/* * Copyright (c) 2000 World Wide Web Consortium, * (Massachusetts Institute of Technology, Institut National de * Recherche en Informatique et en Automatique, Keio University). All * Rights Reserved. This program is distributed under the W3C's Software * Intellectual Property License. This program is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY; without even * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR * PURPOSE. * See W3C License http://www.w3.org/Consortium/Legal/ for more details. */ package org.w3c.dom; /** * The <code>Document</code> interface represents the entire HTML or XML * document. Conceptually, it is the root of the document tree, and provides * the primary access to the document's data. * <p>Since elements, text nodes, comments, processing instructions, etc. * cannot exist outside the context of a <code>Document</code>, the * <code>Document</code> interface also contains the factory methods needed * to create these objects. The <code>Node</code> objects created have a * <code>ownerDocument</code> attribute which associates them with the * <code>Document</code> within whose context they were created. * <p>See also the <a href='http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113'>Document Object Model (DOM) Level 2 Core Specification</a>. */ public interface Document extends Node { /** * The Document Type Declaration (see <code>DocumentType</code>) * associated with this document. For HTML documents as well as XML * documents without a document type declaration this returns * <code>null</code>. The DOM Level 2 does not support editing the * Document Type Declaration. <code>docType</code> cannot be altered in * any way, including through the use of methods inherited from the * <code>Node</code> interface, such as <code>insertNode</code> or * <code>removeNode</code>. */ public DocumentType getDoctype(); /** * The <code>DOMImplementation</code> object that handles this document. A * DOM application may use objects from multiple implementations. */ public DOMImplementation getImplementation(); /** * This is a convenience attribute that allows direct access to the child * node that is the root element of the document. For HTML documents, * this is the element with the tagName "HTML". */ public Element getDocumentElement(); /** * Creates an element of the type specified. Note that the instance * returned implements the <code>Element</code> interface, so attributes * can be specified directly on the returned object. * <br>In addition, if there are known attributes with default values, * <code>Attr</code> nodes representing them are automatically created * and attached to the element. * <br>To create an element with a qualified name and namespace URI, use * the <code>createElementNS</code> method. * @param tagName The name of the element type to instantiate. For XML, * this is case-sensitive. For HTML, the <code>tagName</code> * parameter may be provided in any case, but it must be mapped to the * canonical uppercase form by the DOM implementation. * @return A new <code>Element</code> object with the * <code>nodeName</code> attribute set to <code>tagName</code>, and * <code>localName</code>, <code>prefix</code>, and * <code>namespaceURI</code> set to <code>null</code>. * @exception org.w3c.dom.DOMException * INVALID_CHARACTER_ERR: Raised if the specified name contains an * illegal character. */ public Element createElement(String tagName) throws DOMException; /** * Creates an empty <code>DocumentFragment</code> object. * @return A new <code>DocumentFragment</code>. */ public DocumentFragment createDocumentFragment(); /** * Creates a <code>Text</code> node given the specified string. * @param data The data for the node. * @return The new <code>Text</code> object. */ public Text createTextNode(String data); /** * Creates a <code>Comment</code> node given the specified string. * @param data The data for the node. * @return The new <code>Comment</code> object. */ public Comment createComment(String data); /** * Creates a <code>CDATASection</code> node whose value is the specified * string. * @param data The data for the <code>CDATASection</code> contents. * @return The new <code>CDATASection</code> object. * @exception org.w3c.dom.DOMException * NOT_SUPPORTED_ERR: Raised if this document is an HTML document. */ public CDATASection createCDATASection(String data) throws DOMException; /** * Creates a <code>ProcessingInstruction</code> node given the specified * name and data strings. * @param