JA-SIG Day3 - DLM

This is my notes. The official presentation slides will be at:

http://www.ja-sig.org/wiki/display/JCON/Denver+2007+presentations

Ref: http://www.ja-sig.org/wiki/display/UPM/

Layout Managers:

1. Simple Layout Manager - SLM (2001)
   
2. Distributed Layout Manager - DLM (2002 Sunguard)
   - officially included in 2005
   
3. AL (2003)

DLM

1. XML based configuration
2. Easy to modify Fragments
3. A user's layout is updated each time they log in
4. Version 2.0
1. Graceful fragment degradation (2.6)
2. Processor pipeline (2.6)
3. Subscribe Fragments
4. Fragment Management channel/DB based configuration

A Conception of DLM Concepts

1. Layout (view): Tabs (fragments) -- The Tree
   
2. Fragments (tabs): Columns -- the main branches
   
3. Columns (columns): Contents (channels) -- the branches
   
4. Channels (contents): the leaves..

Quick Walk Through

1. dlm.xml: defines the fragments for who to see (push), fragment attributes, and the owner.