Package jp.gr.java_conf.dangan.util.lha

Class PatriciaTrieSearch

java.lang.Object
jp.gr.java_conf.dangan.util.lha.PatriciaTrieSearch
All Implemented Interfaces:
LzssSearchMethod
public class PatriciaTrieSearch extends Object implements LzssSearchMethod
PATRICIA Trie ???g?p???? LzssSearchMethod ???????B 
 -- revision history --
 $Log: PatriciaTrieSearch.java,v $
 Revision 1.2  2002/12/10 22:28:55  dangan
 [bug fix]
     put( DictionarySize * 2 )
     searchAndPut( DictionarySize * 2 ) ???????????￠?????????????C???B

 Revision 1.1  2002/12/04 00:00:00  dangan
 [change]
     LzssSearchMethod ???C???^?t?F?C?X???X???????????C???^?t?F?C?X???X?B
 [maintenance]
     ?\?[?X????

 Revision 1.0  2002/08/15 00:00:00  dangan
 add to version control
 [bug fix]
     contractNode ?? hashtable ???????A?????X?g???q???????Y?????￠???C???B
     ?z?? ?? PatriciaTrieSearch.ROOT_NODE(-1) ???A?N?Z?X?????￠???????C???B
 [maintenance]
     ?\?[?X????
     ?^?u?p?~
     ???C?Z???X?¶???C??
Version:
$Revision: 1.2 $
Author:
$Author: dangan $

  • Constructor Summary

    Constructors
    Constructor
    Description
    PatriciaTrieSearch(int DictionarySize, int MaxMatch, int Threshold, byte[] TextBuffer)
    ?R???X?g???N?^?B PATRICIA Trie ???g?p?????????@?\???\?z?????B

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    put(int position)
    position ?????n?????f?[?^?p?^???? PATRICIA Trie ???o?^?????B
    int
    putRequires()
    put() ?? LzssSearchMethod???f?[?^?? ?o?^???????????g?p???????f?[?^?????????B PatriciaTrieSearch ?????A???? MaxMatch ???????B
    int
    search(int position, int lastPutPos)
    PATRICIA Trie ???o?^???????f?[?^?p?^?????????? position ?????n?????f?[?^?p?^???? ?????????v?????????????????B
    int
    searchAndPut(int position)
    PATRICIA Trie ???o?^???????f?[?^?p?^?????? position ?????n?????f?[?^?p?^???? ?????????v???????????????????A ?????? position ?????n?????f?[?^?p?^???? PATRICIA Trie ???o?^?????B
    void
    slide()
    TextBuffer????position???????f?[?^?? ?O???????????????A?????????¶?? LzssSearchMethod ?????f?[?^?? TextBuffer?????f?[?^???????????￠?? ?????O???????????????????s???B

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • PatriciaTrieSearch

      public PatriciaTrieSearch(int DictionarySize, int MaxMatch, int Threshold, byte[] TextBuffer)
      ?R???X?g???N?^?B PATRICIA Trie ???g?p?????????@?\???\?z?????B
      Parameters:
      DictionarySize - ?????T?C?Y
      MaxMatch - ???????v??
      Threshold - ???k?A?????k?????l
      TextBuffer - LZSS???k???{?????????o?b?t?@

  • Method Details

    • put

      public void put(int position)
      position ?????n?????f?[?^?p?^???? PATRICIA Trie ???o?^?????B
      Specified by:
      put in interface LzssSearchMethod
      Parameters:
      position - TextBuffer?????f?[?^?p?^?????J?n???u

    • searchAndPut

      public int searchAndPut(int position)
      PATRICIA Trie ???o?^???????f?[?^?p?^?????? position ?????n?????f?[?^?p?^???? ?????????v???????????????????A ?????? position ?????n?????f?[?^?p?^???? PATRICIA Trie ???o?^?????B
      Specified by:
      searchAndPut in interface LzssSearchMethod
      Parameters:
      position - TextBuffer?????f?[?^?p?^?????J?n???u?B
      Returns:
      ???v?????????????????? LzssOutputStream.createSearchReturn ?????????¶?￢?????????v???u?????v???????????????l?A ???v???????????????????????? LzssOutputStream.NOMATCH?B
      See Also:

    • search

      public int search(int position, int lastPutPos)
      PATRICIA Trie ???o?^???????f?[?^?p?^?????????? position ?????n?????f?[?^?p?^???? ?????????v?????????????????B
      Specified by:
      search in interface LzssSearchMethod
      Parameters:
      position - TextBuffer?????f?[?^?p?^?????J?n???u?B
      lastPutPos - ???????o?^?????f?[?^?p?^?????J?n???u?B
      Returns:
      ???v?????????????????? LzssOutputStream.createSearchReturn ?????????¶?￢?????????v???u?????v???????????????l?A ???v???????????????????????? LzssOutputStream.NOMATCH?B
      See Also:

    • slide

      public void slide()
      TextBuffer????position???????f?[?^?? ?O???????????????A?????????¶?? LzssSearchMethod ?????f?[?^?? TextBuffer?????f?[?^???????????￠?? ?????O???????????????????s???B
      Specified by:
      slide in interface LzssSearchMethod

    • putRequires

      public int putRequires()
      put() ?? LzssSearchMethod???f?[?^?? ?o?^???????????g?p???????f?[?^?????????B PatriciaTrieSearch ?????A???? MaxMatch ???????B
      Specified by:
      putRequires in interface LzssSearchMethod
      Returns:
      ???? MaxMatch