net.sf.saxon.dom
Class ElementOverNodeInfo

java.lang.Object
  net.sf.saxon.dom.NodeOverNodeInfo
      net.sf.saxon.dom.ElementOverNodeInfo

All Implemented Interfaces:

Element, Node

public class ElementOverNodeInfo
extends NodeOverNodeInfo
implements Element

This class is an implementation of the DOM Element class that wraps a Saxon NodeInfo representation of an element node.

The class provides read-only access to the tree; methods that request updates all fail with an UnsupportedOperationException.

Note that contrary to the DOM specification, this implementation does not expose namespace declarations as attributes.

Field Summary

Fields inherited from interface org.w3c.dom.Node

ATTRIBUTE_NODE, CDATA_SECTION_NODE, COMMENT_NODE, DOCUMENT_FRAGMENT_NODE, DOCUMENT_NODE, DOCUMENT_POSITION_CONTAINED_BY, DOCUMENT_POSITION_CONTAINS, DOCUMENT_POSITION_DISCONNECTED, DOCUMENT_POSITION_FOLLOWING, DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC, DOCUMENT_POSITION_PRECEDING, DOCUMENT_TYPE_NODE, ELEMENT_NODE, ENTITY_NODE, ENTITY_REFERENCE_NODE, NOTATION_NODE, PROCESSING_INSTRUCTION_NODE, TEXT_NODE

Constructor Summary

ElementOverNodeInfo()

Method Summary

String	getAttribute(String name) Retrieves an attribute value by name.
Attr	getAttributeNode(String name) Retrieves an attribute node by name.
Attr	getAttributeNodeNS(String namespaceURI, String localName) Retrieves an Attr node by local name and namespace URI.
String	getAttributeNS(String namespaceURI, String localName) Retrieves an attribute value by local name and namespace URI.
NodeList	getElementsByTagName(String name) Returns a NodeList of all descendant Elements with a given tag name, in document order.
NodeList	getElementsByTagNameNS(String namespaceURI, String localName) Returns a NodeList of all the descendant Elements with a given local name and namespace URI in document order.
TypeInfo	getSchemaTypeInfo() Get the schema type information for this node.
String	getTagName() The name of the element (DOM interface).
boolean	hasAttribute(String name) Returns true when an attribute with a given name is specified on this element or has a default value, false otherwise.
boolean	hasAttributeNS(String namespaceURI, String localName) Returns true when an attribute with a given local name and namespace URI is specified on this element or has a default value, false otherwise.
void	removeAttribute(String oldAttr) Removes the specified attribute.
Attr	removeAttributeNode(Attr oldAttr) Removes the specified attribute node.
void	removeAttributeNS(String namespaceURI, String localName) Removes an attribute by local name and namespace URI.
void	setAttribute(String name, String value) Adds a new attribute.
Attr	setAttributeNode(Attr newAttr) Adds a new attribute node.
Attr	setAttributeNodeNS(Attr newAttr) Add a new attribute.
void	setAttributeNS(String namespaceURI, String qualifiedName, String value) Adds a new attribute.
void	setIdAttribute(String name, boolean isId) Mark an attribute as an ID.
void	setIdAttributeNode(Attr idAttr, boolean isId) Mark an attribute as an ID.
void	setIdAttributeNS(String namespaceURI, String localName, boolean isId) Mark an attribute as an ID.

Methods inherited from class net.sf.saxon.dom.NodeOverNodeInfo

appendChild, cloneNode, compareDocumentPosition, getAttributes, getBaseURI, getChildNodes, getFeature, getFirstChild, getLastChild, getLocalName, getNamespaceURI, getNextSibling, getNodeName, getNodeType, getNodeValue, getOwnerDocument, getParentNode, getPrefix, getPreviousSibling, getTextContent, getUnderlyingNodeInfo, getUserData, hasAttributes, hasChildNodes, insertBefore, isDefaultNamespace, isEqualNode, isSameNode, isSupported, lookupNamespaceURI, lookupPrefix, normalize, removeChild, replaceChild, setNodeValue, setPrefix, setTextContent, setUserData, wrap

