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javax.imageio.metadata
Class IIOMetadataNode

java.lang.Object
  javax.imageio.metadata.IIOMetadataNode

All Implemented Interfaces:

Element, Node, NodeList

public class IIOMetadataNode
extends Object
implements Element, NodeList

A class representing a node in a meta-data tree, which implements the org.w3c.dom.Element interface and additionally allows for the storage of non-textual objects via the getUserObject and setUserObject methods.

This class is not intended to be used for general XML processing. In particular, Element nodes created within the Image I/O API are not compatible with those created by Sun's standard implementation of the org.w3.dom API. In particular, the implementation is tuned for simple uses and may not perform well for intensive processing.

Namespaces are ignored in this implementation. The terms "tag name" and "node name" are always considered to be synonymous.

See Also:

IIOMetadata.getAsTree(java.lang.String), IIOMetadata.setFromTree(java.lang.String, org.w3c.dom.Node), IIOMetadata.mergeTree(java.lang.String, org.w3c.dom.Node)

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

IIOMetadataNode()
Constructs an empty IIOMetadataNode.

IIOMetadataNode(String nodeName)
Constructs an IIOMetadataNode with a given node name.

Method Summary

Node	appendChild(Node newChild) Adds the node newChild to the end of the list of children of this node.
Node	cloneNode(boolean deep) Returns a duplicate of this node.
short	compareDocumentPosition(Node other) Compares the reference node, i.e.
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) Equivalent to getAttributeNode(localName).
String	getAttributeNS(String namespaceURI, String localName) Equivalent to getAttribute(localName).
NamedNodeMap	getAttributes() A NamedNodeMap containing the attributes of this node (if it is an Element) or null otherwise.
String	getBaseURI() The absolute base URI of this node or null if the implementation wasn't able to obtain an absolute URI.
NodeList	getChildNodes() A NodeList that contains all children of this node.
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) Equivalent to getElementsByTagName(localName).
Object	getFeature(String feature, String version) This method returns a specialized object which implements the specialized APIs of the specified feature and version, as specified in .
Node	getFirstChild() Returns the first child of this node, or null if the node has no children.
Node	getLastChild() Returns the last child of this node, or null if the node has no children.
int	getLength() The number of nodes in the list.
String	getLocalName() Equivalent to getNodeName.
String	getNamespaceURI() Returns null, since namespaces are not supported.
Node	getNextSibling() Returns the next sibling of this node, or null if the node has no next sibling.
String	getNodeName() Returns the node name associated with this node.
short	getNodeType() Returns the node type, which is always ELEMENT_NODE.
String	getNodeValue() The value of this node, depending on its type; see the table above.
Document	getOwnerDocument() Returns null, since IIOMetadataNodes do not belong to any Document.
Node	getParentNode() Returns the parent of this node.
String	getPrefix() Returns null, since namespaces are not supported.
Node	getPreviousSibling() Returns the previous sibling of this node, or null if this node has no previous sibling.
TypeInfo	getSchemaTypeInfo() The type information associated with this element.
String	getTagName() The name of the element.
String	getTextContent() This attribute returns the text content of this node and its descendants.
Object	getUserData(String key) Retrieves the object associated to a key on a this node.
Object	getUserObject() Returns the Object value associated with this node.
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) Equivalent to hasAttribute(localName).
boolean	hasAttributes() Returns whether this node (if it is an element) has any attributes.
boolean	hasChildNodes() Returns true if this node has child nodes.
Node	insertBefore(Node newChild, Node refChild) Inserts the node newChild before the existing child node refChild.
boolean	isDefaultNamespace(String namespaceURI) This method checks if the specified namespaceURI is the default namespace or not.
boolean	isEqualNode(Node node) Tests whether two nodes are equal.
boolean	isSameNode(Node node) Returns whether this node is the same node as the given one.
boolean	isSupported(String feature, String version) Returns false since DOM features are not supported.
Node	item(int index) Returns the indexth item in the collection.
String	lookupNamespaceURI(String prefix) Look up the namespace URI associated to the given prefix, starting from this node.
String	lookupPrefix(String namespaceURI) Look up the prefix associated to the given namespace URI, starting from this node.
void	normalize() Does nothing, since IIOMetadataNodes do not contain Text children.
void	removeAttribute(String name) Removes an attribute by name.
Attr	removeAttributeNode(Attr oldAttr) Removes the specified attribute node.
void	removeAttributeNS(String namespaceURI, String localName) Equivalent to removeAttribute(localName).
Node	removeChild(Node oldChild) Removes the child node indicated by oldChild from the list of children, and returns it.
Node	replaceChild(Node newChild, Node oldChild) Replaces the child node oldChild with newChild in the list of children, and returns the oldChild node.
void	setAttribute(String name, String value) Adds a new attribute.
Attr	setAttributeNode(Attr newAttr) Adds a new attribute node.
Attr	setAttributeNodeNS(Attr newAttr) Equivalent to setAttributeNode(newAttr).
void	setAttributeNS(String namespaceURI, String qualifiedName, String value) Equivalent to setAttribute(qualifiedName, value).
void	setIdAttribute(String name, boolean isId) If the parameter isId is true, this method declares the specified attribute to be a user-determined ID attribute .
void	setIdAttributeNode(Attr idAttr, boolean isId) If the parameter isId is true, this method declares the specified attribute to be a user-determined ID attribute .
void	setIdAttributeNS(String namespaceURI, String localName, boolean isId) If the parameter isId is true, this method declares the specified attribute to be a user-determined ID attribute .
void	setNodeValue(String nodeValue) The value of this node, depending on its type; see the table above.
void	setPrefix(String prefix) Does nothing, since namespaces are not supported.
void	setTextContent(String textContent) This attribute returns the text content of this node and its descendants.
Object	setUserData(String key, Object data, UserDataHandler handler) Associate an object to a key on this node.
void	setUserObject(Object userObject) Sets the value associated with this node.

