Yahoo! UI Library

element  2.5.0

Yahoo! UI Library > element > YAHOO.util.Attribute

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Class YAHOO.util.Attribute

Provides Attribute configurations.

Constructor

YAHOO.util.Attribute ( hash , The )
Parameters:
hash <Object> The intial Attribute.
The <YAHOO.util.AttributeProvider> owner of the Attribute instance.

Properties

_initialConfig - private Object

The attribute's initial configuration.

_written - private Boolean

Whether or not the attribute's value has been set.

method - Function

The method to use when setting the attribute's value. The method recieves the new value as the only argument.

name - String

The name of the attribute.

owner - YAHOO.util.AttributeProvider

The owner of the attribute.

readOnly - Boolean

Whether or not the attribute is read only.

validator - Function

The validator to use when setting the attribute's value.

value - String

The value of the attribute.

writeOnce - Boolean

Whether or not the attribute can only be written once.

Methods

configure

void configure ( map , init )
Allows for configuring the Attribute's properties.
Parameters:
map <Object> A key-value map of Attribute properties.
init <Boolean> Whether or not this should become the initial config.
Returns: void

getValue

any getValue ( )
Retrieves the current value of the attribute.
Returns: any
The current value of the attribute.

refresh

Boolean refresh ( )
Resets the value to the current value. Useful when values may have gotten out of sync with actual properties.
Returns: Boolean
Whether or not the value was set.

resetConfig

void resetConfig ( )
Resets the attribute config to the initial config state.
Returns: void

resetValue

Boolean resetValue ( )
Resets the value to the initial config value.
Returns: Boolean
Whether or not the value was set.

setValue

Boolean setValue ( value , silent )
Sets the value of the attribute and fires beforeChange and change events.
Parameters:
value <Any> The value to apply to the attribute.
silent <Boolean> If true the change events will not be fired.
Returns: Boolean
Whether or not the value was set.

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