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ElementImpl.javaAPI DocJava SE 5 API40737Fri Aug 26 14:55:44 BST 2005com.sun.org.apache.xerces.internal.dom

ElementImpl

public class ElementImpl extends ParentNode implements Element
Elements represent most of the "markup" and structure of the document. They contain both the data for the element itself (element name and attributes), and any contained nodes, including document text (as children).

Elements may have Attributes associated with them; the API for this is defined in Node, but the function is implemented here. In general, XML applications should retrive Attributes as Nodes, since they may contain entity references and hence be a fairly complex sub-tree. HTML users will be dealing with simple string values, and convenience methods are provided to work in terms of Strings.

ElementImpl does not support Namespaces. ElementNSImpl, which inherits from it, does.

see
ElementNSImpl
author
Arnaud Le Hors, IBM
author
Joe Kesselman, IBM
author
Andy Clark, IBM
author
Ralf Pfeiffer, IBM
version
$Id: ElementImpl.java,v 1.64 2004/01/18 17:39:36 elena Exp $
since
PR-DOM-Level-1-19980818.

Fields Summary
static final long
serialVersionUID
Serialization version.
protected String
name
Element name.
protected AttributeMap
attributes
Attributes.
transient TypeInfo
type
DOM3: type information
Constructors Summary
public ElementImpl(CoreDocumentImpl ownerDoc, String name)
Factory constructor.


    //
    // Constructors
    //

       
         
    	super(ownerDoc);
        this.name = name;
        needsSyncData(true);    // synchronizeData will initialize attributes
    
protected ElementImpl()

Methods Summary
public org.w3c.dom.NodecloneNode(boolean deep)
Return a duplicate copy of this Element. Note that its children will not be copied unless the "deep" flag is true, but Attributes are always replicated.

see
org.w3c.dom.Node#cloneNode(boolean)


    	ElementImpl newnode = (ElementImpl) super.cloneNode(deep);
    	// Replicate NamedNodeMap rather than sharing it.
        if (attributes != null) {
            newnode.attributes = (AttributeMap) attributes.cloneMap(newnode);
        }
    	return newnode;

    
public java.lang.StringgetAttribute(java.lang.String name)
Look up a single Attribute by name. Returns the Attribute's string value, or an empty string (NOT null!) to indicate that the name did not map to a currently defined attribute.

Note: Attributes may contain complex node trees. This method returns the "flattened" string obtained from Attribute.getValue(). If you need the structure information, see getAttributeNode().


        if (needsSyncData()) {
            synchronizeData();
        }
        if (attributes == null) {
            return "";
        }
        Attr attr = (Attr)(attributes.getNamedItem(name));
        return (attr == null) ? "" : attr.getValue();

    
public java.lang.StringgetAttributeNS(java.lang.String namespaceURI, java.lang.String localName)
Introduced in DOM Level 2.

Retrieves an attribute value by local name and namespace URI.

param
namespaceURI The namespace URI of the attribute to retrieve.
param
localName The local name of the attribute to retrieve.
return
String The Attr value as a string, or empty string if that attribute does not have a specified or default value.
since
WD-DOM-Level-2-19990923


        if (needsSyncData()) {
            synchronizeData();
        }

        if (attributes == null) {
            return "";
        }

        Attr attr = (Attr)(attributes.getNamedItemNS(namespaceURI, localName));
        return (attr == null) ? "" : attr.getValue();

    
public org.w3c.dom.AttrgetAttributeNode(java.lang.String name)
Look up a single Attribute by name. Returns the Attribute Node, so its complete child tree is available. This could be important in XML, where the string rendering may not be sufficient information.

