103 lines
2.9 KiB
C++
103 lines
2.9 KiB
C++
/*
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* Copyright (c) 2001-2006
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* DecisionSoft Limited. All rights reserved.
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* Copyright (c) 2004-2006
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* Progress Software Corporation. All rights reserved.
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* Copyright (c) 2004-2006
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* Oracle. All rights reserved.
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*
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* See the file LICENSE for redistribution information.
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*
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* $Id: XQPredicate.hpp,v 1.6 2007/08/27 19:45:22 gmfeinberg Exp $
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*/
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#ifndef _XQPREDICATE_HPP
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#define _XQPREDICATE_HPP
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#include <xqilla/ast/ASTNodeImpl.hpp>
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class XQPredicate;
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class VectorOfPredicates : public std::vector<XQPredicate*,XQillaAllocator<XQPredicate*> >
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{
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public:
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VectorOfPredicates(XERCES_CPP_NAMESPACE_QUALIFIER MemoryManager *mm)
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: std::vector<XQPredicate*,XQillaAllocator<XQPredicate*> >(XQillaAllocator<XQPredicate*>(mm)) {}
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};
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class XQILLA_API XQPredicate : public ASTNodeImpl
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{
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public:
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XQPredicate(ASTNode *predicate, XPath2MemoryManager* memMgr);
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XQPredicate(ASTNode *expr, ASTNode *predicate, XPath2MemoryManager* memMgr);
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virtual Result createResult(DynamicContext* context, int flags=0) const;
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virtual ASTNode* staticResolution(StaticContext *context);
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virtual ASTNode *staticTyping(StaticContext *context);
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const ASTNode *getExpression() const { return expr_; }
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void setExpression(ASTNode *expr) { expr_ = expr; }
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const ASTNode *getPredicate() const { return predicate_; }
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void setPredicate(ASTNode *pred) { predicate_ = pred; }
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bool isReverse() const { return reverse_; }
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void setReverse(bool reverse) { reverse_ = reverse; }
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static ASTNode *addPredicates(ASTNode *expr, VectorOfPredicates *preds);
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static ASTNode *addReversePredicates(ASTNode *expr, VectorOfPredicates *preds);
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protected:
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ASTNode *expr_;
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ASTNode *predicate_;
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bool reverse_;
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};
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class XQILLA_API PredicateFilterResult : public ResultImpl
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{
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public:
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PredicateFilterResult(const Result &parent, const ASTNode *pred, unsigned int contextSize);
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Item::Ptr next(DynamicContext *context);
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void skip();
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std::string asString(DynamicContext *context, int indent) const;
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private:
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bool todo_;
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Result parent_;
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const ASTNode *pred_;
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unsigned int contextPos_;
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unsigned int contextSize_;
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Item::Ptr first_;
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Item::Ptr second_;
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};
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class NonNumericPredicateFilterResult : public ResultImpl
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{
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public:
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NonNumericPredicateFilterResult(const Result &parent, const ASTNode *pred, unsigned int contextSize);
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Item::Ptr next(DynamicContext *context);
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void skip();
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std::string asString(DynamicContext *context, int indent) const;
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private:
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bool todo_;
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Result parent_;
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const ASTNode *pred_;
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unsigned int contextPos_;
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unsigned int contextSize_;
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};
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class NumericPredicateFilterResult : public ResultImpl
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{
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public:
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NumericPredicateFilterResult(const Result &parent, const ASTNode *pred, unsigned int contextSize);
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Item::Ptr next(DynamicContext *context);
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void skip();
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std::string asString(DynamicContext *context, int indent) const;
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private:
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bool todo_;
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Result parent_;
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const ASTNode *pred_;
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unsigned int contextSize_;
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};
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#endif
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