target The target part of the processing instruction. * @param data The data for the node. * @return The new <code>ProcessingInstruction</code> object. * @exception org.w3c.dom.DOMException * INVALID_CHARACTER_ERR: Raised if the specified target contains an * illegal character. * <br>NOT_SUPPORTED_ERR: Raised if this document is an HTML document. */ public ProcessingInstruction createProcessingInstruction(String target, String data) throws DOMException; /** * Creates an <code>Attr</code> of the given name. Note that the * <code>Attr</code> instance can then be set on an <code>Element</code> * using the <code>setAttributeNode</code> method. * <br>To create an attribute with a qualified name and namespace URI, use * the <code>createAttributeNS</code> method. * @param name The name of the attribute. * @return A new <code>Attr</code> object with the <code>nodeName</code> * attribute set to <code>name</code>, and <code>localName</code>, * <code>prefix</code>, and <code>namespaceURI</code> set to * <code>null</code>. The value of the attribute is the empty string. * @exception org.w3c.dom.DOMException * INVALID_CHARACTER_ERR: Raised if the specified name contains an * illegal character. */ public Attr createAttribute(String name) throws DOMException; /** * Creates an <code>EntityReference</code> object. In addition, if the * referenced entity is known, the child list of the * <code>EntityReference</code> node is made the same as that of the * corresponding <code>Entity</code> node.If any descendant of the * <code>Entity</code> node has an unbound namespace prefix, the * corresponding descendant of the created <code>EntityReference</code> * node is also unbound; (its <code>namespaceURI</code> is * <code>null</code>). The DOM Level 2 does not support any mechanism to * resolve namespace prefixes. * @param name The name of the entity to reference. * @return The new <code>EntityReference</code> object. * @exception org.w3c.dom.DOMException * INVALID_CHARACTER_ERR: Raised if the specified name contains an * illegal character. * <br>NOT_SUPPORTED_ERR: Raised if this document is an HTML document. */ public EntityReference createEntityReference(String name) throws DOMException; /** * Returns a <code>NodeList</code> of all the <code>Elements</code> with a * given tag name in the order in which they are encountered in a * preorder traversal of the <code>Document</code> tree. * @param tagname The name of the tag to match on. The special value "*" * matches all tags. * @return A new <code>NodeList</code> object containing all the matched * <code>Elements</code>. */ public NodeList getElementsByTagName(String tagname); /** * Imports a node from another document to this document. The returned * node has no parent; (<code>parentNode</code> is <code>null</code>). * The source node is not altered or removed from the original document; * this method creates a new copy of the source node. * <br>For all nodes, importing a node creates a node object owned by the * importing document, with attribute values identical to the source * node's <code>nodeName</code> and <code>nodeType</code>, plus the * attributes related to namespaces (<code>prefix</code>, * <code>localName</code>, and <code>namespaceURI</code>). As in the * <code>cloneNode</code> operation on a <code>Node</code>, the source * node is not altered. * <br>Additional information is copied as appropriate to the * <code>nodeType</code>, attempting to mirror the behavior expected if * a fragment of XML or HTML source was copied from one document to * another, recognizing that the two documents may have different DTDs * in the XML case. The following list describes the specifics for each * type of node. * <dl> * <dt>ATTRIBUTE_NODE</dt> * <dd>The <code>ownerElement</code> attribute * is set to <code>null</code> and the <code>specified</code> flag is * set to <code>true</code> on the generated <code>Attr</code>. The * descendants of the source <code>Attr</code> are recursively imported * and the resulting nodes reassembled to form the corresponding subtree. * Note that the <code>deep</code> parameter has no effect on * <code>Attr</code> nodes; they always carry their children with them * when imported.</dd> * <dt>DOCUMENT_FRAGMENT_NODE</dt> * <dd>If the <code>deep</code> option * was set to <code>true</code>, the descendants of the source element * are recursively imported and the resulting nodes reassembled to form * the corresponding subtree. Otherwise, this simply generates an empty * <code>DocumentFragment</code>.