Methods inherited from class java.lang.Object

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

Constructor Detail

IIOMetadataNode

public IIOMetadataNode()

Constructs an empty IIOMetadataNode.

IIOMetadataNode

public IIOMetadataNode(String nodeName)

Constructs an IIOMetadataNode with a given node name.

Parameters:

nodeName - the name of the node, as a String.

Method Detail

getNodeName

public String getNodeName()

Returns the node name associated with this node.

Specified by:

getNodeName in interface Node

Returns:

the node name, as a String.

getNodeValue

public String getNodeValue()
                    throws DOMException

Description copied from interface: Node

The value of this node, depending on its type; see the table above. When it is defined to be null, setting it has no effect, including if the node is read-only.

Specified by:

getNodeValue in interface Node

Throws:

DOMException - DOMSTRING_SIZE_ERR: Raised when it would return more characters than fit in a DOMString variable on the implementation platform.

setNodeValue

public void setNodeValue(String nodeValue)
                  throws DOMException

Description copied from interface: Node

The value of this node, depending on its type; see the table above. When it is defined to be null, setting it has no effect, including if the node is read-only.

Specified by:

setNodeValue in interface Node

Throws:

DOMException - NO_MODIFICATION_ALLOWED_ERR: Raised when the node is readonly and if it is not defined to be null.

getNodeType

public short getNodeType()

Returns the node type, which is always ELEMENT_NODE.

Specified by:

getNodeType in interface Node

Returns:

the short value ELEMENT_NODE.

getParentNode

public Node getParentNode()

Returns the parent of this node. A null value indicates that the node is the root of its own tree. To add a node to an existing tree, use one of the insertBefore, replaceChild, or appendChild methods.

Specified by:

getParentNode in interface Node

Returns:

the parent, as a Node.

See Also:

insertBefore(org.w3c.dom.Node, org.w3c.dom.Node), replaceChild(org.w3c.dom.Node, org.w3c.dom.Node), appendChild(org.w3c.dom.Node)

getChildNodes

public NodeList getChildNodes()

Description copied from interface: Node

A NodeList that contains all children of this node. If there are no children, this is a NodeList containing no nodes.

Specified by:

getChildNodes in interface Node

getFirstChild

public Node getFirstChild()

Returns the first child of this node, or null if the node has no children.

Specified by:

getFirstChild in interface Node

Returns:

the first child, as a Node, or null

getLastChild

public Node getLastChild()

Returns the last child of this node, or null if the node has no children.

