Xerces-C++: DOMXPathEvaluator.hpp Source File

00001 #ifndef DOMXPathEvaluator_HEADER_GUARD_
00002 #define DOMXPathEvaluator_HEADER_GUARD_
00003 
00004 /*
00005  * Copyright 2001-2004 The Apache Software Foundation.
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 #include <xercesc/util/XercesDefs.hpp>
00021 
00022 XERCES_CPP_NAMESPACE_BEGIN
00023 
00024 class DOMXPathNSResolver;
00025 class DOMXPathExpression;
00026 class DOMNode;
00027 
00041 class  DOMXPathEvaluator
00042 {
00043 
00044 protected:
00045     // -----------------------------------------------------------------------
00046     //  Hidden constructors
00047     // -----------------------------------------------------------------------
00050     DOMXPathEvaluator() {};
00052 
00053 private:
00054     // -----------------------------------------------------------------------
00055     // Unimplemented constructors and operators
00056     // -----------------------------------------------------------------------
00059     DOMXPathEvaluator(const DOMXPathEvaluator &);
00060     DOMXPathEvaluator& operator = (const  DOMXPathEvaluator&);
00062 
00063 public:
00064     // -----------------------------------------------------------------------
00065     //  All constructors are hidden, just the destructor is available
00066     // -----------------------------------------------------------------------
00073     virtual ~DOMXPathEvaluator() {};
00075 
00076     // -----------------------------------------------------------------------
00077     // Virtual DOMDocument interface
00078     // -----------------------------------------------------------------------
00081 
00102     virtual const DOMXPathExpression*    createExpression(const XMLCh *expression, const DOMXPathNSResolver *resolver) = 0;
00103 
00104 
00116     virtual const DOMXPathNSResolver*    createNSResolver(DOMNode *nodeResolver) = 0;
00117 
00118 
00163     virtual void* evaluate(const XMLCh *expression, DOMNode *contextNode, const DOMXPathNSResolver *resolver, 
00164                            unsigned short type, void* result) = 0;
00165 
00167 };
00168 
00169 XERCES_CPP_NAMESPACE_END
00170 
00171 #endif