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

Class HashAndChainedListSearch

java.lang.Object
jp.gr.java_conf.dangan.util.lha.HashAndChainedListSearch
All Implemented Interfaces:
LzssSearchMethod
public class HashAndChainedListSearch extends Object implements LzssSearchMethod
?n?b?V?????P?????A?????X?g???g???????￢???????? LzssSearchMethod?B
???????????????±???????????￢?????s?????￠???????A ?K?????????v???????????±?????o???????????????￠?B
 -- revision history --
 $Log: HashAndChainedListSearch.java,v $
 Revision 1.0  2002/08/05 00:00:00  dangan
 add to version control
 [change]
     LzssSearchMethod ???C???^?t?F?C?X???X???????????C???^?t?F?C?X???X
 [improvement]
     ar940528 ?? TEST5???? ???????????X?B
 [maintenance]
     ?\?[?X????
     ?^?u?p?~
     ???C?Z???X?¶???C??
Version:
$Revision: 1.0 $
Author:
$Author: dangan $

  • Constructor Summary

    Constructors
    Constructor
    Description
    HashAndChainedListSearch(int DictionarySize, int MaxMatch, int Threshold, byte[] TextBuffer)
    ?n?b?V?????A?????X?g???g?p???? LzssSearchMethod ???\?z?????B
    ?n?b?V?????????T?????s???????????l?????f?t?H???g?????????g?p???????B
    HashAndChainedListSearch(int DictionarySize, int MaxMatch, int Threshold, byte[] TextBuffer, int SearchLimitCount)
    ?n?b?V?????A?????X?g???g?p???? LzssSearchMethod ???\?z?????B
    ?n?b?V???????????f?t?H???g?????????g?p???????B
    HashAndChainedListSearch(int DictionarySize, int MaxMatch, int Threshold, byte[] TextBuffer, String HashMethodClassName)
    ?n?b?V?????A?????X?g???g?p???? LzssSearchMethod ???\?z?????B
    ?T?????s???????????l?????f?t?H???g?????????g?p???????B
    HashAndChainedListSearch(int DictionarySize, int MaxMatch, int Threshold, byte[] TextBuffer, String HashMethodClassName, int SearchLimitCount)
    ?n?b?V?????A?????X?g???g?p???? LzssSearchMethod ???\?z?????B

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    put(int position)
    position ?????n?????f?[?^?p?^???? ?n?b?V?????A?????X?g?????￢???????@?\???o?^?????B
    int
    putRequires()
    put() ?? LzssSearchMethod???f?[?^?? ?o?^???????????g?p???????f?[?^?????????B HashAndChainedListSearch ?????A ???????g?p?????￠?? HashMethod ???????? hash() ?????????K?v???????f?[?^?? ( HashMethod.hashRequires() ???????l ) ???????B
    int
    search(int position, int lastPutPos)
    ?n?b?V?????A?????X?g???g?p?????????@?\???o?^?????? ?f?[?^?p?^?????????? position ?????n?????f?[?^?p?^???? ?????????v?????????????????B
    int
    searchAndPut(int position)
    ?n?b?V?????A?????X?g?????￢???????@?\???o?^?????? ?f?[?^?p?^?????? position ?????n?????f?[?^?p?^???? ?????????v???????????????????A ?????? position ?????n?????f?[?^?p?^???? ?n?b?V?????A?????X?g?????￢???????@?\???o?^?????B
    int
    searchAndPut(int position, int[] matchposs)
    ???????￠ LZSS ???k?????????I?????????????? searchAndPut()?B ?????????v?? 3, ???v???u 4 ?? ???v?? 4, ???v???u 1024 ???? ???v?? 3, ???v???u 4 + ?????k1?¶?? ???????o???r?b?g???? ???????????????????B???????????????????????????????v?????? position?????????￠???v???u???????????B
    void
    slide()
    TextBuffer????position???????f?[?^?? ?O???????????????A?????????¶?? SearchMethod???? ?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

    • HashAndChainedListSearch

      public HashAndChainedListSearch(int DictionarySize, int MaxMatch, int Threshold, byte[] TextBuffer)
      ?n?b?V?????A?????X?g???g?p???? LzssSearchMethod ???\?z?????B
      ?n?b?V?????????T?????s???????????l?????f?t?H???g?????????g?p???????B
      Parameters:
      DictionarySize - ?????T?C?Y
      MaxMatch - ???????v??
      Threshold - ???k?A?????k?????l
      TextBuffer - LZSS???k???{?????????o?b?t?@

    • HashAndChainedListSearch

      public HashAndChainedListSearch(int DictionarySize, int MaxMatch, int Threshold, byte[] TextBuffer, int SearchLimitCount)
      ?n?b?V?????A?????X?g???g?p???? LzssSearchMethod ???\?z?????B
      ?n?b?V???????????f?t?H???g?????????g?p???????B
      Parameters:
      DictionarySize - ?????T?C?Y
      MaxMatch - ???????v??
      Threshold - ???k?A?????k?????l
      TextBuffer - LZSS???k???{?????????o?b?t?@
      SearchLimitCount - ?T?????s??????????
      Throws:
      IllegalArgumentException - SearchLimitCount ??0??????????

