# JavaScript API Reference for Oracle ADF Faces

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| Oracle® Fusion Middleware Javascript API Reference for Oracle ADF Faces 12c (12.2.1.4.0) E81451-01
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SUMMARY: FIELD | CONSTR | METHOD DETAIL: FIELD | CONSTR | METHOD

# org.w3c.dom.core
Class Attr

    org.ecmascript.object.Object
       |
       +--org.w3c.dom.core.Node
             |
             +--org.w3c.dom.core.Attr

    public abstract class Attr
    extends Node

The Attr interface represents an attribute in an `Element` object. Typically the allowable values for the attribute are defined in a document type definition.
The attribute's effective value is determined as follows: if this attribute has been explicitly assigned any value, that value is the attribute's effective value; otherwise, if there is a declaration for this attribute, and that declaration includes a default value, then that default value is the attribute's effective value; otherwise, the attribute does not exist on this element in the structure model until it has been explicitly added. Note that the `Node.nodeValue` attribute on the `Attr` instance can also be used to retrieve the string version of the attribute's value(s).
Although `Attr` objects inherit the `Node` interface, they are not considered part of the document tree and hence the `Node` attributes `Node.parentNode`, `Node.previousSibling`, and `Node.nextSibling` have a null value for them.
In XML, where the value of an attribute can contain entity references, the child nodes of the `Attr` node may be either `Text` or `EntityReference` nodes. Because the DOM Core is not aware of attribute types, it treats all attribute values as simple strings, even if the DTD or schema declares them as having tokenized types.
Note that this object is implemented and supported by the web browser and results of its use may vary.

## Field Summary
`public String` | `name` Returns the name of this attribute.
`public Element` | `ownerElement` The Element node this attribute is attached to or null if this attribute is not in use.
`public Boolean` | `specified` If this attribute was explicitly given a value in the original document, this is true; otherwise, it is false.
`public String` | `value` On retrieval, the value of the attribute is returned as a string.

### Fields inherited from org.w3c.dom.core.Node
`ATTRIBUTE_NODE, attributes, CDATA_SECTION_NODE, childNodes, COMMENT_NODE, DOCUMENT_FRAGMENT_NODE, DOCUMENT_NODE, DOCUMENT_TYPE_NODE, ELEMENT_NODE, ENTITY_NODE, ENTITY_REFERENCE_NODE, firstChild, lastChild, localName, namespaceURI, nextSibling, nodeName, nodeType, nodeValue, NOTATION_NODE, ownerDocument, parentNode, prefix, previousSibling, PROCESSING_INSTRUCTION_NODE, TEXT_NODE`

### Fields inherited from org.ecmascript.object.Object
`constructor, prototype`

## Method Summary

### Methods inherited from org.w3c.dom.core.Node
`appendChild, cloneNode, hasAttributes, hasChildNodes, insertBefore, isSupported, normalize, removeChild, replaceChild`

## Field Detail

### name

`public String name`
  Returns the name of this attribute. This is a readonly attribute
  `
  JavaScript Code Example:
    var attr = document.createAttribute('temp');
    var output = attr.name;
  `

### ownerElement

`public Element ownerElement`
  The Element node this attribute is attached to or null if this attribute is not in use. This is a readonly attribute
  Introduced in DOM Level 2
  `
  JavaScript Code Example:
    var main = document.getElementById('doc');
    var attrib = main.getAttributeNode('id');
    var output = attrib.ownerElement.nodeName;
  `

### specified

`public Boolean specified`
  If this attribute was explicitly given a value in the original document, this is true; otherwise, it is false. Note that the implementation is in charge of this attribute, not the user. If the user changes the value of the attribute (even if it ends up having the same value as the default value) then the specified flag is automatically flipped to true. To re-specify the attribute as the default value from the DTD, the user must delete the attribute. The implementation will then make a new attribute available with specified set to false and the default value (if one exists). In summary:
  - If the attribute has an assigned value in the document then `specified` is `true` , and the value is the assigned value.
  - If the attribute has no assigned value in the document and has a default value in the DTD, then `specified` is `false` , and the value is the default value in the DTD.
  - If the attribute has no assigned value in the document and has a value of #IMPLIED in the DTD, then the attribute does not appear in the structure model of the document.
  - If the `ownerElement` attribute is `null` (i.e. because it was just created or was set to `null` by the various removal and cloning operations) `specified`is `true` .``
  This is a readonly attribute.
  JavaScript Code Example:
    var main = document.getElementById('doc');
    var attrib = main.getAttributeNode('id');
    var output = attrib.ownerElement.nodeName;

### value

`public String value`
  On retrieval, the value of the attribute is returned as a string. Character and general entity references are replaced with their values. See also the method `Element.getAttribute(String)` on the `Element` interface.
  On the Setting, this creates a `Text` node with the unparsed contents of the string. I.e. any characters that an XML processor would recognize as markup are instead treated as literal text. See also the method `Element.setAttribute(String, String)` on the `Element` interface.
  `
  JavaScript Code Example:
    var attr = document.createAttribute('temp');
    attr.value = 'temporary';
    var output = attr.value;
  `

## Method Detail

SUMMARY: FIELD | CONSTR | METHOD DETAIL: FIELD | CONSTR | METHOD

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