Unique id based on the tags.
Unique id based on the tags.
The tags associated with this item.
The tags associated with this item.
Code that just needs to iterate over all tags should use this method.
Code that just needs to iterate over all tags should use this method. Allows for implementations to optimize how the tag data is stored and traversed.
Standard string representation of the id.
Standard string representation of the id.
Returns true if the item is expired and no data is available.
Returns true if the item is expired and no data is available.
(Since version ) see corresponding Javadoc for more information.