If no matching attribute is available, returns null.


        if (needsSyncData()) {
            synchronizeData();
        }
        if (attributes == null) {
            return null;
        }
        return (Attr)attributes.getNamedItem(name);

    
public org.w3c.dom.AttrgetAttributeNodeNS(java.lang.String namespaceURI, java.lang.String localName)
Retrieves an Attr node by local name and namespace URI.

param
namespaceURI The namespace URI of the attribute to retrieve.
param
localName The local name of the attribute to retrieve.
return
Attr The Attr node with the specified attribute local name and namespace URI or null if there is no such attribute.
since
WD-DOM-Level-2-19990923


        if (needsSyncData()) {
            synchronizeData();
        }
        if (attributes == null) {
            return null;
        }
        return (Attr)attributes.getNamedItemNS(namespaceURI, localName);

    
public org.w3c.dom.NamedNodeMapgetAttributes()
Retrieve all the Attributes as a set. Note that this API is inherited from Node rather than specified on Element; in fact only Elements will ever have Attributes, but they want to allow folks to "blindly" operate on the tree as a set of Nodes.


        if (needsSyncData()) {
            synchronizeData();
        }
        if (attributes == null) {
            attributes = new AttributeMap(this, null);
        }
        return attributes;

    
public java.lang.StringgetBaseURI()
DOM Level 3 WD - Experimental. Retrieve baseURI


        if (needsSyncData()) {
            synchronizeData();
        }
        // Absolute base URI is computed according to 
        // XML Base (http://www.w3.org/TR/xmlbase/#granularity)
        // 1. The base URI specified by an xml:base attribute on the element, 
        // if one exists
        if (attributes != null) {
            Attr attrNode = (Attr)attributes.getNamedItem("xml:base");
            if (attrNode != null) {
                String uri =  attrNode.getNodeValue();
                if (uri.length() != 0 ) {// attribute value is always empty string
                    try {
                       uri = new URI(uri).toString();  
                    } 
                    catch (com.sun.org.apache.xerces.internal.util.URI.MalformedURIException e){
                        return null;
                    }
                    return uri;
                }
            }
        }

        // 2.the base URI of the element's parent element within the 
        // document or external entity, if one exists 
		// 3. the base URI of the document entity or external entity 
		// containing the element
		
		// ownerNode serves as a parent or as document
		String baseURI = (this.ownerNode != null) ? this.ownerNode.getBaseURI() : null ;
        //base URI of parent element is not null
        if(baseURI != null){
            try {
                //return valid absolute base URI
               return new URI(baseURI).toString();
            }
            catch (com.sun.org.apache.xerces.internal.util.URI.MalformedURIException e){
                return null;
            }
        }
        return null;
    
protected com.sun.org.apache.xerces.internal.dom.NamedNodeMapImplgetDefaultAttributes()
Get the default attributes.


    	DocumentTypeImpl doctype =
            (DocumentTypeImpl) ownerDocument.getDoctype();
    	if (doctype == null) {
            return null;
        }
        ElementDefinitionImpl eldef =
            (ElementDefinitionImpl)doctype.getElements()
                                               .getNamedItem(getNodeName());
        if (eldef == null) {
            return null;
        }
        return (NamedNodeMapImpl) eldef.getAttributes();

    
public org.w3c.dom.NodeListgetElementsByTagName(java.lang.String tagname)
Returns a NodeList of all descendent nodes (children, grandchildren, and so on) which are Elements and which have the specified tag name.

Note: NodeList is a "live" view of the DOM. Its contents will change as the DOM changes, and alterations made to the NodeList will be reflected in the DOM.

param
tagname The type of element to gather. To obtain a list of all elements no matter what their names, use the wild-card tag name "*".
see
DeepNodeListImpl

    	return new DeepNodeListImpl(this,tagname);
    
public org.w3c.dom.NodeListgetElementsByTagNameNS(java.lang.String namespaceURI, java.lang.String localName)
Introduced in DOM Level 2.

Returns a NodeList of all the Elements with a given local name and namespace URI in the order in which they would be encountered in a preorder traversal of the Document tree, starting from this node.

param
namespaceURI The namespace URI of the elements to match on. The special value "*" matches all namespaces. When it is null or an empty string, this method behaves like getElementsByTagName.
param
localName The local name of the elements to match on. The special value "*" matches all local names.
return
NodeList A new NodeList object containing all the matched Elements.
since
WD-DOM-Level-2-19990923

    	return new DeepNodeListImpl(this, namespaceURI, localName);
    
public java.lang.StringgetNodeName()
Returns the element name

        if (needsSyncData()) {
            synchronizeData();
        }
        return name;
    
public shortgetNodeType()
A short integer indicating what type of node this is. The named constants for this value are defined in the org.w3c.dom.Node interface.

        return Node.ELEMENT_NODE;
    
public org.w3c.dom.TypeInfogetSchemaTypeInfo()
Method getSchemaTypeInfo.

return
TypeInfo

       if (needsSyncData()) {
           synchronizeData();
       }
       return type;
   
public java.lang.StringgetTagName()
Returns the name of the Element. Note that Element.nodeName() is defined to also return the tag name.