</dd> * <dt>DOCUMENT_NODE</dt> * <dd><code>Document</code> * nodes cannot be imported.</dd> * <dt>DOCUMENT_TYPE_NODE</dt> * <dd><code>DocumentType</code> * nodes cannot be imported.</dd> * <dt>ELEMENT_NODE</dt> * <dd>Specified attribute nodes of the * source element are imported, and the generated <code>Attr</code> * nodes are attached to the generated <code>Element</code>. Default * attributes are not copied, though if the document being imported into * defines default attributes for this element name, those are assigned. * If the <code>importNode</code> <code>deep</code> parameter was set to * <code>true</code>, the descendants of the source element are * recursively imported and the resulting nodes reassembled to form the * corresponding subtree.</dd> * <dt>ENTITY_NODE</dt> * <dd><code>Entity</code> nodes can be * imported, however in the current release of the DOM the * <code>DocumentType</code> is readonly. Ability to add these imported * nodes to a <code>DocumentType</code> will be considered for addition * to a future release of the DOM.On import, the <code>publicId</code>, * <code>systemId</code>, and <code>notationName</code> attributes are * copied. If a <code>deep</code> import is requested, the descendants * of the the source <code>Entity</code> are recursively imported and * the resulting nodes reassembled to form the corresponding subtree.</dd> * <dt> * ENTITY_REFERENCE_NODE</dt> * <dd>Only the <code>EntityReference</code> itself is * copied, even if a <code>deep</code> import is requested, since the * source and destination documents might have defined the entity * differently. If the document being imported into provides a * definition for this entity name, its value is assigned.</dd> * <dt>NOTATION_NODE</dt> * <dd> * <code>Notation</code> nodes can be imported, however in the current * release of the DOM the <code>DocumentType</code> is readonly. Ability * to add these imported nodes to a <code>DocumentType</code> will be * considered for addition to a future release of the DOM.On import, the * <code>publicId</code> and <code>systemId</code> attributes are copied. * Note that the <code>deep</code> parameter has no effect on * <code>Notation</code> nodes since they never have any children.</dd> * <dt> * PROCESSING_INSTRUCTION_NODE</dt> * <dd>The imported node copies its * <code>target</code> and <code>data</code> values from those of the * source node.</dd> * <dt>TEXT_NODE, CDATA_SECTION_NODE, COMMENT_NODE</dt> * <dd>These three * types of nodes inheriting from <code>CharacterData</code> copy their * <code>data</code> and <code>length</code> attributes from those of * the source node.</dd> * </dl> * @param importedNode The node to import. * @param deep If <code>true</code>, recursively import the subtree under * the specified node; if <code>false</code>, import only the node * itself, as explained above. This has no effect on <code>Attr</code> * , <code>EntityReference</code>, and <code>Notation</code> nodes. * @return The imported node that belongs to this <code>Document</code>. * @exception org.w3c.dom.DOMException * NOT_SUPPORTED_ERR: Raised if the type of node being imported is not * supported. * @since DOM Level 2 */ public Node importNode(Node importedNode, boolean deep) throws DOMException; /** * Creates an element of the given qualified name and namespace URI. * @param namespaceURI The namespace URI of the element to create. * @param qualifiedName The qualified name of the element type to * instantiate. * @return A new <code>Element</code> object with the following * attributes: * <table border='1'> * <tr> * <th>Attribute</th> * <th>Value</th> * </tr> * <tr> * <td valign='top' rowspan='1' colspan='1'><code>Node.nodeName</code></td> * <td valign='top' rowspan='1' colspan='1'> * <code>qualifiedName</code></td> * </tr> * <tr> * <td valign='top' rowspan='1' colspan='1'><code>Node.namespaceURI</code></td> * <td valign='top' rowspan='1' colspan='1'> * <code>namespaceURI</code></td> * </tr> * <tr> * <td valign='top' rowspan='1' colspan='1'><code>Node.prefix</code></td> * <td valign='top' rowspan='1' colspan='1'>prefix, extracted * from <code>qualifiedName</code>, or <code>null</code> if there is * no prefix</td> * </tr> * <tr> * <td valign='top' rowspan='1' colspan='1'><code>Node.localName</code></td> * <td valign='top' rowspan='1' colspan='1'>local name, extracted from * <code>qualifiedName</code></td> * </tr> * <tr> * <td valign='top' rowspan='1' colspan='1'><code>Element.tagName</code></td> * <td