BooleanClause.h

00001 //
00002 // Copyright(C) 2005--2006 Institute of Computing Tech, Chinese Academy of Sciences. 
00003 // All rights reserved.
00004 // This file is part of FirteX (www.firtex.org)
00005 //
00006 // Use of the FirteX is subject to the terms of the software license set forth in 
00007 // the LICENSE file included with this software, and also available at
00008 // http://www.firtex.org/license.html
00009 //
00010 // Author       : 郭瑞杰(GuoRuijie)
00011 // Email        : ruijieguo@software.ict.ac.cn,ruijieguo@gmail.com
00012 // Created      : 2006/5/9
00013 //
00014 #ifndef _BOOLEANCLAUSE_H
00015 #define _BOOLEANCLAUSE_H
00016 
00017 
00018 namespace firtex
00019 {
00020         namespace search
00021         {
00022                 class CQuery;
00023                 class CBooleanClause
00024                 {
00025                 public:
00026                         CBooleanClause(void):m_pQuery(0),m_bRequired(true),m_bProhibited(false)
00027                         {
00028                         }
00029                         CBooleanClause(CQuery* pQuery,bool req,bool pro):m_bRequired(req),m_bProhibited(pro)
00030                         {
00031                                 m_pQuery = pQuery->clone();                             
00032                         }
00033                         CBooleanClause(const CBooleanClause& clone)
00034                         {
00035                                 if(clone.m_pQuery)
00036                                         m_pQuery = clone.m_pQuery->clone();
00037                                 else m_pQuery = NULL;
00038                                 m_bRequired = clone.m_bRequired;
00039                                 m_bProhibited = clone.m_bProhibited;
00040                         }
00041                         ~CBooleanClause(void)
00042                         {
00043                                 if(m_pQuery)
00044                                 {
00045                                         delete m_pQuery;                                        
00046                                         m_pQuery = NULL;
00047                                 }
00048                         }
00049                 public:
00050                         CBooleanClause* clone(){return new CBooleanClause(*this);}
00051 
00052                         CQuery* getQuery(){return m_pQuery;}
00053                         bool    isRequired(){return m_bRequired;}
00054                         bool    isProhibited(){return m_bProhibited;}
00055                         void    setRequired(bool rq=true){m_bRequired = rq;}
00056                         void    setProhibited(bool p=true){m_bProhibited = p;}
00057                 protected:
00058                         CQuery*         m_pQuery;                       
00059                         bool            m_bRequired;            //必须出现
00060                         bool            m_bProhibited;          //不能出现
00061                 };
00062         }
00063 }
00064 
00065 #endif