This is case-preserving in XML. HTML should uppercasify it on the way in.

        if (needsSyncData()) {
            synchronizeData();
        }
    	return name;
    
protected intgetXercesAttribute(java.lang.String namespaceURI, java.lang.String localName)
NON-DOM: get inded of an attribute


        if (needsSyncData()) {
            synchronizeData();
        }
        if (attributes == null) {
            return -1;
        }
        return attributes.getNamedItemIndex(namespaceURI, localName);

    
public booleanhasAttribute(java.lang.String name)
Introduced in DOM Level 2.

        return getAttributeNode(name) != null;
    
public booleanhasAttributeNS(java.lang.String namespaceURI, java.lang.String localName)
Introduced in DOM Level 2.

        return getAttributeNodeNS(namespaceURI, localName) != null;
    
public booleanhasAttributes()
Introduced in DOM Level 2.

        if (needsSyncData()) {
            synchronizeData();
        }
        return (attributes != null && attributes.getLength() != 0);
    
public booleanisEqualNode(org.w3c.dom.Node arg)
DOM Level 3 WD- Experimental. Override inherited behavior from NodeImpl and ParentNode to check on attributes

        if (!super.isEqualNode(arg)) {
            return false;
        }
        boolean hasAttrs = hasAttributes();
        if (hasAttrs != ((Element) arg).hasAttributes()) {
            return false;
        }
        if (hasAttrs) {
            NamedNodeMap map1 = getAttributes();
            NamedNodeMap map2 = ((Element) arg).getAttributes();
            int len = map1.getLength();
            if (len != map2.getLength()) {
                return false;
            }
            for (int i = 0; i < len; i++) {
                Node n1 = map1.item(i);
                if (n1.getLocalName() == null) { // DOM Level 1 Node
                    Node n2 = map2.getNamedItem(n1.getNodeName());
                    if (n2 == null || !((NodeImpl) n1).isEqualNode(n2)) {
                        return false;
                    }
                }
                else {
                    Node n2 = map2.getNamedItemNS(n1.getNamespaceURI(),
                                                  n1.getLocalName());
                    if (n2 == null || !((NodeImpl) n1).isEqualNode(n2)) {
                        return false;
                    }
                }
            }
        }
        return true;
    
voidmoveSpecifiedAttributes(com.sun.org.apache.xerces.internal.dom.ElementImpl el)

        if (needsSyncData()) {
            synchronizeData();
        }
        if (el.hasAttributes()) {
            if (attributes == null) {
                attributes = new AttributeMap(this, null);
            }
            attributes.moveSpecifiedAttributes(el.attributes);
        }
    
public voidnormalize()
In "normal form" (as read from a source file), there will never be two Text children in succession. But DOM users may create successive Text nodes in the course of manipulating the document. Normalize walks the sub-tree and merges adjacent Texts, as if the DOM had been written out and read back in again. This simplifies implementation of higher-level functions that may want to assume that the document is in standard form.

To normalize a Document, normalize its top-level Element child.

As of PR-DOM-Level-1-19980818, CDATA -- despite being a subclass of Text -- is considered "markup" and will _not_ be merged either with normal Text or with other CDATASections.

        // No need to normalize if already normalized.
        if (isNormalized()) {
            return;
        }
        if (needsSyncChildren()) {
            synchronizeChildren();
        }
        ChildNode kid, next;
        for (kid = firstChild; kid != null; kid = next) {
            next = kid.nextSibling;

            // If kid is a text node, we need to check for one of two
            // conditions:
            //   1) There is an adjacent text node
            //   2) There is no adjacent text node, but kid is
            //      an empty text node.
            if ( kid.getNodeType() == Node.TEXT_NODE )
            {
                // If an adjacent text node, merge it with kid
                if ( next!=null && next.getNodeType() == Node.TEXT_NODE )
                {
                    ((Text)kid).appendData(next.getNodeValue());
                    removeChild( next );
                    next = kid; // Don't advance; there might be another.
                }
                else
                {
                    // If kid is empty, remove it
                    if ( kid.getNodeValue().length()==0 )
                        removeChild( kid );
                }
            }