valign='top' rowspan='1' colspan='1'> * <code>qualifiedName</code></td> * </tr> * </table> * @exception org.w3c.dom.DOMException * INVALID_CHARACTER_ERR: Raised if the specified qualified name * contains an illegal character, per the XML 1.0 specification . * <br>NAMESPACE_ERR: Raised if the <code>qualifiedName</code> is * malformed per the Namespaces in XML specification, if the * <code>qualifiedName</code> has a prefix and the * <code>namespaceURI</code> is <code>null</code>, or 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" . * <br>NOT_SUPPORTED_ERR: Always thrown if the current document does not * support the <code>"XML"</code> feature, since namespaces were * defined by XML. * @since DOM Level 2 */ public Element createElementNS(String namespaceURI, String qualifiedName) throws DOMException; /** * Creates an attribute of the given qualified name and namespace URI. * @param namespaceURI The namespace URI of the attribute to create. * @param qualifiedName The qualified name of the attribute to * instantiate. * @return A new <code>Attr</code> object with the following attributes: * <table border='1'> * <tr> * <th> * Attribute</th> * <th>Value</th> * </tr> * <tr> * <td valign='top' rowspan='1' colspan='1'><code>Node.nodeName</code></td> * <td valign='top' rowspan='1' colspan='1'>qualifiedName</td> * </tr> * <tr> * <td valign='top' rowspan='1' colspan='1'> * <code>Node.namespaceURI</code></td> * <td valign='top' rowspan='1' colspan='1'><code>namespaceURI</code></td> * </tr> * <tr> * <td valign='top' rowspan='1' colspan='1'> * <code>Node.prefix</code></td> * <td valign='top' rowspan='1' colspan='1'>prefix, extracted from * <code>qualifiedName</code>, or <code>null</code> if there is no * prefix</td> * </tr> * <tr> * <td valign='top' rowspan='1' colspan='1'><code>Node.localName</code></td> * <td valign='top' rowspan='1' colspan='1'>local name, extracted from * <code>qualifiedName</code></td> * </tr> * <tr> * <td valign='top' rowspan='1' colspan='1'><code>Attr.name</code></td> * <td valign='top' rowspan='1' colspan='1'> * <code>qualifiedName</code></td> * </tr> * <tr> * <td valign='top' rowspan='1' colspan='1'><code>Node.nodeValue</code></td> * <td valign='top' rowspan='1' colspan='1'>the empty * string</td> * </tr> * </table> * @exception org.w3c.dom.DOMException * INVALID_CHARACTER_ERR: Raised if the specified qualified name * contains an illegal character, per the XML 1.0 specification . * <br>NAMESPACE_ERR: Raised if the <code>qualifiedName</code> is * malformed per the Namespaces in XML specification, if the * <code>qualifiedName</code> has a prefix and the * <code>namespaceURI</code> is <code>null</code>, 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", or if the * <code>qualifiedName</code>, or its prefix, is "xmlns" and the * <code>namespaceURI</code> is different from " * http://www.w3.org/2000/xmlns/". * <br>NOT_SUPPORTED_ERR: Always thrown if the current document does not * support the <code>"XML"</code> feature, since namespaces were * defined by XML. * @since DOM Level 2 */ public Attr createAttributeNS(String namespaceURI, String qualifiedName) throws DOMException; /** * Returns a <code>NodeList</code> of all the <code>Elements</code> with a * given local name and namespace URI in the order in which they are * encountered in a preorder traversal of the <code>Document</code> tree. * @param namespaceURI The namespace URI of the elements to match on. The * special value "*" matches all namespaces. * @param localName The local name of the elements to match on. The * special value "*" matches all local names. * @return A new <code>NodeList</code> object containing all the matched * <code>Elements</code>. * @since DOM Level 2 */ public NodeList getElementsByTagNameNS(String namespaceURI, String localName); /** * Returns the <code>Element</code> whose <code>ID</code> is given by * <code>elementId</code>. If no such element exists, returns * <code>null</code>. Behavior is not defined if more than one element * has this <code>ID</code>. The DOM implementation must have * information that says which attributes are of type ID. Attributes * with the name "ID" are not of type ID unless so defined. * Implementations that do not know whether attributes are of type ID or * not are expected to return <code>null</code>. * @param elementId The unique <code>id</code> value for an element. * @return The matching element. * @since DOM Level 2 */ public Element getElementById(String elementId); }