75 lines
2.3 KiB
C++
75 lines
2.3 KiB
C++
/*
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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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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* $Id: OrderByTuple.hpp,v 1.4 2008/01/08 18:47:29 jpcs Exp $
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*/
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#ifndef ORDERBYTUPLE_HPP
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#define ORDERBYTUPLE_HPP
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#include <xqilla/ast/TupleNode.hpp>
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#include <xqilla/ast/StaticAnalysis.hpp>
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class ASTNode;
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class Collation;
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class XQILLA_API OrderByTuple : public TupleNode
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{
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public:
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enum Modifiers {
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ASCENDING = 0x0,
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DESCENDING = 0x1,
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EMPTY_GREATEST = 0x0,
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EMPTY_LEAST = 0x2,
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STABLE = 0x0,
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UNSTABLE = 0x4,
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DESCENDING_EMPTY_LEAST = DESCENDING | EMPTY_LEAST,
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DESCENDING_UNSTABLE = DESCENDING | UNSTABLE,
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EMPTY_LEAST_UNSTABLE = EMPTY_LEAST | UNSTABLE,
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DESCENDING_EMPTY_LEAST_UNSTABLE = DESCENDING | EMPTY_LEAST | UNSTABLE
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};
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OrderByTuple(TupleNode *parent, ASTNode *expr, int modifiers, Collation *collation, XPath2MemoryManager *mm);
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ASTNode *getExpression() const { return expr_; }
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void setExpression(ASTNode *expr) { expr_ = expr; }
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Modifiers getModifiers() const { return modifiers_; }
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Collation *getCollation() const { return collation_; }
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void setUnstable() { modifiers_ = (Modifiers)(modifiers_ | UNSTABLE); }
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const StaticAnalysis &getUsedSRC() const { return usedSrc_; }
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virtual TupleNode *staticResolution(StaticContext *context);
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virtual TupleNode *staticTypingSetup(StaticContext *context);
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virtual TupleNode *staticTypingTeardown(StaticContext *context, StaticAnalysis &usedSrc);
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virtual TupleResult::Ptr createResult(DynamicContext* context) const;
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private:
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ASTNode *expr_;
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Modifiers modifiers_;
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Collation *collation_;
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StaticAnalysis usedSrc_;
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};
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#endif
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