java.lang.String | getAttribute(java.lang.String name) Retrieves an attribute value by name. |
getAttributeNode(java.lang.String name) Retrieves an attribute node by name. | |
getAttributeNodeNS(java.lang.String namespaceURI, java.lang.String localName) Retrieves an Attr node by local name and namespace URI. | |
java.lang.String | getAttributeNS(java.lang.String namespaceURI, java.lang.String localName) Retrieves an attribute value by local name and namespace URI. |
getElementsByTagName(java.lang.String name) Returns a NodeList of all descendant Elements with a given tag name, in the order in which they are encountered in a preorder traversal of this Element tree. | |
getElementsByTagNameNS(java.lang.String namespaceURI, java.lang.String localName) Returns a NodeList of all the descendant Elements with a given local name and namespace URI in the order in which they are encountered in a preorder traversal of this Element tree. | |
java.lang.String | The name of the element. |
boolean | hasAttribute(java.lang.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(java.lang.String namespaceURI, java.lang.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(java.lang.String name) Removes an attribute by name. |
removeAttributeNode(Attr oldAttr) Removes the specified attribute node. | |
void | removeAttributeNS(java.lang.String namespaceURI, java.lang.String localName) Removes an attribute by local name and namespace URI. |
void | setAttribute(java.lang.String name, java.lang.String value) Adds a new attribute. |
setAttributeNode(Attr newAttr) Adds a new attribute node. | |
setAttributeNodeNS(Attr newAttr) Adds a new attribute. | |
void | setAttributeNS(java.lang.String namespaceURI, java.lang.String qualifiedName, java.lang.String value) Adds a new attribute. |
public String getAttribute(java.lang.String name)
public Attr getAttributeNode(java.lang.String name)
getAttributeNodeNS
method.
public Attr getAttributeNodeNS(java.lang.String namespaceURI, java.lang.String localName)
Attr
node by local name and namespace URI.
public String getAttributeNS(java.lang.String namespaceURI, java.lang.String localName)
public NodeList getElementsByTagName(java.lang.String name)
NodeList
of all descendant Elements
with a given tag name, in the order in which they are encountered in
a preorder traversal of this Element
tree.
public NodeList getElementsByTagNameNS(java.lang.String namespaceURI, java.lang.String localName)
NodeList
of all the descendant
Elements
with a given local name and namespace URI in
the order in which they are encountered in a preorder traversal of
this Element
tree.
public String getTagName()
<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.
public boolean hasAttribute(java.lang.String name)
true
when an attribute with a given name is
specified on this element or has a default value, false
otherwise.
public boolean hasAttributeNS(java.lang.String namespaceURI, java.lang.String localName)
true
when an attribute with a given local name and
namespace URI is specified on this element or has a default value,
false
otherwise.
public void removeAttribute(java.lang.String name)
removeAttributeNS
method.
DOMException
- NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.public Attr removeAttributeNode(Attr oldAttr)
Attr
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, when applicable.
DOMException
- NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.public void removeAttributeNS(java.lang.String namespaceURI, java.lang.String localName)
DOMException
- NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.public void setAttribute(java.lang.String name, java.lang.String value)
Attr
node plus any
Text
and EntityReference
nodes, build the
appropriate subtree, and use setAttributeNode
to assign
it as the value of an attribute.
setAttributeNS
method.
DOMException
- INVALID_CHARACTER_ERR: Raised if the specified name contains an
illegal character.public Attr setAttributeNode(Attr newAttr)
nodeName
) is already present in the element, it is
replaced by the new one.
setAttributeNodeNS
method.
DOMException
- WRONG_DOCUMENT_ERR: Raised if newAttr was created from a
different document than the one that created the element.public Attr setAttributeNodeNS(Attr newAttr)
DOMException
- WRONG_DOCUMENT_ERR: Raised if newAttr was created from a
different document than the one that created the element.public void setAttributeNS(java.lang.String namespaceURI, java.lang.String qualifiedName, java.lang.String value)
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.
DOMException
- INVALID_CHARACTER_ERR: Raised if the specified qualified name
contains an illegal character, per the XML 1.0 specification .
Element
interface represents an element in an HTML or XML document. Elements may have attributes associated with them; since theElement
interface inherits fromNode
, the genericNode
interface attributeattributes
may be used to retrieve the set of all attributes for an element. There are methods on theElement
interface to retrieve either anAttr
object by name or an attribute value by name. In XML, where an attribute value may contain entity references, anAttr
object should be retrieved to examine the possibly fairly complex sub-tree representing the attribute value. On the other hand, in HTML, where all attributes have simple string values, methods to directly access an attribute value can safely be used as a convenience.In DOM Level 2, the methodnormalize
is inherited from theNode
interface where it was moved. See also the Document Object Model (DOM) Level 2 Core Specification.