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.w3c.dom.Node

appendChild, cloneNode, compareDocumentPosition, getAttributes, getBaseURI, getChildNodes, getFeature, getFirstChild, getLastChild, getLocalName, getNamespaceURI, getNextSibling, getNodeName, getNodeType, getNodeValue, getOwnerDocument, getParentNode, getPrefix, getPreviousSibling, getTextContent, getUserData, hasAttributes, hasChildNodes, insertBefore, isDefaultNamespace, isEqualNode, isSameNode, isSupported, lookupNamespaceURI, lookupPrefix, normalize, removeChild, replaceChild, setNodeValue, setPrefix, setTextContent, setUserData

Constructor Detail

ElementOverNodeInfo

public ElementOverNodeInfo()

Method Detail

getTagName

public String getTagName()

The name of the element (DOM interface).

Specified by:

getTagName in interface Element

getElementsByTagName

public NodeList getElementsByTagName(String name)

Returns a NodeList of all descendant Elements with a given tag name, in document order.

Specified by:

getElementsByTagName in interface Element

Parameters:

name - The name of the tag to match on. The special value "*" matches all tags.

Returns:

A list of matching Element nodes.

getElementsByTagNameNS

public NodeList getElementsByTagNameNS(String namespaceURI,
                                       String localName)
                                throws DOMException

Returns a NodeList of all the descendant Elements with a given local name and namespace URI in document order.

Specified by:

getElementsByTagNameNS in interface Element

Parameters:

namespaceURI - The namespace URI of the elements to match on. The special value "*" matches all namespaces.

localName - The local name of the elements to match on. The special value "*" matches all local names.

Returns:

A new NodeList object containing all the matched Elements.

Throws:

DOMException - NOT_SUPPORTED_ERR: May be raised if the implementation does not support the feature "XML" and the language exposed through the Document does not support XML Namespaces (such as [HTML 4.01]).

Since:

DOM Level 2

getAttribute

public String getAttribute(String name)

Retrieves an attribute value by name. This implementation does not expose namespace nodes as attributes.

Specified by:

getAttribute in interface Element

Parameters:

name - The QName of the attribute to retrieve.

Returns:

The Attr value as a string, or the empty string if that attribute does not have a specified or default value.

getAttributeNode

public Attr getAttributeNode(String name)

Retrieves an attribute node by name. This implementation does not expose namespace nodes as attributes.
To retrieve an attribute node by qualified name and namespace URI, use the getAttributeNodeNS method.

Specified by:

getAttributeNode in interface Element

Parameters:

name - The name (nodeName ) of the attribute to retrieve.

Returns:

The Attr node with the specified name ( nodeName ) or null if there is no such attribute.

setAttributeNode

public Attr setAttributeNode(Attr newAttr)
                      throws DOMException

Adds a new attribute node. Always fails

Specified by:

setAttributeNode in interface Element

Throws:

DOMException - NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.

removeAttribute

public void removeAttribute(String oldAttr)
                     throws DOMException

Removes the specified attribute. Always fails

Specified by:

removeAttribute in interface Element

Throws:

DOMException - NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.

removeAttributeNode

public Attr removeAttributeNode(Attr oldAttr)
                         throws DOMException

Removes the specified attribute node. Always fails

Specified by:

removeAttributeNode in interface Element

Throws:

DOMException - NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.

getAttributeNS

public String getAttributeNS(String namespaceURI,
                             String localName)

Retrieves an attribute value by local name and namespace URI. This implementation does not expose namespace nodes as attributes.

Specified by:

getAttributeNS in interface Element

Parameters:

namespaceURI - The namespace URI of the attribute to retrieve.

localName - The local name of the attribute to retrieve.

Returns:

The Attr value as a string, or the empty string if that attribute does not have a specified or default value.

