Constants (River-Internet vtrunk API Documentation)

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java.lang.Object
- net.jini.discovery.Constants

```
public class Constants
extends Object
```
A holder class for constants that pertain to the unicast and multicast discovery protocols.
The following properties if set, provide support for IPv6:
net.jini.discovery.IPv6=TRUE
net.jini.discovery.GLOBAL_ANNOUNCE=TRUE
Note that support for global announcement must be specifically set to be enabled. There is no support for global request, for obvious reasons.

Author:: Sun Microsystems, Inc.

Field Summary

Fields
Modifier and Type	Field and Description
`static short`	`discoveryPort` The port for both unicast and multicast boot requests.
`static Boolean`	`GLOBAL_ANNOUNCE` If true and IPv6 is also true, the announcement protocol will propagate over global networks.
`static Boolean`	`IPv6` If true IPv6 has been enabled.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static InetAddress`	`getAnnouncementAddress()` Return the address of the multicast group over which the multicast announcement protocol takes place.
`static InetAddress`	`getRequestAddress()` Return the address of the multicast group over which the multicast request protocol takes place.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - IPv6
```
public static final Boolean IPv6
```
    If true IPv6 has been enabled.
  - GLOBAL_ANNOUNCE
```
public static final Boolean GLOBAL_ANNOUNCE
```
    If true and IPv6 is also true, the announcement protocol will propagate over global networks.
  - discoveryPort
```
public static final short discoveryPort
```
    The port for both unicast and multicast boot requests.
    
    See Also:
    
    Constant Field Values
- Method Detail
  - getRequestAddress
```
public static final InetAddress getRequestAddress()
                                           throws UnknownHostException
```
    Return the address of the multicast group over which the multicast request protocol takes place.
    
    Returns:
    
    the address of the multicast group over which the multicast request protocol takes place
    
    Throws:
    
    UnknownHostException - if no IP address for the host could be found.
  - getAnnouncementAddress
```
public static final InetAddress getAnnouncementAddress()
                                                throws UnknownHostException
```
    Return the address of the multicast group over which the multicast announcement protocol takes place.
    
    Returns:
    
    the address of the multicast group over which the multicast announcement protocol takes place.
    
    Throws:
    
    UnknownHostException - if no IP address for the host could be found.

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Copyright 2007-2013, multiple authors.
Licensed under the Apache License, Version 2.0, see the NOTICE file for attributions.