68 lines
2 KiB
C++
68 lines
2 KiB
C++
/*
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* Copyright (c) 2001-2008
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* DecisionSoft Limited. All rights reserved.
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* Copyright (c) 2004-2008
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* Oracle. All rights reserved.
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*
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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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*
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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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* $Id: ExternalFunction.hpp,v 1.6 2008/01/08 18:47:30 jpcs Exp $
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*/
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#ifndef _EXTERNALFUNCTION_HPP
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#define _EXTERNALFUNCTION_HPP
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#include <xqilla/framework/XQillaExport.hpp>
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#include <xercesc/util/XMLUniDefs.hpp>
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class Result;
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class PendingUpdateList;
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class DynamicContext;
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class XPath2MemoryManager;
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class XQILLA_API ExternalFunction
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{
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public:
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class XQILLA_API Arguments
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{
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public:
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virtual ~Arguments() {}
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/// Return the result for the argument index specified. Arguments indexes are zero based.
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virtual Result getArgument(size_t index, DynamicContext *context) const = 0;
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};
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virtual ~ExternalFunction() {}
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const XMLCh *getURI() const { return uri_; }
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const XMLCh *getName() const { return name_; }
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const XMLCh *getURINameHash() const { return uriName_; }
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unsigned int getNumberOfArguments() const { return numArgs_; }
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/// Execute the (non-updating) function
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virtual Result execute(const Arguments *args, DynamicContext *context) const;
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/// Execute the updating function
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virtual PendingUpdateList executeUpdate(const Arguments *args, DynamicContext *context) const;
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protected:
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ExternalFunction(const XMLCh *uri, const XMLCh *name, unsigned int numberOfArgs, XPath2MemoryManager *mm);
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const XMLCh *uri_;
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const XMLCh *name_;
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const XMLCh *uriName_;
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unsigned int numArgs_;
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};
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#endif
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