v1.0

include/xqilla/functions/FunctionDistinctValues.hpp

@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2001-2006
+ *     DecisionSoft Limited. All rights reserved.
+ * Copyright (c) 2004-2006
+ *     Progress Software Corporation. All rights reserved.
+ * Copyright (c) 2004-2006
+ *     Oracle. All rights reserved.
+ *
+ * See the file LICENSE for redistribution information.
+ *
+ * $Id: FunctionDistinctValues.hpp,v 1.11 2006/11/01 16:37:13 jpcs Exp $
+ */
+
+/*
+
+  Distinct-values function
+  
+*/
+
+#ifndef _FUNCTIONDISTINCTVALUES_HPP
+#define _FUNCTIONDISTINCTVALUES_HPP
+
+#include <xqilla/framework/XQillaExport.hpp>
+
+#include <xqilla/ast/XQFunction.hpp>
+
+// Distinct values is not really an aggregate function, but since its behaviour is so
+// similar (in terms of sequence validation) we will extend from it.
+class XQILLA_API FunctionDistinctValues : public XQFunction
+{
+public:
+  static const XMLCh name[];
+  static const unsigned int minArgs;
+  static const unsigned int maxArgs;
+
+  FunctionDistinctValues(const VectorOfASTNodes &args, XPath2MemoryManager* memMgr);
+  
+  virtual ASTNode* staticResolution(StaticContext *context);
+  virtual ASTNode *staticTyping(StaticContext *context);
+  virtual Result createResult(DynamicContext* context, int flags=0) const;
+};
+
+#endif // _FUNCTIONDISTINCTVALUES_HPP