2020-02-17 21:05:20 +00:00
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/*
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2020-02-17 21:13:50 +00:00
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* Copyright (c) 2001-2008
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2020-02-17 21:05:20 +00:00
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* DecisionSoft Limited. All rights reserved.
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2020-02-17 21:13:50 +00:00
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* Copyright (c) 2004-2008
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2020-02-17 21:05:20 +00:00
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* Oracle. All rights reserved.
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*
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2020-02-17 21:12:51 +00:00
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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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2020-02-17 21:05:20 +00:00
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*
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2020-02-17 21:12:51 +00:00
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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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2020-02-17 21:17:06 +00:00
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* $Id: Union.hpp 659 2008-10-06 00:11:22Z jpcs $
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2020-02-17 21:05:20 +00:00
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*/
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/*
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Union function -- takes two sequences, and merge them
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*/
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#ifndef _UNION_HPP
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#define _UNION_HPP
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#include <xqilla/framework/XQillaExport.hpp>
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#include <xqilla/ast/XQNav.hpp>
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#include <xqilla/ast/XQOperator.hpp>
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#include <xqilla/runtime/ResultImpl.hpp>
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/** Union operator function*/
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class XQILLA_API Union : public XQOperator
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{
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public:
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static const XMLCh name[];
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Union(const VectorOfASTNodes &args, XPath2MemoryManager* memMgr);
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ASTNode* staticResolution(StaticContext *context);
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virtual ASTNode *staticTypingImpl(StaticContext *context);
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Result createResult(DynamicContext* context, int flags=0) const;
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private:
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class UnionResult : public ResultImpl
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{
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public:
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UnionResult(const Union *op, int flags);
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Item::Ptr next(DynamicContext *context);
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private:
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const Union *_op;
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unsigned int _flags;
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unsigned int _index;
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Result _result;
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};
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bool sortAdded_;
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};
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#endif
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