43 lines
1.2 KiB
C++
43 lines
1.2 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: FunctionDistinctValues.hpp,v 1.11 2006/11/01 16:37:13 jpcs Exp $
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*/
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/*
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Distinct-values function
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*/
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#ifndef _FUNCTIONDISTINCTVALUES_HPP
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#define _FUNCTIONDISTINCTVALUES_HPP
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#include <xqilla/framework/XQillaExport.hpp>
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#include <xqilla/ast/XQFunction.hpp>
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// Distinct values is not really an aggregate function, but since its behaviour is so
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// similar (in terms of sequence validation) we will extend from it.
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class XQILLA_API FunctionDistinctValues : public XQFunction
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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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FunctionDistinctValues(const VectorOfASTNodes &args, XPath2MemoryManager* memMgr);
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virtual ASTNode* staticResolution(StaticContext *context);
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virtual ASTNode *staticTyping(StaticContext *context);
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virtual Result createResult(DynamicContext* context, int flags=0) const;
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};
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#endif // _FUNCTIONDISTINCTVALUES_HPP
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