domelement.hpp

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     *   is known to have a default value, an attribute immediately appears
     *   containing the default value as well as the corresponding namespace URI,
     *   local name, and prefix when applicable.<BR>To remove an attribute by local
     *   name and namespace URI, use the <CODE>removeAttributeNS</CODE> method.
     * @param name The name of the attribute to remove.
     * @exception DOMException
     *   NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
     * @since DOM Level 1
     */
    virtual void              removeAttribute(const XMLCh *name) = 0;
    //@}

    /** @name Functions introduced in DOM Level 2. */
    //@{
    /**
     * Retrieves an attribute value by local name and namespace URI.
     *
     * @param namespaceURI The <em>namespace URI</em> of
     *    the attribute to retrieve.
     * @param localName The <em>local name</em> of the
     *    attribute to retrieve.
     * @return The <code>DOMAttr</code> value as a string, or an <CODE>null</CODE> if
     *    that attribute does not have a specified or default value.
     * @since DOM Level 2
     */
    virtual const XMLCh *         getAttributeNS(const XMLCh *namespaceURI,
                                                 const XMLCh *localName) const = 0;

    /**
     * Adds a new attribute. If an attribute with the same
     * local name and namespace URI is already present on the element, its prefix
     * is changed to be the prefix part of the <CODE>qualifiedName</CODE>, and
     * its value is changed to be the <CODE>value</CODE> parameter. This value is
     * a simple string, it is not parsed as it is being set. So any markup (such
     * as syntax to be recognized as an entity reference) is treated as literal
     * text, and needs to be appropriately escaped by the implementation when it
     * is written out. In order to assign an attribute value that contains entity
     * references, the user must create an <CODE>DOMAttr</CODE>
     * node plus any <CODE>DOMText</CODE> and <CODE>DOMEntityReference</CODE>
     * nodes, build the appropriate subtree, and use
     * <CODE>setAttributeNodeNS</CODE> or <CODE>setAttributeNode</CODE> to assign
     * it as the value of an attribute.
     *
     * @param namespaceURI The <em>namespace URI</em> of
     *    the attribute to create or alter.
     * @param qualifiedName The <em>qualified name</em> of the
     *    attribute to create or alter.
     * @param value The value to set in string form.
     * @exception DOMException
     *   INVALID_CHARACTER_ERR: Raised if the specified qualified name contains an
     *   illegal character.
     *   <br>NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
     * <br>
     *   NAMESPACE_ERR: Raised if the <CODE>qualifiedName</CODE> is
     *        malformed, if the <CODE>qualifiedName</CODE> has a prefix and the
     *        <CODE>namespaceURI</CODE> is <CODE>null</CODE> or an empty string,
     *        if the <CODE>qualifiedName</CODE> has a prefix that is "xml" and the
     *        <CODE>namespaceURI</CODE> is different from
     *        "http://www.w3.org/XML/1998/namespace", if the
     *        <CODE>qualifiedName</CODE> has a prefix that is "xmlns" and the
     *        <CODE>namespaceURI</CODE> is different from
     *        "http://www.w3.org/2000/xmlns/", or if the
     *        <CODE>qualifiedName</CODE> is "xmlns" and the
     *        <CODE>namespaceURI</CODE> is different from
     *        "http://www.w3.org/2000/xmlns/".
     * @since DOM Level 2
     */
    virtual void             setAttributeNS(const XMLCh *namespaceURI,
                                            const XMLCh *qualifiedName, const XMLCh *value) = 0;

    /**
     * Removes an attribute by local name and namespace URI. If the
     * removed attribute has a default value it is immediately replaced.
     * The replacing attribute has the same namespace URI and local name, as well as
     * the original prefix.
     *
     * @param namespaceURI The <em>namespace URI</em> of
     *    the attribute to remove.
     * @param localName The <em>local name</em> of the
     *    attribute to remove.
     * @exception DOMException
     *   NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
     * @since DOM Level 2
     */
    virtual void              removeAttributeNS(const XMLCh *namespaceURI,
                                                const XMLCh *localName) = 0;

    /**
     * Retrieves an <code>DOMAttr</code> node by local name and namespace URI.
     *
     * @param namespaceURI The <em>namespace URI</em> of
     *    the attribute to retrieve.
     * @param localName The <em>local name</em> of the
     *    attribute to retrieve.
     * @return The <code>DOMAttr</code> node with the specified attribute local
     *    name and namespace URI or <code>null</code> if there is no such attribute.
     * @since DOM Level 2
     */
    virtual DOMAttr      *  getAttributeNodeNS(const XMLCh *namespaceURI,
                                               const XMLCh *localName) const = 0;

    /**
     * Adds a new attribute.
     *
     * If an attribute with that local name and namespace URI is already present
     * in the element, it is replaced by the new one.
     *
     * @param newAttr The <code>DOMAttr</code> node to add to the attribute list.
     * @return If the <code>newAttr</code> attribute replaces an existing
     *    attribute with the same <em>local name</em> and <em>namespace URI</em>,
     *    the replaced <code>DOMAttr</code> node is
     *    returned, otherwise <code>null</code> is returned.
     * @exception DOMException
     *   WRONG_DOCUMENT_ERR: Raised if <code>newAttr</code> was created from a
     *   different document than the one that created the element.
     *   <br>NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
     *   <br>INUSE_ATTRIBUTE_ERR: Raised if <code>newAttr</code> is already an
     *   attribute of another <code>DOMElement</code> object. The DOM user must
     *   explicitly clone <code>DOMAttr</code> nodes to re-use them in other
     *   elements.
     * @since DOM Level 2
     */
    virtual DOMAttr      *  setAttributeNodeNS(DOMAttr *newAttr) = 0;

