DOMXPathEvaluator.hpp

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#ifndef DOMXPathEvaluator_HEADER_GUARD_
#define DOMXPathEvaluator_HEADER_GUARD_

/*
 * Copyright 2001-2004 The Apache Software Foundation.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <xercesc/util/XercesDefs.hpp>

XERCES_CPP_NAMESPACE_BEGIN

class DOMXPathNSResolver;
class DOMXPathExpression;
class DOMNode;

class CDOM_EXPORT DOMXPathEvaluator
{

protected:
    // -----------------------------------------------------------------------
    //  Hidden constructors
    // -----------------------------------------------------------------------
    DOMXPathEvaluator() {};

private:
    // -----------------------------------------------------------------------
    // Unimplemented constructors and operators
    // -----------------------------------------------------------------------
    DOMXPathEvaluator(const DOMXPathEvaluator &);
    DOMXPathEvaluator& operator = (const  DOMXPathEvaluator&);

public:
    // -----------------------------------------------------------------------
    //  All constructors are hidden, just the destructor is available
    // -----------------------------------------------------------------------
    virtual ~DOMXPathEvaluator() {};

    // -----------------------------------------------------------------------
    // Virtual DOMDocument interface
    // -----------------------------------------------------------------------

    virtual const DOMXPathExpression*    createExpression(const XMLCh *expression, const DOMXPathNSResolver *resolver) = 0;


    virtual const DOMXPathNSResolver*    createNSResolver(DOMNode *nodeResolver) = 0;


    virtual void* evaluate(const XMLCh *expression, DOMNode *contextNode, const DOMXPathNSResolver *resolver, 
                           unsigned short type, void* result) = 0;

};

XERCES_CPP_NAMESPACE_END

#endif

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