Specified by:

getLastChild in interface Node

Returns:

the last child, as a Node, or null.

getPreviousSibling

public Node getPreviousSibling()

Returns the previous sibling of this node, or null if this node has no previous sibling.

Specified by:

getPreviousSibling in interface Node

Returns:

the previous sibling, as a Node, or null.

getNextSibling

public Node getNextSibling()

Returns the next sibling of this node, or null if the node has no next sibling.

Specified by:

getNextSibling in interface Node

Returns:

the next sibling, as a Node, or null.

getAttributes

public NamedNodeMap getAttributes()

Description copied from interface: Node

A NamedNodeMap containing the attributes of this node (if it is an Element) or null otherwise.

Specified by:

getAttributes in interface Node

getOwnerDocument

public Document getOwnerDocument()

Returns null, since IIOMetadataNodes do not belong to any Document.

Specified by:

getOwnerDocument in interface Node

Returns:

null.

insertBefore

public Node insertBefore(Node newChild,
                         Node refChild)

Inserts the node newChild before the existing child node refChild. If refChild is null, insert newChild at the end of the list of children.

Specified by:

insertBefore in interface Node

Parameters:

newChild - the Node to insert.

refChild - the reference Node.

Returns:

the node being inserted.

Throws:

IllegalArgumentException - if newChild is null.

replaceChild

public Node replaceChild(Node newChild,
                         Node oldChild)

Replaces the child node oldChild with newChild in the list of children, and returns the oldChild node.

Specified by:

replaceChild in interface Node

Parameters:

newChild - the Node to insert.

oldChild - the Node to be replaced.

Returns:

the node replaced.

Throws:

IllegalArgumentException - if newChild is null.

removeChild

public Node removeChild(Node oldChild)

Removes the child node indicated by oldChild from the list of children, and returns it.

Specified by:

removeChild in interface Node

Parameters:

oldChild - the Node to be removed.

Returns:

the node removed.

Throws:

IllegalArgumentException - if oldChild is null.

appendChild

public Node appendChild(Node newChild)

Adds the node newChild to the end of the list of children of this node.

Specified by:

appendChild in interface Node

Parameters:

newChild - the Node to insert.

Returns:

the node added.

Throws:

IllegalArgumentException - if newChild is null.

hasChildNodes

public boolean hasChildNodes()

Returns true if this node has child nodes.

Specified by:

hasChildNodes in interface Node

Returns:

true if this node has children.

cloneNode

public Node cloneNode(boolean deep)

Returns a duplicate of this node. The duplicate node has no parent (getParentNode returns null). If a shallow clone is being performed (deep is false), the new node will not have any children or siblings. If a deep clone is being performed, the new node will form the root of a complete cloned subtree.

Specified by:

cloneNode in interface Node

Parameters:

deep - if true, recursively clone the subtree under the specified node; if false, clone only the node itself.

Returns:

the duplicate node.

normalize

public void normalize()

Does nothing, since IIOMetadataNodes do not contain Text children.

Specified by:

normalize in interface Node

isSupported

public boolean isSupported(String feature,
                           String version)

Returns false since DOM features are not supported.

Specified by:

isSupported in interface Node

Parameters:

feature - a String, which is ignored.

version - a String, which is ignored.

Returns:

false.

getNamespaceURI

public String getNamespaceURI()
                       throws DOMException

Returns null, since namespaces are not supported.

Specified by:

getNamespaceURI in interface Node

Throws:

DOMException

getPrefix

public String getPrefix()

Returns null, since namespaces are not supported.

Specified by:

getPrefix in interface Node

Returns:

null.

See Also:

setPrefix(java.lang.String)

setPrefix

public void setPrefix(String prefix)

Does nothing, since namespaces are not supported.

Specified by:

setPrefix in interface Node

Parameters:

prefix - a String, which is ignored.

See Also:

getPrefix()

getLocalName

public String getLocalName()

Equivalent to getNodeName.

Specified by:

getLocalName in interface Node

Returns:

the node name, as a String.

getTagName

public String getTagName()

Description copied from interface: Element

The name of the element. If Node.localName is different from null, this attribute is a qualified name. For example, in:

 <elementExample id="demo"> ... 
 </elementExample> , 

tagName has the value "elementExample". Note that this is case-preserving in XML, as are all of the operations of the DOM. The HTML DOM returns the tagName of an HTML element in the canonical uppercase form, regardless of the case in the source HTML document.

