Make models returned by Conditions & Functions disposable [moved]

[jonnybbb]

This is Issue 36 moved from a Google Code project.
Added by 2010-09-02T00:23:40.000Z by andrew.pietsch.
Please review that bug for more context and additional comments, but update this bug.

Original labels: Type-Defect, Priority-Medium

Original description

Computed models created by the Functions and Conditions factories aren't directly disposable.

There are two approaches: 
1) Make the resulting models implement Disposable
2) Make the Conditions/Functions non-static so you can dispose the whole lot in a manner similar to Binder etc.