| org.w3c.dom.Node
All known Subclasses: org.w3c.tidy.DOMNodeImpl,
| Node | | public interface Node (Code) | | The Node interface is the primary datatype for the entire
Document Object Model. It represents a single node in the document tree.
While all objects implementing the Node interface expose
methods for dealing with children, not all objects implementing the
Node interface may have children. For example,
Text nodes may not have children, and adding children to
such nodes results in a DOMException being raised.
The attributes nodeName, nodeValue and
attributes are included as a mechanism to get at node
information without casting down to the specific derived interface. In
cases where there is no obvious mapping of these attributes for a
specific nodeType (e.g., nodeValue for an
Element or attributes for a Comment
), this returns null. Note that the specialized interfaces
may contain additional and more convenient mechanisms to get and set the
relevant information.
See also the Document Object Model (DOM) Level 2 Core Specification.
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| Method Summary | |
| public Node | appendChild(Node newChild)
Adds the node newChild to the end of the list of children
of this node. | | public Node | cloneNode(boolean deep)
Returns a duplicate of this node, i.e., serves as a generic copy
constructor for nodes. | | public NamedNodeMap | getAttributes()
A NamedNodeMap containing the attributes of this node (if
it is an Element) or null otherwise. | | public NodeList | getChildNodes()
A NodeList that contains all children of this node. | | public Node | getFirstChild()
The first child of this node. | | public Node | getLastChild()
The last child of this node. | | public String | getLocalName()
Returns the local part of the qualified name of this node. | | public String | getNamespaceURI()
The namespace URI of this node, or null if it is
unspecified.
This is not a computed value that is the result of a namespace
lookup based on an examination of the namespace declarations in
scope. | | public Node | getNextSibling()
The node immediately following this node. | | public String | getNodeName()
The name of this node, depending on its type; see the table above. | | public short | getNodeType()
A code representing the type of the underlying object, as defined above. | | public String | getNodeValue()
The value of this node, depending on its type; see the table above. | | public Document | getOwnerDocument()
The Document object associated with this node. | | public Node | getParentNode()
The parent of this node. | | public String | getPrefix()
The namespace prefix of this node, or null if it is
unspecified. | | public Node | getPreviousSibling()
The node immediately preceding this node. | | public boolean | hasAttributes()
Returns whether this node (if it is an element) has any attributes. | | public boolean | hasChildNodes()
Returns whether this node has any children. | | public Node | insertBefore(Node newChild, Node refChild)
Inserts the node newChild before the existing child node
refChild. | | public boolean | isSupported(String feature, String version)
Tests whether the DOM implementation implements a specific feature and
that feature is supported by this node.
Parameters:
featureThe - name of the feature to test. | | public void | normalize()
Puts all Text nodes in the full depth of the sub-tree
underneath this Node, including attribute nodes, into a
"normal" form where only structure (e.g., elements, comments,
processing instructions, CDATA sections, and entity references)
separates Text nodes, i.e., there are neither adjacent
Text nodes nor empty Text nodes. | | public Node | removeChild(Node oldChild)
Removes the child node indicated by oldChild from the list
of children, and returns it.
Parameters:
oldChildThe - node being removed. | | public Node | replaceChild(Node newChild, Node oldChild)
Replaces the child node oldChild with newChild
in the list of children, and returns the oldChild node.
If newChild is a DocumentFragment object,
oldChild is replaced by all of the
DocumentFragment children, which are inserted in the
same order. | | public void | setNodeValue(String nodeValue)
| | public void | setPrefix(String prefix)
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| ATTRIBUTE_NODE | | final public static short ATTRIBUTE_NODE(Code) | | The node is an Attr.
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| CDATA_SECTION_NODE | | final public static short CDATA_SECTION_NODE(Code) | | The node is a CDATASection.
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| COMMENT_NODE | | final public static short COMMENT_NODE(Code) | | The node is a Comment.
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| DOCUMENT_FRAGMENT_NODE | | final public static short DOCUMENT_FRAGMENT_NODE(Code) | | The node is a DocumentFragment.
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| DOCUMENT_NODE | | final public static short DOCUMENT_NODE(Code) | | The node is a Document.
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| DOCUMENT_TYPE_NODE | | final public static short DOCUMENT_TYPE_NODE(Code) | | The node is a DocumentType.
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| ELEMENT_NODE | | final public static short ELEMENT_NODE(Code) | | The node is an Element.
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| ENTITY_NODE | | final public static short ENTITY_NODE(Code) | | The node is an Entity.
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| ENTITY_REFERENCE_NODE | | final public static short ENTITY_REFERENCE_NODE(Code) | | The node is an EntityReference.
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| NOTATION_NODE | | final public static short NOTATION_NODE(Code) | | The node is a Notation.
