43 lines
1.2 KiB
C++
43 lines
1.2 KiB
C++
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/*
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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: FunctionSum.hpp,v 1.12 2006/11/01 16:37:13 jpcs Exp $
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*/
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/*
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* Sum function -- takes a sequence, returns a value of the same type as the items which is
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* the sum of the values.
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*/
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#ifndef _FUNCTIONSUM_HPP
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#define _FUNCTIONSUM_HPP
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#include <xqilla/ast/AggregateFunction.hpp>
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/** Sum operator function*/
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class XQILLA_API FunctionSum : public AggregateFunction
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{
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public:
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static const XMLCh name[];
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static const unsigned int minArgs;
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static const unsigned int maxArgs;
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FunctionSum(const VectorOfASTNodes &args, XPath2MemoryManager* memMgr);
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ASTNode* staticResolution(StaticContext *context);
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virtual ASTNode *staticTyping(StaticContext *context);
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/** Takes a list of nodes and sums their values */
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Sequence collapseTreeInternal(DynamicContext* context, int flags=0) const;
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static Item::Ptr sum(const Sequence &sequence, DynamicContext *context, const LocationInfo *info);
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};
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#endif // _FUNCTIONSUM_HPP
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