verinec.netsim.firewall.util.tables
Class StatefulTablesSingleton

java.lang.Object
  java.util.Dictionary
      java.util.Hashtable
          verinec.netsim.firewall.util.tables.StatefulTablesSingleton

All Implemented Interfaces:

Serializable, Cloneable, Map

public class StatefulTablesSingleton
extends Hashtable

This class is used to ensure that each node has one and only one Stateful Inspection Hash Table.

Version:

$Revision: 825 $

Author:

jason.hug@unifr.ch

See Also:

Serialized Form

Field Summary

private static StatefulTablesSingleton

instance Keeps each node's Stateful Inspection Hash Table in a Hash Table itself.

Constructor Summary

private

StatefulTablesSingleton() private constructor, prevents direct instantiation of this class.

Method Summary

static StatefulTablesSingleton	getInstance() get handle to the singleton
static StatefulInspection	getTable(String hostname) Gets a stateful table belonging to the node's hostname

Methods inherited from class java.util.Hashtable

clear, clone, contains, containsKey, containsValue, elements, entrySet, equals, get, hashCode, isEmpty, keys, keySet, put, putAll, rehash, remove, size, toString, values

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

instance

private static StatefulTablesSingleton instance

Keeps each node's Stateful Inspection Hash Table in a Hash Table itself.

Constructor Detail

StatefulTablesSingleton

private StatefulTablesSingleton()

private constructor, prevents direct instantiation of this class.

Method Detail

getInstance

public static StatefulTablesSingleton getInstance()

get handle to the singleton

Returns:

the singleton instance of this class.

getTable

public static StatefulInspection getTable(String hostname)

Gets a stateful table belonging to the node's hostname

Parameters:

hostname - Hostname of the node from which the stateful table should be retrieved.

Returns:

StatefulTable of the node. null if no entry exists.