DOMNode.hpp

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#ifndef DOMNode_HEADER_GUARD_
#define DOMNode_HEADER_GUARD_

/*
 * Copyright 2001-2002,2004 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.
 */

/*
 * $Id: DOMNode.hpp 176294 2005-01-20 17:36:18Z cargilld $
 */

#include <xercesc/util/XercesDefs.hpp>

XERCES_CPP_NAMESPACE_BEGIN


class DOMDocument;
class DOMNamedNodeMap;
class DOMNodeList;
class DOMUserDataHandler;

class  CDOM_EXPORT DOMNode {
protected:
    // -----------------------------------------------------------------------
    //  Hidden constructors
    // -----------------------------------------------------------------------
    DOMNode() {}
    DOMNode(const DOMNode &) {}

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

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

    // -----------------------------------------------------------------------
    //  Class Types
    // -----------------------------------------------------------------------
    enum NodeType {
        ELEMENT_NODE                = 1,
        ATTRIBUTE_NODE              = 2,
        TEXT_NODE                   = 3,
        CDATA_SECTION_NODE          = 4,
        ENTITY_REFERENCE_NODE       = 5,
        ENTITY_NODE                 = 6,
        PROCESSING_INSTRUCTION_NODE = 7,
        COMMENT_NODE                = 8,
        DOCUMENT_NODE               = 9,
        DOCUMENT_TYPE_NODE          = 10,
        DOCUMENT_FRAGMENT_NODE      = 11,
        NOTATION_NODE               = 12
    };

    enum DOMTreePosition {
        TREE_POSITION_PRECEDING   = 0x01,
        TREE_POSITION_FOLLOWING   = 0x02,
        TREE_POSITION_ANCESTOR    = 0x04,
        TREE_POSITION_DESCENDANT  = 0x08,
        TREE_POSITION_EQUIVALENT  = 0x10,
        TREE_POSITION_SAME_NODE   = 0x20,
        TREE_POSITION_DISCONNECTED = 0x00
    };

    // -----------------------------------------------------------------------
    //  Virtual DOMNode interface
    // -----------------------------------------------------------------------
    // -----------------------------------------------------------------------
    //  Getter methods
    // -----------------------------------------------------------------------
    virtual const XMLCh *   getNodeName() const = 0;

    virtual const XMLCh *       getNodeValue() const = 0;

    virtual short           getNodeType() const = 0;

    virtual DOMNode        *getParentNode() const = 0;

    virtual DOMNodeList    *getChildNodes() const = 0;
    virtual DOMNode        *getFirstChild() const = 0;

    virtual DOMNode        *getLastChild() const = 0;

    virtual DOMNode        *getPreviousSibling() const = 0;

    virtual DOMNode        *getNextSibling() const = 0;

    virtual DOMNamedNodeMap  *getAttributes() const = 0;

    virtual DOMDocument      *getOwnerDocument() const = 0;

    // -----------------------------------------------------------------------
    //  Node methods
    // -----------------------------------------------------------------------
    virtual DOMNode        * cloneNode(bool deep) const = 0;

    virtual DOMNode       *insertBefore(DOMNode *newChild,
                                          DOMNode *refChild) = 0;


    virtual DOMNode  *replaceChild(DOMNode *newChild,
                                     DOMNode *oldChild) = 0;
    virtual DOMNode        *removeChild(DOMNode *oldChild) = 0;

    virtual DOMNode        *appendChild(DOMNode *newChild) = 0;

    // -----------------------------------------------------------------------
    //  Query methods
    // -----------------------------------------------------------------------
    virtual bool             hasChildNodes() const = 0;

    // -----------------------------------------------------------------------
    //  Setter methods
    // -----------------------------------------------------------------------
    virtual void              setNodeValue(const XMLCh  *nodeValue) = 0;

    virtual void              normalize() = 0;

    virtual bool              isSupported(const XMLCh *feature,
                                               const XMLCh *version) const = 0;

    virtual const XMLCh *         getNamespaceURI() const = 0;

    virtual const XMLCh *          getPrefix() const = 0;

    virtual const XMLCh *          getLocalName() const = 0;

    virtual void              setPrefix(const XMLCh * prefix) = 0;

    virtual bool              hasAttributes() const = 0;

    virtual bool              isSameNode(const DOMNode* other) const = 0;

    virtual bool              isEqualNode(const DOMNode* arg) const = 0;


    virtual void*             setUserData(const XMLCh* key,
                                          void* data,
                                          DOMUserDataHandler* handler) = 0;

    virtual void*             getUserData(const XMLCh* key) const = 0;


    virtual const XMLCh*           getBaseURI() const = 0;

    virtual short                  compareTreePosition(const DOMNode* other) const = 0;

    virtual const XMLCh*           getTextContent() const = 0;

    virtual void                   setTextContent(const XMLCh* textContent) = 0;

    virtual const XMLCh*           lookupNamespacePrefix(const XMLCh* namespaceURI,
                                                         bool useDefault) const = 0;

    virtual bool                   isDefaultNamespace(const XMLCh* namespaceURI) const = 0;

    virtual const XMLCh*           lookupNamespaceURI(const XMLCh* prefix) const  = 0;

    virtual DOMNode*               getInterface(const XMLCh* feature) = 0;

    // -----------------------------------------------------------------------
    //  Non-standard Extension
    // -----------------------------------------------------------------------
    virtual void              release() = 0;
#if defined(XML_DOMREFCOUNT_EXPERIMENTAL)
    // -----------------------------------------------------------------------
    //  Non-standard Extension
    // -----------------------------------------------------------------------
    virtual void decRefCount() {}

    // -----------------------------------------------------------------------
    //  Non-standard Extension
    // -----------------------------------------------------------------------
    virtual void incRefCount() {}
#endif
};

/***
 * Utilities macros for getting memory manager within DOM
***/
#define GET_OWNER_DOCUMENT(ptr)      \
        ((DOMDocumentImpl*)(ptr->getOwnerDocument()))

#define GET_DIRECT_MM(ptr)           \
        ptr ? ((DOMDocumentImpl*)ptr)->getMemoryManager() : XMLPlatformUtils::fgMemoryManager        

#define GET_INDIRECT_MM(ptr)                                                    \
        !ptr ? XMLPlatformUtils::fgMemoryManager :                              \
        GET_OWNER_DOCUMENT(ptr) ? GET_OWNER_DOCUMENT(ptr)->getMemoryManager() : \
        XMLPlatformUtils::fgMemoryManager

/***
 * For DOMNode and its derivatives
***/
#define GetDOMNodeMemoryManager GET_INDIRECT_MM(this)

XERCES_CPP_NAMESPACE_END

#endif

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