            // Otherwise it might be an Element, which is handled recursively
            else if (kid.getNodeType() == Node.ELEMENT_NODE) {
                kid.normalize();
            }
        }

        // We must also normalize all of the attributes
        if ( attributes!=null )
        {
            for( int i=0; i<attributes.getLength(); ++i )
            {
                Node attr = attributes.item(i);
                attr.normalize();
            }
        }

    	// changed() will have occurred when the removeChild() was done,
    	// so does not have to be reissued.

        isNormalized(true);
    
protected voidreconcileDefaultAttributes()
Reconcile default attributes.

        if (attributes != null) {
            NamedNodeMapImpl defaults = getDefaultAttributes();
            attributes.reconcileDefaults(defaults);
        }
    
public voidremoveAttribute(java.lang.String name)
Remove the named attribute from this Element. If the removed Attribute has a default value, it is immediately replaced thereby.

The default logic is actually implemented in NamedNodeMapImpl. PR-DOM-Level-1-19980818 doesn't fully address the DTD, so some of this behavior is likely to change in future versions. ?????

Note that this call "succeeds" even if no attribute by this name existed -- unlike removeAttributeNode, which will throw a not-found exception in that case.

throws
DOMException(NO_MODIFICATION_ALLOWED_ERR) if the node is readonly.


    	if (ownerDocument.errorChecking && isReadOnly()) {
            String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.DOM_DOMAIN, "NO_MODIFICATION_ALLOWED_ERR", null);
            throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR, msg);
        }
    		
        if (needsSyncData()) {
            synchronizeData();
        }

        if (attributes == null) {
            return;
        }

        attributes.safeRemoveNamedItem(name);

    
public voidremoveAttributeNS(java.lang.String namespaceURI, java.lang.String localName)
Introduced in DOM Level 2.

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 namespace URI of the attribute to remove.
param
localName The local name of the attribute to remove.
throws
NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
since
WD-DOM-Level-2-19990923


    	if (ownerDocument.errorChecking && isReadOnly()) {
            String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.DOM_DOMAIN, "NO_MODIFICATION_ALLOWED_ERR", null);
            throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR, msg);
        }
    		
        if (needsSyncData()) {
            synchronizeData();
        }

        if (attributes == null) {
            return;
        }

        attributes.safeRemoveNamedItemNS(namespaceURI, localName);

    
public org.w3c.dom.AttrremoveAttributeNode(org.w3c.dom.Attr oldAttr)
Remove the specified attribute/value pair. If the removed Attribute has a default value, it is immediately replaced.

NOTE: Specifically removes THIS NODE -- not the node with this name, nor the node with these contents. If the specific Attribute object passed in is not stored in this Element, we throw a DOMException. If you really want to remove an attribute by name, use removeAttribute().

return
the Attribute object that was removed.
throws
DOMException(NOT_FOUND_ERR) if oldattr is not an attribute of this Element.
throws
DOMException(NO_MODIFICATION_ALLOWED_ERR) if the node is readonly.


    	if (ownerDocument.errorChecking && isReadOnly()) {
            String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.DOM_DOMAIN, "NO_MODIFICATION_ALLOWED_ERR", null);
            throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR, msg);
        }
    		
        if (needsSyncData()) {
            synchronizeData();
        }

        if (attributes == null) {
            String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.DOM_DOMAIN, "NOT_FOUND_ERR", null);
            throw new DOMException(DOMException.NOT_FOUND_ERR, msg);
        }
        return (Attr) attributes.removeItem(oldAttr, true);

    
voidrename(java.lang.String name)

        if (needsSyncData()) {
            synchronizeData();
        }
	    this.name = name;
        reconcileDefaultAttributes();
    
public voidsetAttribute(java.lang.String name, java.lang.String value)
Add a new name/value pair, or replace the value of the existing attribute having that name. Note: this method supports only the simplest kind of Attribute, one whose value is a string contained in a single Text node. If you want to assert a more complex value (which XML permits, though HTML doesn't), see setAttributeNode(). The attribute is created with specified=true, meaning it's an explicit value rather than inherited from the DTD as a default. Again, setAttributeNode can be used to achieve other results.