Specified by:

getTagName in interface Element

getAttribute

public String getAttribute(String name)

Description copied from interface: Element

Retrieves an attribute value by name.

Specified by:

getAttribute in interface Element

Parameters:

name - The 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.

getAttributeNS

public String getAttributeNS(String namespaceURI,
                             String localName)

Equivalent to getAttribute(localName).

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.

See Also:

setAttributeNS(java.lang.String, java.lang.String, java.lang.String)

setAttribute

public void setAttribute(String name,
                         String value)

Description copied from interface: Element

Adds a new attribute. If an attribute with that name is already present in the element, its value is changed to be that of 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 setAttributeNode to assign it as the value of an attribute.
To set an attribute with a qualified name and namespace URI, use the setAttributeNS method.

Specified by:

setAttribute in interface Element

Parameters:

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

value - Value to set in string form.

setAttributeNS

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

Equivalent to setAttribute(qualifiedName, value).

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.

See Also:

getAttributeNS(java.lang.String, java.lang.String)

removeAttribute

public void removeAttribute(String name)

Description copied from interface: Element

Removes an attribute by name. If a default value for the removed attribute is defined in the DTD, a new attribute immediately appears with the default value as well as the corresponding namespace URI, local name, and prefix when applicable. The implementation may handle default values from other schemas similarly but applications should use Document.normalizeDocument() to guarantee this information is up-to-date.
If no attribute with this name is found, this method has no effect.
To remove an attribute by local name and namespace URI, use the removeAttributeNS method.

Specified by:

removeAttribute in interface Element

Parameters:

name - The name of the attribute to remove.

removeAttributeNS

public void removeAttributeNS(String namespaceURI,
                              String localName)

Equivalent to removeAttribute(localName).

Specified by:

removeAttributeNS in interface Element

Parameters:

namespaceURI - The namespace URI of the attribute to remove.

localName - The local name of the attribute to remove.

getAttributeNode

public Attr getAttributeNode(String name)

Description copied from interface: Element

Retrieves an attribute node by name.
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.

getAttributeNodeNS

public Attr getAttributeNodeNS(String namespaceURI,
                               String localName)

Equivalent to getAttributeNode(localName).

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.

See Also:

setAttributeNodeNS(org.w3c.dom.Attr)

setAttributeNode

public Attr setAttributeNode(Attr newAttr)
                      throws DOMException

Description copied from interface: Element

Adds a new attribute node. If an attribute with that name ( nodeName) is already present in the element, it is replaced by the new one. Replacing an attribute node by itself has no effect.
To add a new attribute node with a qualified name and namespace URI, use the setAttributeNodeNS method.

Specified by:

setAttributeNode in interface Element

Parameters:

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

Returns:

If the newAttr attribute replaces an existing attribute, the replaced Attr node is returned, otherwise null is returned.

Throws:

DOMException - WRONG_DOCUMENT_ERR: Raised if newAttr was created from a different document than the one that created the element.
NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
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.

setAttributeNodeNS

public Attr setAttributeNodeNS(Attr newAttr)

Equivalent to setAttributeNode(newAttr).

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.

See Also:

getAttributeNodeNS(java.lang.String, java.lang.String)

removeAttributeNode

public Attr removeAttributeNode(Attr oldAttr)

Description copied from interface: Element

Removes the specified attribute node. If a default value for the removed Attr node is defined in the DTD, a new node immediately appears with the default value as well as the corresponding namespace URI, local name, and prefix when applicable. The implementation may handle default values from other schemas similarly but applications should use Document.normalizeDocument() to guarantee this information is up-to-date.

Specified by:

removeAttributeNode in interface Element

Parameters:

oldAttr - The Attr node to remove from the attribute list.

Returns:

The Attr node that was removed.

getElementsByTagName

public NodeList getElementsByTagName(String name)

Description copied from interface: Element

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)

Equivalent to getElementsByTagName(localName).

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.

hasAttributes

public boolean hasAttributes()

Description copied from interface: Node

Returns whether this node (if it is an element) has any attributes.

