Win a copy of Reactive Streams in Java: Concurrency with RxJava, Reactor, and Akka Streams this week in the Reactive Progamming forum!
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passed with 350/400

 
Greenhorn
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Thanks, everyone, for such great discussion. I passed with a 350/400 (new Urlybird hotel assignment). Some details:

Obviously, I don't have any details of WHY I missed points in GUI and locking. I'm trying to think of some controversial topics in these areas that I might report my choices...
I used worker threads in the GUI and popped up a modal dialog during lengthy search operations. I allowed simple sorting of records by clicking the header column of each field. I allowed a checkbox for "bookable only" that filters out records not in the 48 hour time window for booking or already booked.
For locking, I stored locks in a single static Map associated with the data file used and handed out new instances of Data to each client, storing a unique ID number and record number pair in the static collection. I also used an auto-timeout method (TimerTask) for automatically unlocking records after a few minutes.
Thanks again. Good luck to others.
 
ranger
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Congrats Perry. Great job.
I am going to move this to the Certification Results Forum.
Mark
 
author and jackaroo
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Congratulations.
Regards, Andrew
 
Ranch Hand
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congratulations
 
Ranch Hand
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Congratulations.
 
town drunk
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Maybe he went home and went to bed. And took this tiny ad with him:
Java file APIs (DOC, XLS, PDF, and many more)
https://products.aspose.com/total/java
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