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| PROCESSING_INSTRUCTION_NODE | | final public static short PROCESSING_INSTRUCTION_NODE(Code) | | The node is a ProcessingInstruction.
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| TEXT_NODE | | final public static short TEXT_NODE(Code) | | The node is a Text node.
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| appendChild | | public Node appendChild(Node newChild) throws DOMException(Code) | | Adds the node newChild to the end of the list of children
of this node. If the newChild is already in the tree, it
is first removed.
Parameters:
newChildThe - node to add.If it is a DocumentFragmentobject, the entire contents of the document fragment are moved into the child list of this node The node added.
exception:
DOMException - HIERARCHY_REQUEST_ERR: Raised if this node is of a type that does not allow children of the type of the newChild node, or if the node to append is one of this node's ancestors.
WRONG_DOCUMENT_ERR: Raised if newChild was created from a different document than the one that created this node.
NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly. |
| cloneNode | | public Node cloneNode(boolean deep)(Code) | | Returns a duplicate of this node, i.e., serves as a generic copy
constructor for nodes. The duplicate node has no parent; (
parentNode is null.).
Cloning an Element copies all attributes and their
values, including those generated by the XML processor to represent
defaulted attributes, but this method does not copy any text it
contains unless it is a deep clone, since the text is contained in a
child Text node. Cloning an Attribute
directly, as opposed to be cloned as part of an Element
cloning operation, returns a specified attribute (
specified is true). Cloning any other type
of node simply returns a copy of this node.
Note that cloning an immutable subtree results in a mutable copy,
but the children of an EntityReference clone are readonly
. In addition, clones of unspecified Attr nodes are
specified. And, cloning Document,
DocumentType, Entity, and
Notation nodes is implementation dependent.
Parameters:
deepIf - true, recursively clone the subtree under the specified node; if false, clone only the node itself (and its attributes, if it is an Element). The duplicate node. |
| getAttributes | | public NamedNodeMap getAttributes()(Code) | | A NamedNodeMap containing the attributes of this node (if
it is an Element) or null otherwise.
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| getChildNodes | | public NodeList getChildNodes()(Code) | | A NodeList that contains all children of this node. If
there are no children, this is a NodeList containing no
nodes.
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| getFirstChild | | public Node getFirstChild()(Code) | | The first child of this node. If there is no such node, this returns
null.
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| getLastChild | | public Node getLastChild()(Code) | | The last child of this node. If there is no such node, this returns
null.
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| getLocalName | | public String getLocalName()(Code) | | Returns the local part of the qualified name of this node.
For nodes of any type other than ELEMENT_NODE and
ATTRIBUTE_NODE and nodes created with a DOM Level 1
method, such as createElement from the
Document interface, this is always null.
since:
DOM Level 2 |
| getNamespaceURI | | public String getNamespaceURI()(Code) | | The namespace URI of this node, or null if it is
unspecified.
This is not a computed value that is the result of a namespace
lookup based on an examination of the namespace declarations in
scope. It is merely the namespace URI given at creation time.
For nodes of any type other than ELEMENT_NODE and
ATTRIBUTE_NODE and nodes created with a DOM Level 1
method, such as createElement from the
Document interface, this is always null.Per
the Namespaces in XML Specification an attribute does not inherit
its namespace from the element it is attached to. If an attribute is
not explicitly given a namespace, it simply has no namespace.
since:
DOM Level 2 |
| getNextSibling | | public Node getNextSibling()(Code) | | The node immediately following this node. If there is no such node,
this returns null.
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| getNodeName | | public String getNodeName()(Code) | | The name of this node, depending on its type; see the table above.
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| getNodeType | | public short getNodeType()(Code) | | A code representing the type of the underlying object, as defined above.
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| getNodeValue | | public String getNodeValue() throws DOMException(Code) | | 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.
exception:
DOMException - NO_MODIFICATION_ALLOWED_ERR: Raised when the node is readonly.
exception:
DOMException - DOMSTRING_SIZE_ERR: Raised when it would return more characters than fit in a DOMString variable on the implementation platform. |
| getOwnerDocument | | public Document getOwnerDocument()(Code) | | The Document object associated with this node. This is
also the Document object used to create new nodes. When
this node is a Document or a DocumentType
which is not used with any Document yet, this is
null.
version:
DOM Level 2 |
| getParentNode | | public Node getParentNode()(Code) | | The parent of this node. All nodes, except Attr,
Document, DocumentFragment,
Entity, and Notation may have a parent.
However, if a node has just been created and not yet added to the
tree, or if it has been removed from the tree, this is
null.
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| getPrefix | | public String getPrefix()(Code) | | The namespace prefix of this node, or null if it is
unspecified.
Note that setting this attribute, when permitted, changes the
nodeName attribute, which holds the qualified name, as
well as the tagName and name attributes of
the Element and Attr interfaces, when
applicable.