Specified by:

hasAttributes in interface Node

Returns:

Returns true if this node has any attributes, false otherwise.

hasAttribute

public boolean hasAttribute(String name)

Description copied from interface: Element

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

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.

hasAttributeNS

public boolean hasAttributeNS(String namespaceURI,
                              String localName)

Equivalent to hasAttribute(localName).

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.

getLength

public int getLength()

Description copied from interface: NodeList

The number of nodes in the list. The range of valid child node indices is 0 to length-1 inclusive.

Specified by:

getLength in interface NodeList

item

public Node item(int index)

Description copied from interface: NodeList

Returns the indexth item in the collection. If index is greater than or equal to the number of nodes in the list, this returns null.

Specified by:

item in interface NodeList

Parameters:

index - Index into the collection.

Returns:

The node at the indexth position in the NodeList, or null if that is not a valid index.

getUserObject

public Object getUserObject()

Returns the Object value associated with this node.

Returns:

the user Object.

See Also:

setUserObject(java.lang.Object)

setUserObject

public void setUserObject(Object userObject)

Sets the value associated with this node.

Parameters:

userObject - the user Object.

See Also:

getUserObject()

setIdAttribute

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

Description copied from interface: Element

If the parameter isId is true, this method declares the specified attribute to be a user-determined ID attribute . This affects the value of Attr.isId and the behavior of Document.getElementById, but does not change any schema that may be in use, in particular this does not affect the Attr.schemaTypeInfo of the specified Attr node. Use the value false for the parameter isId to undeclare an attribute for being a user-determined ID attribute.
To specify an attribute by local name and namespace URI, use the setIdAttributeNS method.

Specified by:

setIdAttribute in interface Element

Parameters:

name - The name of the attribute.

isId - Whether the attribute is a of type ID.

Throws:

DOMException - NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
NOT_FOUND_ERR: Raised if the specified node is not an attribute of this element.

setIdAttributeNS

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

Description copied from interface: Element

If the parameter isId is true, this method declares the specified attribute to be a user-determined ID attribute . This affects the value of Attr.isId and the behavior of Document.getElementById, but does not change any schema that may be in use, in particular this does not affect the Attr.schemaTypeInfo of the specified Attr node. Use the value false for the parameter isId to undeclare an attribute for being a user-determined ID attribute.

Specified by:

setIdAttributeNS in interface Element

Parameters:

namespaceURI - The namespace URI of the attribute.

localName - The local name of the attribute.

isId - Whether the attribute is a of type ID.

Throws:

DOMException - NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
NOT_FOUND_ERR: Raised if the specified node is not an attribute of this element.

setIdAttributeNode

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

Description copied from interface: Element

If the parameter isId is true, this method declares the specified attribute to be a user-determined ID attribute . This affects the value of Attr.isId and the behavior of Document.getElementById, but does not change any schema that may be in use, in particular this does not affect the Attr.schemaTypeInfo of the specified Attr node. Use the value false for the parameter isId to undeclare an attribute for being a user-determined ID attribute.

Specified by:

setIdAttributeNode in interface Element

Parameters:

idAttr - The attribute node.

isId - Whether the attribute is a of type ID.

Throws:

DOMException - NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
NOT_FOUND_ERR: Raised if the specified node is not an attribute of this element.

getSchemaTypeInfo

public TypeInfo getSchemaTypeInfo()

Description copied from interface: Element

The type information associated with this element.

Specified by:

getSchemaTypeInfo in interface Element

setUserData

public Object setUserData(String key,
                          Object data,
                          UserDataHandler handler)

Description copied from interface: Node

Associate an object to a key on this node. The object can later be retrieved from this node by calling getUserData with the same key.

Specified by:

setUserData in interface Node

Parameters:

key - The key to associate the object to.

data - The object to associate to the given key, or null to remove any existing association to that key.

handler - The handler to associate to that key, or null.

Returns:

Returns the DOMUserData previously associated to the given key on this node, or null if there was none.

getUserData

public Object getUserData(String key)

Description copied from interface: Node

Retrieves the object associated to a key on a this node. The object must first have been set to this node by calling setUserData with the same key.

Specified by:

getUserData in interface Node

Parameters:

key - The key the object is associated to.