    /**
     * Returns a <code>DOMNodeList</code> of all the <code>DOMElement</code>s
     * with a given local name and namespace URI in the order in which they
     * would be encountered in a preorder traversal of the
     * <code>DOMDocument</code> tree, starting from this node.
     *
     * @param namespaceURI The <em>namespace URI</em> of
     *    the elements to match on. The special value "*" matches all
     *    namespaces.
     * @param localName The <em>local name</em> of the
     *    elements to match on. The special value "*" matches all local names.
     * @return A new <code>DOMNodeList</code> object containing all the matched
     *    <code>DOMElement</code>s.
     * @since DOM Level 2
     */
    virtual DOMNodeList   * getElementsByTagNameNS(const XMLCh *namespaceURI,
                                                   const XMLCh *localName) const = 0;

    /**
     * Returns <code>true</code> when an attribute with a given name is
     * specified on this element or has a default value, <code>false</code>
     * otherwise.
     * @param name The name of the attribute to look for.
     * @return <code>true</code> if an attribute with the given name is
     *   specified on this element or has a default value, <code>false</code>
     *    otherwise.
     * @since DOM Level 2
     */
    virtual bool         hasAttribute(const XMLCh *name) const = 0;

    /**
     * Returns <code>true</code> when an attribute with a given local name and
     * namespace URI is specified on this element or has a default value,
     * <code>false</code> otherwise. HTML-only DOM implementations do not
     * need to implement this method.
     * @param namespaceURI The namespace URI of the attribute to look for.
     * @param localName The local name of the attribute to look for.
     * @return <code>true</code> if an attribute with the given local name
     *   and namespace URI is specified or has a default value on this
     *   element, <code>false</code> otherwise.
     * @since DOM Level 2
     */
    virtual bool         hasAttributeNS(const XMLCh *namespaceURI,
                                        const XMLCh *localName) const = 0;
    //@}

    /** @name Functions introduced in DOM Level 3 */
    //@{

    /**
     * Declares the <code>DOMAttr</code> specified by name to be of type ID. If the
     * value of the specified <code>DOMAttr</code> is unique then this element node
     * can later be retrieved using getElementById on Document. Note, however,
     * that this simply affects this node and does not change any grammar that
     * may be in use.
     * To specify an <code>DOMAttr</code> by local name and namespace URI, use the
     * setIdAttributeNS method.
     * @param name The name of the <code>DOMAttr</code>.
     * @exception DOMException
     *    NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
     *    <br />NOT_FOUND_ERR: Raised if the specified node is not an <code>DOMAttr</code>
     * of this element.
     *
     * <p><b>"Experimental - subject to change"</b></p>
     *
     * @since DOM Level 3
     */
    virtual void setIdAttribute(const XMLCh* name) = 0;


    /**
     * Declares the <code>DOMAttr</code> specified by local name and namespace
     * URI to be of type ID. If the value of the specified <code>DOMAttr</code>
     * is unique then this <code>DOMElement</code> node can later be retrieved
     * using getElementById on <code>DOMDocument</code>. Note, however, that
     * this simply affects this node and does not change any grammar that may
     * be in use.
     * @param namespaceURI The namespace URI of the <code>DOMAttr</code>.
     * @param localName The local name of the <code>DOMAttr</code>.
     * @exception  DOMException
     *   NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
     *   <br />NOT_FOUND_ERR: Raised if the specified node is not an <code>DOMAttr</code> of this element.
     *
     * <p><b>"Experimental - subject to change"</b></p>
     *
     * @since DOM Level 3
     */
    virtual void setIdAttributeNS(const XMLCh* namespaceURI, const XMLCh* localName) = 0;



    /**
     * Declares the <code>DOMAttr</code> specified by node to be of type ID.
     * If the value of the specified <code>DOMAttr</code> is unique then this
     * <code>DOMElement</code> node can later be retrieved using getElementById
     * on <code>DOMDocument</code>. Note, however, that this simply affects this
     * node and does not change any grammar that may be in use.
     * @param idAttr The <code>DOMAttr</code> node.
     * @exception  DOMException
     *   NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
     *   <br />NOT_FOUND_ERR: Raised if the specified node is not an <code>DOMAttr</code> of this element.
     *
     * <p><b>"Experimental - subject to change"</b></p>
     *
     * @since DOM Level 3
     */
    virtual void setIdAttributeNode(const DOMAttr *idAttr) = 0;



    /**
     * Returns the type information associated with this element.
     *
     * <p><b>"Experimental - subject to change"</b></p>
     *
     * @return the <code>DOMTypeInfo</code> associated with this element
     * @since DOM level 3
     */
    virtual const DOMTypeInfo* getTypeInfo() const = 0;

    //@}

};

XERCES_CPP_NAMESPACE_END

#endif