diff options
Diffstat (limited to 'debian/htdig/htdig-3.2.0b6/htword/WordMeta.h')
| -rw-r--r-- | debian/htdig/htdig-3.2.0b6/htword/WordMeta.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/debian/htdig/htdig-3.2.0b6/htword/WordMeta.h b/debian/htdig/htdig-3.2.0b6/htword/WordMeta.h new file mode 100644 index 00000000..5bcc7f48 --- /dev/null +++ b/debian/htdig/htdig-3.2.0b6/htword/WordMeta.h @@ -0,0 +1,87 @@ +// +// WordMeta.h +// +// NAME +// +// abstract class to manage and use an inverted index file. +// +// SYNOPSIS +// +// #include <mifluz.h> +// +// WordContext context; +// +// WordMeta* words = context->Meta(); +// +// delete words; +// +// DESCRIPTION +// +// WordMeta is the <i>mifluz</i> equivalent of a database handler. Each +// WordMeta object is bound to an inverted index file and implements the +// operations to create it, fill it with word occurrences and search +// for an entry matching a given criterion. +// +// WordMeta is an abstract class and cannot be instanciated. +// The <b>Meta</b> method of the class WordContext will create +// an instance using the appropriate derived class, either WordMetaOne +// or WordMetaMulti. Refer to the corresponding manual pages for +// more information on their specific semantic. +// +// +// +// END +// +// Part of the ht://Dig package <http://www.htdig.org/> +// Copyright (c) 1999-2004 The ht://Dig Group +// For copyright details, see the file COPYING in your distribution +// or the GNU Library General Public License (LGPL) version 2 or later +// <http://www.gnu.org/copyleft/lgpl.html> +// +// $Id: WordMeta.h,v 1.4 2004/05/28 13:15:28 lha Exp $ +// + +#ifndef _WordMeta_h_ +#define _WordMeta_h_ + +#include <stdio.h> + +#include "htString.h" +#include "WordDB.h" + +class WordContext; +class WordLock; +class WordMetaImp; + +// +// Serial number range [1-2^32] +// +#define WORD_META_SERIAL_INVALID 0 + +#define WORD_META_SERIAL_WORD 0 +#define WORD_META_SERIAL_FILE 1 + +class WordMeta +{ + public: + WordMeta() { words = 0; db = 0; imp = 0; } + ~WordMeta(); + + int Initialize(WordList* words); + + int Open(); + int Close(); + + int Serial(int what, unsigned int& serial); + int GetSerial(int what, unsigned int& serial); + int SetSerial(int what, unsigned int serial); + + int Lock(const String& resource, WordLock*& lock); + int Unlock(const String& resource, WordLock*& lock); + + private: + WordList *words; + WordDB *db; + WordMetaImp *imp; +}; +#endif /* _WordMeta_h_ */ |