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One would not usually show so many related wrapper Components in an analysis interface diagram, however the Enum-like encapsulators of permitted values for $cache, $visibility, and $status are relevant here. For the moment they are represented as static constant attributes of wrapper Components, however one could also model them as literals of UML Enumerations.
There are many strategies for imitating Enums in PHP , but until a decision is made about which way to go, it at least helps to have some encapsulation of allowed values as shown. See also the code example below:
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'It ain't necessarily so,
It ain't necessarily so,
The t'ings dat yo' li'ble,
To read in de [Drupal6/7] Bible,
It ain't necessarily so.'
Heresy: Doctrine rejected as false by religious authorities.
Logical fallacy: Appeal to popularity, Argumentum ad populum.
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