Basic HTML version of Foils prepared July 9 99

Foil 73 Use of Events in JSSB

From Distance Education: How to do it DoD HPC Modernization Users Group Tutorial Monterey California, ACM Java Grande San Francisco, EDMEDIA Seattle -- June 7 99, June 14 99, June 20 99. by Geoffrey C. Fox
1 All major events are generated from minor events
  • Directly if minor event specifies a new URL
  • Indirectly if minor event specifies a form or URL click
  • Need heuristic in "general pages" to link major events to minor events
2 Minor events are sent by master via Tango to nonmasters
3 Minor events are NOT immediately processed in nonmaster but rather queued
  • otherwise events such as "set form text field" must be thrown away if page not ready to receive
4 Queues processed in two ways
  • WebWisdom minor events are queued in JSSB but processed in WebWisdom page that uses them
  • Other minor events are processed in order by JSSB in same loop that inspects page URL's
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