throws
DOMException(INVALID_NAME_ERR) if the name is not acceptable. (Attribute factory will do that test for us.)
throws
DOMException(NO_MODIFICATION_ALLOWED_ERR) if the node is readonly.


		if (ownerDocument.errorChecking && isReadOnly()) {
			String msg =
				DOMMessageFormatter.formatMessage(
					DOMMessageFormatter.DOM_DOMAIN,
					"NO_MODIFICATION_ALLOWED_ERR",
					null);
			throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR, msg);
		}

		if (needsSyncData()) {
			synchronizeData();
		}

		Attr newAttr = getAttributeNode(name);
		if (newAttr == null) {
			newAttr = getOwnerDocument().createAttribute(name);

			if (attributes == null) {
				attributes = new AttributeMap(this, null);
			}

			newAttr.setNodeValue(value);
			attributes.setNamedItem(newAttr);
		}
		else {
			newAttr.setNodeValue(value);
		}

	
public voidsetAttributeNS(java.lang.String namespaceURI, java.lang.String qualifiedName, java.lang.String value)
Introduced in DOM Level 2.

Adds a new attribute. If the given namespaceURI is null or an empty string and the qualifiedName has a prefix that is "xml", the new attribute is bound to the predefined namespace "http://www.w3.org/XML/1998/namespace" [Namespaces]. 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 qualifiedName, and its value is changed to be the value 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 Attr node plus any Text and EntityReference nodes, build the appropriate subtree, and use setAttributeNodeNS or setAttributeNode to assign it as the value of an attribute.

param
namespaceURI The namespace URI of the attribute to create or alter.
param
qualifiedName The qualified name of the attribute to create or alter.
param
value The value to set in string form.
throws
INVALID_CHARACTER_ERR: Raised if the specified name contains an invalid character.
throws
NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
throws
NAMESPACE_ERR: Raised if the qualifiedName has a prefix that is "xml" and the namespaceURI is neither null nor an empty string nor "http://www.w3.org/XML/1998/namespace", or if the qualifiedName has a prefix that is "xmlns" but the namespaceURI is neither null nor an empty string, or if if the qualifiedName has a prefix different from "xml" and "xmlns" and the namespaceURI is null or an empty string.
since
WD-DOM-Level-2-19990923

		if (ownerDocument.errorChecking && isReadOnly()) {
			String msg =
				DOMMessageFormatter.formatMessage(
					DOMMessageFormatter.DOM_DOMAIN,
					"NO_MODIFICATION_ALLOWED_ERR",
					null);
			throw new DOMException(
				DOMException.NO_MODIFICATION_ALLOWED_ERR,
				msg);
		}
		if (needsSyncData()) {
			synchronizeData();
		}
		int index = qualifiedName.indexOf(':");
		String prefix, localName;
		if (index < 0) {
			prefix = null;
			localName = qualifiedName;
		}
		else {
			prefix = qualifiedName.substring(0, index);
			localName = qualifiedName.substring(index + 1);
		}
		Attr newAttr = getAttributeNodeNS(namespaceURI, localName);
		if (newAttr == null) {
            // REVISIT: this is not efficient, we are creating twice the same
            //          strings for prefix and localName.
			newAttr = getOwnerDocument().createAttributeNS(
					namespaceURI,
					qualifiedName);
			if (attributes == null) {
				attributes = new AttributeMap(this, null);
			}
			newAttr.setNodeValue(value);
			attributes.setNamedItemNS(newAttr);
		}
		else {
            if (newAttr instanceof AttrNSImpl){
                // change prefix and value
                ((AttrNSImpl)newAttr).name= (prefix!=null)?(prefix+":"+localName):localName;
            }
            else {
                // This case may happen if user calls:
                //      elem.setAttribute("name", "value");
                //      elem.setAttributeNS(null, "name", "value");
                // This case is not defined by the DOM spec, we choose
                // to create a new attribute in this case and remove an old one from the tree
                // note this might cause events to be propagated or user data to be lost 
                newAttr = new AttrNSImpl((CoreDocumentImpl)getOwnerDocument(), namespaceURI, qualifiedName, localName);
                attributes.setNamedItemNS(newAttr);
            }

			newAttr.setNodeValue(value);
		}

    
public org.w3c.dom.AttrsetAttributeNode(org.w3c.dom.Attr newAttr)
Add a new attribute/value pair, or replace the value of the existing attribute with that name.