Note also that changing the prefix of an attribute that is known to
have a default value, does not make a new attribute with the default
value and the original prefix appear, since the
namespaceURI and localName do not change.
For nodes of any type other than ELEMENT_NODE and
ATTRIBUTE_NODE and nodes created with a DOM Level 1
method, such as createElement from the
Document interface, this is always null.
exception:
DOMException - INVALID_CHARACTER_ERR: Raised if the specified prefix contains an illegal character.
NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
NAMESPACE_ERR: Raised if the specified prefix is malformed, if the namespaceURI of this node is null, if the specified prefix is "xml" and the namespaceURI of this node is different from "http://www.w3.org/XML/1998/namespace", if this node is an attribute and the specified prefix is "xmlns" and the namespaceURI of this node is different from "http://www.w3.org/2000/xmlns/", or if this node is an attribute and the qualifiedName of this node is "xmlns" .
since:
DOM Level 2 |
| getPreviousSibling | | public Node getPreviousSibling()(Code) | | The node immediately preceding this node. If there is no such node,
this returns null.
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| hasAttributes | | public boolean hasAttributes()(Code) | | Returns whether this node (if it is an element) has any attributes.
true if this node has any attributes, false otherwise.
since:
DOM Level 2 |
| hasChildNodes | | public boolean hasChildNodes()(Code) | | Returns whether this node has any children.
true if this node has any children, false otherwise. |
| insertBefore | | public Node insertBefore(Node newChild, Node refChild) throws DOMException(Code) | | Inserts the node newChild before the existing child node
refChild. If refChild is null,
insert newChild at the end of the list of children.
If newChild is a DocumentFragment object,
all of its children are inserted, in the same order, before
refChild. If the newChild is already in the
tree, it is first removed.
Parameters:
newChildThe - node to insert.
Parameters:
refChildThe - reference node, i.e., the node before which the new node must be inserted. The node being inserted.
exception:
DOMException - HIERARCHY_REQUEST_ERR: Raised if this node is of a type that does not allow children of the type of the newChild node, or if the node to insert is one of this node's ancestors.
WRONG_DOCUMENT_ERR: Raised if newChild was created from a different document than the one that created this node.
NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly or if the parent of the node being inserted is readonly.
NOT_FOUND_ERR: Raised if refChild is not a child of this node. |
| isSupported | | public boolean isSupported(String feature, String version)(Code) | | Tests whether the DOM implementation implements a specific feature and
that feature is supported by this node.
Parameters:
featureThe - name of the feature to test. This is the same name which can be passed to the method hasFeature on DOMImplementation.
Parameters:
versionThis - is the version number of the feature to test. In Level 2, version 1, this is the string "2.0". If the version is not specified, supporting any version of the feature will cause the method to return true. Returns true if the specified feature is supported on this node, false otherwise.
since:
DOM Level 2 |
| normalize | | public void normalize()(Code) | | Puts all Text nodes in the full depth of the sub-tree
underneath this Node, including attribute nodes, into a
"normal" form where only structure (e.g., elements, comments,
processing instructions, CDATA sections, and entity references)
separates Text nodes, i.e., there are neither adjacent
Text nodes nor empty Text nodes. This can
be used to ensure that the DOM view of a document is the same as if
it were saved and re-loaded, and is useful when operations (such as
XPointer lookups) that depend on a particular document tree
structure are to be used.In cases where the document contains
CDATASections, the normalize operation alone may not be
sufficient, since XPointers do not differentiate between
Text nodes and CDATASection nodes.
version:
DOM Level 2 |
| removeChild | | public Node removeChild(Node oldChild) throws DOMException(Code) | | Removes the child node indicated by oldChild from the list
of children, and returns it.
Parameters:
oldChildThe - node being removed. The node removed.
exception:
DOMException - NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
NOT_FOUND_ERR: Raised if oldChild is not a child of this node. |
| replaceChild | | public Node replaceChild(Node newChild, Node oldChild) throws DOMException(Code) | | Replaces the child node oldChild with newChild
in the list of children, and returns the oldChild node.
If newChild is a DocumentFragment object,
oldChild is replaced by all of the
DocumentFragment children, which are inserted in the
same order. If the newChild is already in the tree, it
is first removed.
Parameters:
newChildThe - new node to put in the child list.
Parameters:
oldChildThe - node being replaced in the list. The node replaced.
exception:
DOMException - HIERARCHY_REQUEST_ERR: Raised if this node is of a type that does not allow children of the type of the newChild node, or if the node to put in is one of this node's ancestors.
WRONG_DOCUMENT_ERR: Raised if newChild was created from a different document than the one that created this node.
NO_MODIFICATION_ALLOWED_ERR: Raised if this node or the parent of the new node is readonly.
NOT_FOUND_ERR: Raised if oldChild is not a child of this node. |
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