The Layer Manager is the "controller" for a net.refractions.udig.project.ui in this MVC system.
The UI and plugins send it requests when net.refractions.udig.project.ui changes are required.

Functional Requirements

• Acts as Controller for net.refractions.udig.project.context in the MVC sense
• Provide FeatureSource/FeatureStore and GC access for net.refractions.udig.cores by layerRef
• Locks Features
• Transactions

Non-Functional Requirements

• Hide Locking from end user - be magic