAddress is not supported
throws:
IOException - if a problem occurs creating or binding the socket
since:
1.4 |
| getInterface | | public InetAddress getInterface() throws SocketException(Code) | | Answer the network address used by the socket. This is useful on
multi-homed machines.
java.net.InetAddress the network address
exception:
java.net.SocketException - The exception thrown while getting the address |
| getLoopbackMode | | public boolean getLoopbackMode() throws SocketException(Code) | | Get the state of the IP_MULTICAST_LOOP socket option.
true if the IP_MULTICAST_LOOP is enabled,false otherwise.
throws:
SocketException - if the socket is closed or the option is invalid.
since:
1.4 |
| getNetworkInterface | | public NetworkInterface getNetworkInterface() throws SocketException(Code) | | Answer the network interface used by the socket. This is useful on
multi-homed machines.
java.net.NetworkInterface the network address
exception:
java.net.SocketException - The exception thrown while getting the address
since:
1.4 |
| getTimeToLive | | public int getTimeToLive() throws IOException(Code) | | Answer the time-to-live (TTL) for multicast packets sent on this socket.
java.net.InetAddress
exception:
IOException - The exception description. |
| joinGroup | | public void joinGroup(InetAddress groupAddr) throws IOException(Code) | | Add this socket to the multicast group. A socket must joint a group
before data may be received. A socket may be a member of multiple groups
but may join any group once.
Parameters:
groupAddr - the multicast group to be joined
exception:
IOException - may be thrown while joining a group |
| joinGroup | | public void joinGroup(SocketAddress groupAddress, NetworkInterface netInterface) throws IOException(Code) | | Add this socket to the multicast group. A socket must join a group before
data may be received. A socket may be a member of multiple groups but may
join any group once.
Parameters:
groupAddress - the multicast group to be joined
Parameters:
netInterface - the network interface on which the addresses should be dropped
exception:
IOException - will be thrown if address is not a multicast address
exception:
java.lang.SecurityException - will be thrown if caller is not authorized to join group
exception:
java.lang.IllegalArgumentException - will be through if groupAddr is null
since:
1.4 |
| send | | public void send(DatagramPacket pack, byte ttl) throws IOException(Code) | | Send the packet on this socket. The packet must satisfy the security
policy before it may be sent.
Parameters:
pack - the DatagramPacket to send
Parameters:
ttl - the TTL setting for this transmission, overriding the socketdefault
exception:
IOException - If a send error occurs. |
| setInterface | | public void setInterface(InetAddress addr) throws SocketException(Code) | | Set the network address used by the socket. This is useful on multi-homed
machines.
Parameters:
addr - java.net.InetAddress the interface network address
exception:
java.net.SocketException - the exception may be thrown while setting the address |
| setLoopbackMode | | public void setLoopbackMode(boolean loop) throws SocketException(Code) | | Set the IP_MULTICAST_LOOP socket option.
Parameters:
loop - the socket IP_MULTICAST_LOOP option setting
throws:
SocketException - if the socket is closed or the option is invalid.
since:
1.4 |
| setNetworkInterface | | public void setNetworkInterface(NetworkInterface netInterface) throws SocketException(Code) | | Set the network interface used by the socket. This is useful on
multi-homed machines.
Parameters:
netInterface - NetworkInterface the interface to be used
exception:
java.net.SocketException - the exception may be thrown while setting the address
since:
1.4 |
| setTimeToLive | | public void setTimeToLive(int ttl) throws IOException(Code) | | Set the time-to-live (TTL) for multicast packets sent on this socket.
Parameters:
ttl - the time-to-live, 0<=ttl<= 255
exception:
IOException - The exception thrown while setting the TTL |
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