18 September 2014 meeting

Attendees

Greg, Eric, Conrad, TomG

Agenda

Presentation of Hydra architecture and migration path

Action Items

Conrad: Toolshed and Tools API

Greg: Session and Application object API

Eric: Continue wx ui implementation.

TomG: Continue ambient occlusion implementation

Results

​Hydra architecture and migration path slides

Session object. TomG explained Hydra Session object that holds all application global state.

Circular references. Discussed the advantages of avoiding circular dependencies between Chimera 2 modules. Previously Scooter advocated this saying Cytoscape modules have a dependency graph that is a tree and communicating to a module that is not a dependent is only done by quequeing events. Eric and TomG did not understand the value of this. Requires further discussion, maybe with Scooter.

Application class. Conrad suggested current Hydra Session be divided into an Application class and a Session class where the latter stores global state and the former initializes that state at start-up. This will allow code for different application start-up modes (e.g. nogui vs gui) to be cleanly separated.

Migration path. Discussed migration path from Hydra to a Chimera 2 release. Conrad suggests that APIs for Session, Application, ToolShed and Tools to establish the framework is an immediate need, even if such APIs are only for in-lab developers after an initial release.