This method allows you to add an Attribute that has already been constructed, and hence avoids the limitations of the simple setAttribute() call. It can handle attribute values that have arbitrarily complex tree structure -- in particular, those which had entity references mixed into their text.

throws
DOMException(INUSE_ATTRIBUTE_ERR) if the Attribute object has already been assigned to another Element.


        if (needsSyncData()) {
            synchronizeData();
        }

    	if (ownerDocument.errorChecking) {
            if (isReadOnly()) {
                String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.DOM_DOMAIN, "NO_MODIFICATION_ALLOWED_ERR", null);
                throw new DOMException(
                                     DOMException.NO_MODIFICATION_ALLOWED_ERR, 
                                     msg);
            }
    	
            if (newAttr.getOwnerDocument() != ownerDocument) {
                String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.DOM_DOMAIN, "WRONG_DOCUMENT_ERR", null);
    		    throw new DOMException(DOMException.WRONG_DOCUMENT_ERR, msg);
            }
        }

        if (attributes == null) {
            attributes = new AttributeMap(this, null);
        }
    	// This will throw INUSE if necessary
    	return (Attr) attributes.setNamedItem(newAttr);

    
public org.w3c.dom.AttrsetAttributeNodeNS(org.w3c.dom.Attr newAttr)
Introduced in DOM Level 2.

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
Attr The Attr node to add to the attribute list. When the Node has no namespaceURI, this method behaves like setAttributeNode.
return
Attr If the newAttr attribute replaces an existing attribute with the same local name and namespace URI, the * previously existing Attr node is returned, otherwise null is returned.
throws
WRONG_DOCUMENT_ERR: Raised if newAttr was created from a different document than the one that created the element.
throws
NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
throws
INUSE_ATTRIBUTE_ERR: Raised if newAttr is already an attribute of another Element object. The DOM user must explicitly clone Attr nodes to re-use them in other elements.
since
WD-DOM-Level-2-19990923


        if (needsSyncData()) {
            synchronizeData();
        }
        if (ownerDocument.errorChecking) {
            if (isReadOnly()) {
                String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.DOM_DOMAIN, "NO_MODIFICATION_ALLOWED_ERR", null);
    		    throw new DOMException(
                                     DOMException.NO_MODIFICATION_ALLOWED_ERR, 
                                     msg);
            }
            if (newAttr.getOwnerDocument() != ownerDocument) {
                String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.DOM_DOMAIN, "WRONG_DOCUMENT_ERR", null);
                throw new DOMException(DOMException.WRONG_DOCUMENT_ERR, msg);
            }
        }

        if (attributes == null) {
            attributes = new AttributeMap(this, null);
        }
    	// This will throw INUSE if necessary
    	return (Attr) attributes.setNamedItemNS(newAttr);

    
public voidsetIdAttribute(java.lang.String name, boolean makeId)
DOM Level 3: register the given attribute node as an ID attribute

        if (needsSyncData()) {
            synchronizeData();
        }
        Attr at = getAttributeNode(name);
		
		if( at == null){
       		String msg = DOMMessageFormatter.formatMessage(
									DOMMessageFormatter.DOM_DOMAIN, 
									"NOT_FOUND_ERR", null);
            throw new DOMException(DOMException.NOT_FOUND_ERR, msg);
		}
        
		if (ownerDocument.errorChecking) {
            if (isReadOnly()) {
                String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.DOM_DOMAIN, "NO_MODIFICATION_ALLOWED_ERR", null);
                throw new DOMException(
                                     DOMException.NO_MODIFICATION_ALLOWED_ERR, 
                                     msg);
            }
        
            if (at.getOwnerElement() != this) {
                String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.DOM_DOMAIN, "NOT_FOUND_ERR", null);
                throw new DOMException(DOMException.NOT_FOUND_ERR, msg);
            }
        }
        