Returns:

Returns the DOMUserData associated to the given key on this node, or null if there was none.

getFeature

public Object getFeature(String feature,
                         String version)

Description copied from interface: Node

This method returns a specialized object which implements the specialized APIs of the specified feature and version, as specified in . The specialized object may also be obtained by using binding-specific casting methods but is not necessarily expected to, as discussed in . This method also allow the implementation to provide specialized objects which do not support the Node interface.

Specified by:

getFeature in interface Node

Parameters:

feature - The name of the feature requested. Note that any plus sign "+" prepended to the name of the feature will be ignored since it is not significant in the context of this method.

version - This is the version number of the feature to test.

Returns:

Returns an object which implements the specialized APIs of the specified feature and version, if any, or null if there is no object which implements interfaces associated with that feature. If the DOMObject returned by this method implements the Node interface, it must delegate to the primary core Node and not return results inconsistent with the primary core Node such as attributes, childNodes, etc.

isSameNode

public boolean isSameNode(Node node)

Description copied from interface: Node

Returns whether this node is the same node as the given one.
This method provides a way to determine whether two Node references returned by the implementation reference the same object. When two Node references are references to the same object, even if through a proxy, the references may be used completely interchangeably, such that all attributes have the same values and calling the same DOM method on either reference always has exactly the same effect.

Specified by:

isSameNode in interface Node

Parameters:

node - The node to test against.

Returns:

Returns true if the nodes are the same, false otherwise.

isEqualNode

public boolean isEqualNode(Node node)

Description copied from interface: Node

Tests whether two nodes are equal.
This method tests for equality of nodes, not sameness (i.e., whether the two nodes are references to the same object) which can be tested with Node.isSameNode(). All nodes that are the same will also be equal, though the reverse may not be true.
Two nodes are equal if and only if the following conditions are satisfied:

• The two nodes are of the same type.
• The following string attributes are equal: nodeName, localName, namespaceURI, prefix, nodeValue . This is: they are both null, or they have the same length and are character for character identical.
• The attributes NamedNodeMaps are equal. This is: they are both null, or they have the same length and for each node that exists in one map there is a node that exists in the other map and is equal, although not necessarily at the same index.
• The childNodes NodeLists are equal. This is: they are both null, or they have the same length and contain equal nodes at the same index. Note that normalization can affect equality; to avoid this, nodes should be normalized before being compared.

For two DocumentType nodes to be equal, the following conditions must also be satisfied:

• The following string attributes are equal: publicId, systemId, internalSubset.
• The entities NamedNodeMaps are equal.
• The notations NamedNodeMaps are equal.

On the other hand, the following do not affect equality: the ownerDocument, baseURI, and parentNode attributes, the specified attribute for Attr nodes, the schemaTypeInfo attribute for Attr and Element nodes, the Text.isElementContentWhitespace attribute for Text nodes, as well as any user data or event listeners registered on the nodes.

Note: As a general rule, anything not mentioned in the description above is not significant in consideration of equality checking. Note that future versions of this specification may take into account more attributes and implementations conform to this specification are expected to be updated accordingly.

Specified by:

isEqualNode in interface Node

Parameters:

node - The node to compare equality with.

Returns:

Returns true if the nodes are equal, false otherwise.

lookupNamespaceURI

public String lookupNamespaceURI(String prefix)

Description copied from interface: Node

Look up the namespace URI associated to the given prefix, starting from this node.
See for details on the algorithm used by this method.

Specified by:

lookupNamespaceURI in interface Node

Parameters:

prefix - The prefix to look for. If this parameter is null, the method will return the default namespace URI if any.

Returns:

Returns the associated namespace URI or null if none is found.

isDefaultNamespace

public boolean isDefaultNamespace(String namespaceURI)

Description copied from interface: Node

This method checks if the specified namespaceURI is the default namespace or not.

Specified by:

isDefaultNamespace in interface Node

Parameters:

namespaceURI - The namespace URI to look for.

Returns:

Returns true if the specified namespaceURI is the default namespace, false otherwise.

lookupPrefix

public String lookupPrefix(String namespaceURI)

Description copied from interface: Node

Look up the prefix associated to the given namespace URI, starting from this node. The default namespace declarations are ignored by this method.
See for details on the algorithm used by this method.

