v1.1.0

include/xqilla/functions/ExternalFunction.hpp

@@ -0,0 +1,60 @@
+/*
+ * 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: ExternalFunction.hpp,v 1.3 2007/06/18 19:46:58 jpcs Exp $
+ */
+
+#ifndef _EXTERNALFUNCTION_HPP
+#define _EXTERNALFUNCTION_HPP
+
+#include <xqilla/framework/XQillaExport.hpp>
+
+#include <xercesc/util/XMLUniDefs.hpp>
+
+class Result;
+class PendingUpdateList;
+class DynamicContext;
+class XPath2MemoryManager;
+
+class XQILLA_API ExternalFunction
+{
+public:
+  class XQILLA_API Arguments
+  {
+  public:
+    virtual ~Arguments() {}
+
+    /// Return the result for the argument index specified. Arguments indexes are zero based.
+    virtual Result getArgument(unsigned int index, DynamicContext *context) const = 0;
+  };
+
+  virtual ~ExternalFunction() {}
+
+  const XMLCh *getURI() const { return uri_; }
+  const XMLCh *getName() const { return name_; }
+  const XMLCh *getURINameHash() const { return uriName_; }
+  unsigned int getNumberOfArguments() const { return numArgs_; }
+
+  /// Execute the (non-updating) function
+  virtual Result execute(const Arguments *args, DynamicContext *context) const;
+  /// Execute the updating function
+  virtual PendingUpdateList executeUpdate(const Arguments *args, DynamicContext *context) const;
+
+protected:
+  ExternalFunction(const XMLCh *uri, const XMLCh *name, unsigned int numberOfArgs, XPath2MemoryManager *mm);
+
+  const XMLCh *uri_;
+  const XMLCh *name_;
+  const XMLCh *uriName_;
+  unsigned int numArgs_;
+};
+
+#endif
+