org.jboss.xnio.channels
Interface UdpChannel

All Superinterfaces:

BoundChannel<SocketAddress>, Channel, Closeable, Configurable, MultipointDatagramChannel<SocketAddress>, MultipointMessageChannel<SocketAddress>, MultipointReadableMessageChannel<SocketAddress>, MultipointWritableMessageChannel<SocketAddress>, SuspendableChannel, SuspendableReadChannel, SuspendableWriteChannel

public interface UdpChannel
extends MultipointDatagramChannel<SocketAddress>

A UDP channel. UDP channels are multipoint datagram channels which always use a SocketAddress and additionally support multicast registration.

Nested Class Summary

static interface

UdpChannel.Key A registration key for a multicast group.

Method Summary

UdpChannel.Key	join(InetAddress group, NetworkInterface iface) Join a multicast group to begin receiving all datagrams sent to the group.
UdpChannel.Key	join(InetAddress group, NetworkInterface iface, InetAddress source) Join a multicast group to begin receiving all datagrams sent to the group from a given source address.

Methods inherited from interface org.jboss.xnio.channels.MultipointReadableMessageChannel

receive

Methods inherited from interface org.jboss.xnio.channels.MultipointWritableMessageChannel

send, send, send

Methods inherited from interface org.jboss.xnio.channels.SuspendableReadChannel

awaitReadable, awaitReadable, resumeReads, shutdownReads, suspendReads

Methods inherited from interface org.jboss.xnio.channels.SuspendableWriteChannel

awaitWritable, awaitWritable, resumeWrites, shutdownWrites, suspendWrites

Methods inherited from interface java.nio.channels.Channel

close, isOpen

Methods inherited from interface org.jboss.xnio.channels.Configurable

getOption, getOptions, setOption

Methods inherited from interface org.jboss.xnio.channels.BoundChannel

getLocalAddress

Method Detail

join

UdpChannel.Key join(InetAddress group,
                    NetworkInterface iface)
                    throws IOException

Join a multicast group to begin receiving all datagrams sent to the group. A multicast channel may join several multicast groups, including the same group on more than one interface. An implementation may impose a limit on the number of groups that may be joined at the same time.

Parameters:

group - the multicast address to join

iface - the network interface to join on

Returns:

a new key

Throws:

IOException - if an I/O error occurs

IllegalStateException - if the channel is already a member of the group on this interface

IllegalArgumentException - if the group parameters is not a multicast address, or is an unsupported address type

SecurityException - if a security manager is set, and its SecurityManager.checkMulticast(java.net.InetAddress) method denies access to the group

join

UdpChannel.Key join(InetAddress group,
                    NetworkInterface iface,
                    InetAddress source)
                    throws IOException

Join a multicast group to begin receiving all datagrams sent to the group from a given source address. A multicast channel may join several multicast groups, including the same group on more than one interface. An implementation may impose a limit on the number of groups that may be joined at the same time.

Parameters:

group - the multicast address to join

iface - the network interface to join on

source - the source address to listen for

Returns:

a new key

Throws:

IOException - if an I/O error occurs

IllegalStateException - if the channel is already a member of the group on this interface

IllegalArgumentException - if the group parameters is not a multicast address, or is an unsupported address type

SecurityException - if a security manager is set, and its SecurityManager.checkMulticast(java.net.InetAddress) method denies access to the group

UnsupportedOperationException - if the implementation does not support source filtering