# Yahoo! UI Library

### element 2.8.1

Yahoo! UI Library > element > YAHOO.util.AttributeProvider
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## Class YAHOO.util.AttributeProvider - uses YAHOO.util.EventProvider

Provides and manages YAHOO.util.Attribute instances

### Properties

#### _configs - `private {Object}`

A key-value map of Attribute configurations

#### Properties inherited from YAHOO.util.EventProvider:

`__yui_events, __yui_subscribers`

### Methods

#### configureAttribute

`void configureAttribute ( key , map , init )`
Sets or updates an Attribute instance's properties.

Parameters:
  `key <String>` The attribute's name.
  `map <Object>` A key-value map of attribute properties
  `init <Boolean>` Whether or not this should become the intial config.

Deprecated Use setAttributeConfig

#### fireBeforeChangeEvent

`void fireBeforeChangeEvent ( key , e )`
Fires the attribute's beforeChange event.

Parameters:
  `key <String>` The attribute's name.
  `e <Obj>` The event object to pass to handlers.

#### fireChangeEvent

`void fireChangeEvent ( key , e )`
Fires the attribute's change event.

Parameters:
  `key <String>` The attribute's name.
  `e <Obj>` The event object to pass to the handlers.

#### get

`Any get ( key )`
Returns the current value of the attribute.

Parameters:
  `key <String>` The attribute whose value will be returned.

Returns: `Any`
  The current value of the attribute.

#### getAttributeConfig

`private object getAttributeConfig ( key )`
Returns the attribute's properties.

Parameters:
  `key <String>` The attribute's name

Returns: `object`
  A key-value map containing all of the attribute's properties.

#### getAttributeKeys

`Array getAttributeKeys ( )`
Returns an array of attribute names.

Returns: `Array`
  An array of attribute names.

#### refresh

`void refresh ( key , silent )`
Sets the attribute's value to its current value.

Parameters:
  `key <String | Array>` The attribute(s) to refresh
  `silent <Boolean>` Whether or not to suppress change events

#### register

`void register ( key , map )`
Adds an Attribute to the AttributeProvider instance.

Parameters:
  `key <String>` The attribute's name
  `map <Object>` A key-value map containing the attribute's properties.

Deprecated Use setAttributeConfig

#### resetAttributeConfig

`private void resetAttributeConfig ( key )`
Resets an attribute to its intial configuration.

Parameters:
  `key <String>` The attribute's name.

#### resetValue

`Boolean resetValue ( key , silent )`
Resets the specified attribute's value to its initial value.

Parameters:
  `key <String>` The name of the attribute
  `silent <Boolean>` Whether or not to suppress change events

Returns: `Boolean`
  Whether or not the value was set

#### set

`Boolean set ( key , value , silent )`
Sets the value of a config.

Parameters:
  `key <String>` The name of the attribute
  `value <Any>` The value to apply to the attribute
  `silent <Boolean>` Whether or not to suppress change events

Returns: `Boolean`
  Whether or not the value was set.

#### setAttributeConfig

`void setAttributeConfig ( key , map , init )`
Sets or updates an Attribute instance's properties.

Parameters:
  `key <String>` The attribute's name.
  `map <Object>` A key-value map of attribute properties
  `init <Boolean>` Whether or not this should become the intial config.

#### setAttributes

`void setAttributes ( map , silent )`
Sets multiple attribute values.

Parameters:
  `map <Object>` A key-value map of attributes
  `silent <Boolean>` Whether or not to suppress change events

#### Methods inherited from YAHOO.util.EventProvider:

`createEvent, fireEvent, hasEvent, subscribe, unsubscribe, unsubscribeAll`

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