Since:

DOM Level 2

setAttribute

public void setAttribute(String name,
                         String value)
                  throws DOMException

Adds a new attribute. Always fails

Specified by:

setAttribute in interface Element

Parameters:

name - The name of the attribute to create or alter.

value - Value to set in string form.

Throws:

DOMException - INVALID_CHARACTER_ERR: Raised if the specified name is not an XML name according to the XML version in use specified in the Document.xmlVersion attribute.
NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.

setAttributeNS

public void setAttributeNS(String namespaceURI,
                           String qualifiedName,
                           String value)
                    throws DOMException

Adds a new attribute. Always fails.

Specified by:

setAttributeNS in interface Element

Parameters:

namespaceURI - The namespace URI of the attribute to create or alter.

qualifiedName - The qualified name of the attribute to create or alter.

value - The value to set in string form.

Throws:

DOMException - NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.

removeAttributeNS

public void removeAttributeNS(String namespaceURI,
                              String localName)
                       throws DOMException

Removes an attribute by local name and namespace URI. Always fails

Specified by:

removeAttributeNS in interface Element

Throws:

DOMException - NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.

Since:

DOM Level 2

getAttributeNodeNS

public Attr getAttributeNodeNS(String namespaceURI,
                               String localName)

Retrieves an Attr node by local name and namespace URI. This implementation does not expose namespace nodes as attributes.

Specified by:

getAttributeNodeNS in interface Element

Parameters:

namespaceURI - The namespace URI of the attribute to retrieve.

localName - The local name of the attribute to retrieve.

Returns:

The Attr node with the specified attribute local name and namespace URI or null if there is no such attribute.

Since:

DOM Level 2

setAttributeNodeNS

public Attr setAttributeNodeNS(Attr newAttr)
                        throws DOMException

Add a new attribute. Always fails.

Specified by:

setAttributeNodeNS in interface Element

Parameters:

newAttr - The Attr node to add to the attribute list.

Returns:

If the newAttr attribute replaces an existing attribute with the same local name and namespace URI , the replaced Attr node is returned, otherwise null is returned.

Throws:

DOMException -
NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.

Since:

DOM Level 2

hasAttribute

public boolean hasAttribute(String name)

Returns true when an attribute with a given name is specified on this element or has a default value, false otherwise. This implementation does not expose namespace nodes as attributes.

Specified by:

hasAttribute in interface Element

Parameters:

name - The name of the attribute to look for.

Returns:

true if an attribute with the given name is specified on this element or has a default value, false otherwise.

Since:

DOM Level 2

hasAttributeNS

public boolean hasAttributeNS(String namespaceURI,
                              String localName)

Returns true when an attribute with a given local name and namespace URI is specified on this element or has a default value, false otherwise. This implementation does not expose namespace nodes as attributes.

Specified by:

hasAttributeNS in interface Element

Parameters:

namespaceURI - The namespace URI of the attribute to look for.

localName - The local name of the attribute to look for.

Returns:

true if an attribute with the given local name and namespace URI is specified or has a default value on this element, false otherwise.

Since:

DOM Level 2

setIdAttribute

public void setIdAttribute(String name,
                           boolean isId)
                    throws DOMException

Mark an attribute as an ID. Always fails.

Specified by:

setIdAttribute in interface Element

Throws:

DOMException

setIdAttributeNS

public void setIdAttributeNS(String namespaceURI,
                             String localName,
                             boolean isId)
                      throws DOMException

Mark an attribute as an ID. Always fails.

Specified by:

setIdAttributeNS in interface Element

Throws:

DOMException

setIdAttributeNode

public void setIdAttributeNode(Attr idAttr,
                               boolean isId)
                        throws DOMException

Mark an attribute as an ID. Always fails.

Specified by:

setIdAttributeNode in interface Element

Throws:

DOMException

getSchemaTypeInfo

public TypeInfo getSchemaTypeInfo()

Get the schema type information for this node.

Specified by:

getSchemaTypeInfo in interface Element

Returns:

the type information. Returns null for an untyped node.