00001 /* 00002 * Copyright (c) 2001, 2008, 00003 * DecisionSoft Limited. All rights reserved. 00004 * Copyright (c) 2004, 2015 Oracle and/or its affiliates. All rights reserved. 00005 * 00006 * 00007 * Licensed under the Apache License, Version 2.0 (the "License"); 00008 * you may not use this file except in compliance with the License. 00009 * You may obtain a copy of the License at 00010 * 00011 * http://www.apache.org/licenses/LICENSE-2.0 00012 * 00013 * Unless required by applicable law or agreed to in writing, software 00014 * distributed under the License is distributed on an "AS IS" BASIS, 00015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00016 * See the License for the specific language governing permissions and 00017 * limitations under the License. 00018 */ 00019 00020 #ifndef _EXTERNALFUNCTION_HPP 00021 #define _EXTERNALFUNCTION_HPP 00022 00023 #include <xqilla/framework/XQillaExport.hpp> 00024 00025 #include <xercesc/util/XMLUniDefs.hpp> 00026 00027 class Result; 00028 class PendingUpdateList; 00029 class DynamicContext; 00030 class XPath2MemoryManager; 00031 00032 class XQILLA_API ExternalFunction 00033 { 00034 public: 00035 class XQILLA_API Arguments 00036 { 00037 public: 00038 virtual ~Arguments() {} 00039 00041 virtual Result getArgument(size_t index, DynamicContext *context) const = 0; 00042 }; 00043 00044 virtual ~ExternalFunction() {} 00045 00046 const XMLCh *getURI() const { return uri_; } 00047 const XMLCh *getName() const { return name_; } 00048 const XMLCh *getURINameHash() const { return uriName_; } 00049 unsigned int getNumberOfArguments() const { return numArgs_; } 00050 00052 virtual Result execute(const Arguments *args, DynamicContext *context) const; 00054 virtual PendingUpdateList executeUpdate(const Arguments *args, DynamicContext *context) const; 00055 00056 protected: 00057 ExternalFunction(const XMLCh *uri, const XMLCh *name, unsigned int numberOfArgs, XPath2MemoryManager *mm); 00058 00059 const XMLCh *uri_; 00060 const XMLCh *name_; 00061 const XMLCh *uriName_; 00062 unsigned int numArgs_; 00063 }; 00064 00065 #endif 00066
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