XSECXPathNodeList.hpp

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/*
 * Copyright 2002-2005 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.
 */

/*
 * XSEC
 *
 * XSECXPathNodeList := A structure to hold node lists from XPath 
 * evaluations
 *
 * Author(s): Berin Lautenbach
 *
 * $Id: XSECXPathNodeList.hpp,v 1.9 2005/02/03 13:53:54 milan Exp $
 *
 */

#ifndef XSECXPATHNODELIST_INCLUDE
#define XSECXPATHNODELIST_INCLUDE

// XSEC
#include <xsec/framework/XSECDefs.hpp>

// Xerces

XSEC_DECLARE_XERCES_CLASS(DOMNode);

#define _XSEC_NODELIST_DEFAULT_SIZE 100

class DSIG_EXPORT XSECXPathNodeList {

public:


    XSECXPathNodeList(unsigned int initialSize = _XSEC_NODELIST_DEFAULT_SIZE);

    XSECXPathNodeList(const XSECXPathNodeList &other);

    ~XSECXPathNodeList();

    XSECXPathNodeList & operator= (const XSECXPathNodeList & toCopy);





    void addNode(const XERCES_CPP_NAMESPACE_QUALIFIER DOMNode *n);

    void removeNode(const XERCES_CPP_NAMESPACE_QUALIFIER DOMNode *n);

    void clear(void);



    bool hasNode(const XERCES_CPP_NAMESPACE_QUALIFIER DOMNode *n);

    const XERCES_CPP_NAMESPACE_QUALIFIER DOMNode * getFirstNode(void);

    const XERCES_CPP_NAMESPACE_QUALIFIER DOMNode *getNextNode(void);



    void intersect(const XSECXPathNodeList &toIntersect);


private:

    // Internal functions
    unsigned int findNodeIndex(const XERCES_CPP_NAMESPACE_QUALIFIER DOMNode * n);

    const XERCES_CPP_NAMESPACE_QUALIFIER DOMNode    
                                    ** mp_elts;         // The current list of elements

    unsigned int                    m_size;             // How big is the current array
    unsigned int                    m_num;              // Number of elements in the array

    unsigned int                    m_current;          // current point in list for getNextNode
};



#endif /* XSECXPATHNODELIST_INCLUDE */

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