        ((AttrImpl) at).isIdAttribute(makeId);
        if (!makeId) {
            ownerDocument.removeIdentifier(at.getValue());
        }
        else {
            ownerDocument.putIdentifier(at.getValue(), this);
        }
    
public voidsetIdAttributeNS(java.lang.String namespaceURI, java.lang.String localName, boolean makeId)
DOM Level 3: register the given attribute node as an ID attribute

        if (needsSyncData()) {
            synchronizeData();
        }
        Attr at = getAttributeNodeNS(namespaceURI, localName);
		
		if( at == null){
       		String msg = DOMMessageFormatter.formatMessage(
									DOMMessageFormatter.DOM_DOMAIN, 
									"NOT_FOUND_ERR", null);
            throw new DOMException(DOMException.NOT_FOUND_ERR, msg);
		}
       
		if (ownerDocument.errorChecking) {
            if (isReadOnly()) {
                String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.DOM_DOMAIN, "NO_MODIFICATION_ALLOWED_ERR", null);
                throw new DOMException(
                                     DOMException.NO_MODIFICATION_ALLOWED_ERR, 
                                     msg);
            }
        
            if (at.getOwnerElement() != this) {
                String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.DOM_DOMAIN, "NOT_FOUND_ERR", null);
                throw new DOMException(DOMException.NOT_FOUND_ERR, msg);
            }
        }
        ((AttrImpl) at).isIdAttribute(makeId);
        if (!makeId) {
            ownerDocument.removeIdentifier(at.getValue());
        }
        else {
            ownerDocument.putIdentifier(at.getValue(), this);
        }
   
public voidsetIdAttributeNode(org.w3c.dom.Attr at, boolean makeId)
DOM Level 3: register the given attribute node as an ID attribute

        if (needsSyncData()) {
            synchronizeData();
        }
        if (ownerDocument.errorChecking) {
            if (isReadOnly()) {
                String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.DOM_DOMAIN, "NO_MODIFICATION_ALLOWED_ERR", null);
                throw new DOMException(
                                     DOMException.NO_MODIFICATION_ALLOWED_ERR, 
                                     msg);
            }
        
            if (at.getOwnerElement() != this) {
                String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.DOM_DOMAIN, "NOT_FOUND_ERR", null);
                throw new DOMException(DOMException.NOT_FOUND_ERR, msg);
            }
        }
        ((AttrImpl) at).isIdAttribute(makeId);
        if (!makeId) {
            ownerDocument.removeIdentifier(at.getValue());
        }
        else {
            ownerDocument.putIdentifier(at.getValue(), this);
        }
    
voidsetOwnerDocument(com.sun.org.apache.xerces.internal.dom.CoreDocumentImpl doc)
NON-DOM set the ownerDocument of this node, its children, and its attributes

	super.setOwnerDocument(doc);
        if (attributes != null) {
            attributes.setOwnerDocument(doc);
        }
    
public voidsetReadOnly(boolean readOnly, boolean deep)
NON-DOM: Subclassed to flip the attributes' readonly switch as well.

see
NodeImpl#setReadOnly

    	super.setReadOnly(readOnly,deep);
        if (attributes != null) {
            attributes.setReadOnly(readOnly,true);
        }
    
public voidsetType(org.w3c.dom.TypeInfo type)
NON-DOM: setting type used by the DOM parser

see
NodeImpl#setReadOnly

       this.type = type;
   
protected intsetXercesAttributeNode(org.w3c.dom.Attr attr)
NON-DOM: sets attribute node for this element


        if (needsSyncData()) {
            synchronizeData();
        }
        
        if (attributes == null) {
            attributes = new AttributeMap(this, null);
        }
        return attributes.addItem(attr);

    
protected voidsetupDefaultAttributes()
Setup the default attributes.

        NamedNodeMapImpl defaults = getDefaultAttributes();
        if (defaults != null) {
            attributes = new AttributeMap(this, defaults);
        }
    
protected voidsynchronizeData()
Synchronizes the data (name and value) for fast nodes.


        // no need to sync in the future
        needsSyncData(false);

        // we don't want to generate any event for this so turn them off
        boolean orig = ownerDocument.getMutationEvents();
        ownerDocument.setMutationEvents(false);

        // attributes
        setupDefaultAttributes();

        // set mutation events flag back to its original value
        ownerDocument.setMutationEvents(orig);