[TYPO3-mvc] Extending ObjectStorage to get it sortable

[Webmeck - TYPO3]

Hi everybody,

I want a objectstorage which can be sorted by a method. So I have to 
extend Tx_Extbase_Persistence_ObjectStorage or is there an other way?

When I do it on my way, where should I do it? As a domain service in my 
plugin? It sounds wrong.

To convert the object storage into an array is the second way, but it 
sounds also not so good.


Thanks for help

PS: It sounds like this requirement is not so special. How should I best 
contribute my code?