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BEA WebLogic Server™ 8.1 Unleashed
book

BEA WebLogic Server™ 8.1 Unleashed

by Mark Artiges, Gupreet Singh Bhasin, Bernard Ciconte, Malcolm Garland, Saranathan Govindarajan, James Huang, Subramanian Kovilmadam, Kunal Mittal, Paul J. Perrone, Tom Schwenk, Steve Steffen
November 2003
Intermediate to advanced
1488 pages
36h 35m
English
Sams
Content preview from BEA WebLogic Server™ 8.1 Unleashed

Event Handling

Both COM and Java technologies support the notion of an event—something occurring dynamically at run time that a listening thread can take action on. It should come as no surprise that the mechanisms each uses to accomplish this are sufficiently incompatible. Here we'll again look to jCOM to come to the rescue and provide a transparent way of conversing between the two.

A COM class defines an event through the use of a interface—more specifically, a source interface. COM classes that implement the interface use it to subscribe to the events defined therein.

Java events are defined by an interface derived from java.util.EventListener. Java event handlers are used to respond to events. You register the events you want to have handled ...

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Publisher Resources

ISBN: 0672324873Purchase book