    • HashAndChainedListSearch

      public HashAndChainedListSearch(int DictionarySize, int MaxMatch, int Threshold, byte[] TextBuffer, String HashMethodClassName)
      ?n?b?V?????A?????X?g???g?p???? LzssSearchMethod ???\?z?????B
      ?T?????s???????????l?????f?t?H???g?????????g?p???????B
      Parameters:
      DictionarySize - ?????T?C?Y
      MaxMatch - ???????v??
      Threshold - ???k?A?????k?????l
      TextBuffer - LZSS???k???{?????????o?b?t?@
      HashMethodClassName - Hash???????????????N???X??
      Throws:
      NoClassDefFoundError - HashMethodClassName ???^?????????N???X?? ???????????￠?????B
      InstantiationError - HashMethodClassName ???^?????????N???X?? abstract class ???????????C???X?^???X???¶?￢???????￠?????B
      NoSuchMethodError - HashMethodClassName ???^?????????N???X?? ?R???X?g???N?^ HashMethod( byte[] )?????????￠????

    • HashAndChainedListSearch

      public HashAndChainedListSearch(int DictionarySize, int MaxMatch, int Threshold, byte[] TextBuffer, String HashMethodClassName, int SearchLimitCount)
      ?n?b?V?????A?????X?g???g?p???? LzssSearchMethod ???\?z?????B
      Parameters:
      DictionarySize - ?????T?C?Y
      MaxMatch - ???????v??
      Threshold - ???k?A?????k?????l
      TextBuffer - LZSS???k???{?????????o?b?t?@
      HashMethodClassName - Hash???????????????N???X??
      SearchLimitCount - ?T?????s??????????
      Throws:
      IllegalArgumentException - SearchLimitCount ??0??????????
      NoClassDefFoundError - HashMethodClassName ???^?????????N???X?? ???????????￠?????B
      InstantiationError - HashMethodClassName ???^?????????N???X?? abstract class ???????????C???X?^???X???¶?￢???????￠?????B
      NoSuchMethodError - HashMethodClassName ???^?????????N???X?? ?R???X?g???N?^ HashMethod( byte[] )?????????￠????

  • Method Details

    • put

      public void put(int position)
      position ?????n?????f?[?^?p?^???? ?n?b?V?????A?????X?g?????￢???????@?\???o?^?????B
      Specified by:
      put in interface LzssSearchMethod
      Parameters:
      position - TextBuffer?????f?[?^?p?^?????J?n???u

    • searchAndPut

      public int searchAndPut(int position)
      ?n?b?V?????A?????X?g?????￢???????@?\???o?^?????? ?f?[?^?p?^?????? position ?????n?????f?[?^?p?^???? ?????????v???????????????????A ?????? position ?????n?????f?[?^?p?^???? ?n?b?V?????A?????X?g?????￢???????@?\???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)
      ?n?b?V?????A?????X?g???g?p?????????@?\???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?????????¶?? SearchMethod???? ?f?[?^?? TextBuffer?????f?[?^???????????￠?????? ?O???????????????????s???B
      Specified by:
      slide in interface LzssSearchMethod

    • putRequires

      public int putRequires()
      put() ?? LzssSearchMethod???f?[?^?? ?o?^???????????g?p???????f?[?^?????????B HashAndChainedListSearch ?????A ???????g?p?????￠?? HashMethod ???????? hash() ?????????K?v???????f?[?^?? ( HashMethod.hashRequires() ???????l ) ???????B
      Specified by:
      putRequires in interface LzssSearchMethod
      Returns:
      ???????g?p?????￠?? HashMethod ???????? hash() ?????????K?v???????f?[?^??

    • searchAndPut

      public int searchAndPut(int position, int[] matchposs)
      ???????￠ LZSS ???k?????????I?????????????? searchAndPut()?B ?????????v?? 3, ???v???u 4 ?? ???v?? 4, ???v???u 1024 ???? ???v?? 3, ???v???u 4 + ?????k1?¶?? ???????o???r?b?g???? ???????????????????B???????????????????????????????v?????? position?????????￠???v???u???????????B
      Parameters:
      position - ???????????f?[?^?p?^?????J?n???u
      matchposs - ???v???u?????????i?[???????????????z??
      matchpos[0] ???? ???v???? Threshold ?????v???u???A
      matchpos[1] ???? ???v???? Threshold + 1 ?????v???u???i?[???????B
      ???v?????????????????????????? LzssOutputStream.NOMATCH ???i?[???????B
      Returns:
      ???v?????????????????? LzssOutputStream.createSearchReturn ???¶?￢?????? SearchReturn ???????????B
      ???v?????????????￠?????? LzssOutputStream.NOMATCH ???????????B