Specified by:

lookupPrefix in interface Node

Parameters:

namespaceURI - The namespace URI to look for.

Returns:

Returns an associated namespace prefix if found or null if none is found. If more than one prefix are associated to the namespace prefix, the returned namespace prefix is implementation dependent.

getTextContent

public String getTextContent()
                      throws DOMException

Description copied from interface: Node

This attribute returns the text content of this node and its descendants. When it is defined to be null, setting it has no effect. On setting, any possible children this node may have are removed and, if it the new string is not empty or null, replaced by a single Text node containing the string this attribute is set to.
On getting, no serialization is performed, the returned string does not contain any markup. No whitespace normalization is performed and the returned string does not contain the white spaces in element content (see the attribute Text.isElementContentWhitespace). Similarly, on setting, no parsing is performed either, the input string is taken as pure textual content.
The string returned is made of the text content of this node depending on its type, as defined below:

Node type	Content
ELEMENT_NODE, ATTRIBUTE_NODE, ENTITY_NODE, ENTITY_REFERENCE_NODE, DOCUMENT_FRAGMENT_NODE	concatenation of the textContent attribute value of every child node, excluding COMMENT_NODE and PROCESSING_INSTRUCTION_NODE nodes. This is the empty string if the node has no children.
TEXT_NODE, CDATA_SECTION_NODE, COMMENT_NODE, PROCESSING_INSTRUCTION_NODE	nodeValue
DOCUMENT_NODE, DOCUMENT_TYPE_NODE, NOTATION_NODE	null

Specified by:

getTextContent in interface Node

Throws:

DOMException - DOMSTRING_SIZE_ERR: Raised when it would return more characters than fit in a DOMString variable on the implementation platform.

setTextContent

public void setTextContent(String textContent)
                    throws DOMException

Description copied from interface: Node

This attribute returns the text content of this node and its descendants. When it is defined to be null, setting it has no effect. On setting, any possible children this node may have are removed and, if it the new string is not empty or null, replaced by a single Text node containing the string this attribute is set to.
On getting, no serialization is performed, the returned string does not contain any markup. No whitespace normalization is performed and the returned string does not contain the white spaces in element content (see the attribute Text.isElementContentWhitespace). Similarly, on setting, no parsing is performed either, the input string is taken as pure textual content.
The string returned is made of the text content of this node depending on its type, as defined below:

Node type	Content
ELEMENT_NODE, ATTRIBUTE_NODE, ENTITY_NODE, ENTITY_REFERENCE_NODE, DOCUMENT_FRAGMENT_NODE	concatenation of the textContent attribute value of every child node, excluding COMMENT_NODE and PROCESSING_INSTRUCTION_NODE nodes. This is the empty string if the node has no children.
TEXT_NODE, CDATA_SECTION_NODE, COMMENT_NODE, PROCESSING_INSTRUCTION_NODE	nodeValue
DOCUMENT_NODE, DOCUMENT_TYPE_NODE, NOTATION_NODE	null

Specified by:

setTextContent in interface Node

Throws:

DOMException - NO_MODIFICATION_ALLOWED_ERR: Raised when the node is readonly.

compareDocumentPosition

public short compareDocumentPosition(Node other)
                              throws DOMException

Description copied from interface: Node

Compares the reference node, i.e. the node on which this method is being called, with a node, i.e. the one passed as a parameter, with regard to their position in the document and according to the document order.

Specified by:

compareDocumentPosition in interface Node

Parameters:

other - The node to compare against the reference node.

Returns:

Returns how the node is positioned relatively to the reference node.

Throws:

DOMException - NOT_SUPPORTED_ERR: when the compared nodes are from different DOM implementations that do not coordinate to return consistent implementation-specific results.

getBaseURI

public String getBaseURI()

Description copied from interface: Node

The absolute base URI of this node or null if the implementation wasn't able to obtain an absolute URI. This value is computed as described in . However, when the Document supports the feature "HTML" [DOM Level 2 HTML] , the base URI is computed using first the value of the href attribute of the HTML BASE element if any, and the value of the documentURI attribute from the Document interface otherwise.

Specified by:

getBaseURI in interface Node