XQuilla/include/xqilla/fulltext/FTSelection.hpp

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/*
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* Copyright (c) 2001-2008
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* DecisionSoft Limited. All rights reserved.
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* Copyright (c) 2004-2008
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* Oracle. All rights reserved.
*
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* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
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* $Id: FTSelection.hpp,v 1.8 2008/01/08 18:47:30 jpcs Exp $
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*/
#ifndef _FTSELECTION_HPP
#define _FTSELECTION_HPP
#include <xqilla/framework/XQillaExport.hpp>
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#include <xqilla/ast/StaticAnalysis.hpp>
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#include <xqilla/ast/LocationInfo.hpp>
#include <xqilla/fulltext/AllMatches.hpp>
#include <xqilla/fulltext/TokenStore.hpp>
#include <xqilla/framework/XPath2MemoryManager.hpp>
#include <vector>
class DynamicContext;
class StaticContext;
class XQILLA_API FTContext
{
public:
FTContext(const Tokenizer *tok, const TokenStore::Ptr &tStore, DynamicContext *cont)
: queryPos(0), tokenizer(tok), tokenStore(tStore), context(cont) {}
unsigned int queryPos;
const Tokenizer *tokenizer;
TokenStore::Ptr tokenStore;
DynamicContext *context;
};
class XQILLA_API FTSelection : public LocationInfo
{
public:
/// The type of the FTSelection node
enum Type {
OR,
AND,
MILD_NOT,
UNARY_NOT,
WORDS,
WORD,
ORDER,
DISTANCE,
DISTANCE_LITERAL,
SCOPE,
CONTENT,
WINDOW,
WINDOW_LITERAL
};
virtual ~FTSelection() {}
Type getType() const { return type_; }
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virtual const StaticAnalysis &getStaticAnalysis() const { return src_; }
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virtual FTSelection *staticResolution(StaticContext *context) = 0;
virtual FTSelection *staticTyping(StaticContext *context) = 0;
virtual FTSelection *optimize(FTContext *context, bool execute) const = 0;
virtual AllMatches::Ptr execute(FTContext *ftcontext) const = 0;
protected:
FTSelection(Type type, XPath2MemoryManager *memMgr)
: src_(memMgr), type_(type), memMgr_(memMgr) {}
XPath2MemoryManager *getMemoryManager() const { return memMgr_; }
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StaticAnalysis src_;
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private:
Type type_;
XPath2MemoryManager *memMgr_;
};
typedef std::vector<FTSelection*,XQillaAllocator<FTSelection*> > VectorOfFTSelections;
#endif