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From "Alan Mehio (JIRA)" <j...@apache.org>
Subject [jira] Updated: (COLLECTIONS-225) Contribution: A Patricia Tree
Date Fri, 21 Sep 2007 10:32:50 GMT

     [ https://issues.apache.org/jira/browse/COLLECTIONS-225?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alan Mehio updated COLLECTIONS-225:
-----------------------------------

    Description: 
We (Roger Kapsi & I) would like to contribute a Patricia tree.  The tree implements the
Map & SortedMap interface, meaning it can be used as a replacement for any arbitrary map.
 It also implementes a new 'Trie' interface, allowing other implementations or other varieties
of Tries to be added.  The tree is currently written for generics, but that can easily be
removed.  We have used the tree as the structure backing a route table in a new Kademlia-based
DHT, as the structure backing an IP filter (storing IP addresses & IP ranges, allowing
retrieval/searching in nanoseconds), and have tested it with Strings by storing all of 'hamlet'
and comparing it against a TreeSet.  The tree is also ready to implement NavigableMap whenever
Java 1.6 becomes available.

I will attach the files in an update to this issue

  was:
We (Roger Kapsi & I) would like to contribute a Patricia tree.  The tree implements the
Map & SortedMap interface, meaning it can be used as a replacement for any arbitrary map.
 It also implementes a new 'Trie' interface, allowing other implementations or other varieties
of Tries to be added.  The tree is currently written for generics, but that can easily be
removed.  We have used the tree as the structure backing a route table in a new Kademlia-based
DHT, as the structure backing an IP filter (storing IP addresses & IP ranges, allowing
retrieval/searching in nanoseconds), and have tested it with Strings by storing all of 'hamlet'
and comparing it against a TreeSet.  The tree is also ready to implement NavigableMap whenever
Java 1.6 becomes available.

I will attach the files in an update to this issue.


Roger, Sam;
Can you please supply the below classes 

EmptyIterator
BaseTestCase

I am trying to run the test case class "PatriciaTrieTest" 

Regards,
Alan Mehio
London, UK


> Contribution: A Patricia Tree
> -----------------------------
>
>                 Key: COLLECTIONS-225
>                 URL: https://issues.apache.org/jira/browse/COLLECTIONS-225
>             Project: Commons Collections
>          Issue Type: New Feature
>          Components: Map
>            Reporter: Sam Berlin
>         Attachments: pat.zip
>
>
> We (Roger Kapsi & I) would like to contribute a Patricia tree.  The tree implements
the Map & SortedMap interface, meaning it can be used as a replacement for any arbitrary
map.  It also implementes a new 'Trie' interface, allowing other implementations or other
varieties of Tries to be added.  The tree is currently written for generics, but that can
easily be removed.  We have used the tree as the structure backing a route table in a new
Kademlia-based DHT, as the structure backing an IP filter (storing IP addresses & IP ranges,
allowing retrieval/searching in nanoseconds), and have tested it with Strings by storing all
of 'hamlet' and comparing it against a TreeSet.  The tree is also ready to implement NavigableMap
whenever Java 1.6 becomes available.
> I will attach the files in an update to this issue

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