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## rice.p2p.multiring
Class MultiringNodeCollection

    java.lang.Object
      rice.p2p.multiring.MultiringNodeCollection

    public class MultiringNodeCollection

extends java.lang.Object

Version:
  $Id: MultiringNodeCollection.java 4476 2008-09-19 14:58:35Z jeffh $
Author:
  Alan Mislove

Field Summary
`int` | `BASE` The routing base for ring ids, in bytes
`protected java.util.Vector` | `nodes` The list of nodes in the collection

Constructor Summary
`MultiringNodeCollection(MultiringNode node, int BASE)` Constructor

Method Summary
`void` | `addNode(MultiringNode node)` This method allows other nodes to be dynamically added to the node collection.
`protected void` | `broadcastNewNode(MultiringNode node)` This method informs all of the existing nodes of the newly added node, and informs the newly added node of all of the existing nodes.
`protected int` | `getLength(RingId a)` This method returns the length of the given ringId
`protected int` | `getLengthOfSharedPrefix(RingId a, RingId b)` This method returns the length of the shared prefix, in bytes, of the two provided ringIds by comparing the ring values.
`protected MessageReceipt` | `route(RingId id, RawMessage message, java.lang.String application, DeliveryNotification deliverAckToMe, java.util.Map<java.lang.String,java.lang.Object> options)` This method returns the best next-hop to a given target, using ring hopping, if one exists.

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

Field Detail

### BASE

    public int BASE

  The routing base for ring ids, in bytes

### nodes

    protected java.util.Vector nodes

  The list of nodes in the collection

Constructor Detail

### MultiringNodeCollection

    public MultiringNodeCollection(MultiringNode node,
                                   int BASE)

  Constructor

  Parameters:
    `node` - The node to base this node off of

Method Detail

### addNode

    public void addNode(MultiringNode node)

  This method allows other nodes to be dynamically added to the node collection. Using this method, a node is added to the collection, and it is told of all of the other nodes in the collection. Similarly, all of the other nodes in the collection are told of this node.

  Parameters:
    `node` - The node to add to the collection

### broadcastNewNode

    protected void broadcastNewNode(MultiringNode node)

  This method informs all of the existing nodes of the newly added node, and informs the newly added node of all of the existing nodes.

  Parameters:
    `node` - The node that is being added

### route

    protected MessageReceipt route(RingId id,
                                   RawMessage message,
                                   java.lang.String application,
                                   DeliveryNotification deliverAckToMe,
                                   java.util.Map<java.lang.String,java.lang.Object> options)

  This method returns the best next-hop to a given target, using ring hopping, if one exists. Otherwise, if no local node in the collection is the next hop for the target, null is returned.

  Parameters:
    `id` - The target id of the message
    `message` - The message to be sent
    `hint` - A suggested hint

### getLength

    protected int getLength(RingId a)

  This method returns the length of the given ringId

  Parameters:
    `a` - The ring Id
  Returns:
    The number of shared bytes

### getLengthOfSharedPrefix

    protected int getLengthOfSharedPrefix(RingId a,
                                          RingId b)

  This method returns the length of the shared prefix, in bytes, of the two provided ringIds by comparing the ring values.

  Parameters:
    `a` - The first Id
    `b` - The second Id
  Returns:
    The number of shared bytes

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