Alarm Your Java Server Apps

jAlarms 1.4 With Central Alarm Cache

Jessica Thornsby

Two default implementations of new cache with 1.4 release.

Version 1.4 of jAlarms has been announced.
jAlarms does exactly what it says on the tin – provides an alarm
system for Java server applications. Users receive notifications
via feeds such as MSN, SMS, and Twitter, regarding events in their
application. With this release, jAlarms gets a central alarm cache,
whereas previously each channel managed a cache for determining if
an alarm should be resent. There are two default implementations of
this cache. One, uses a Map to store the last time each alarm
message was sent. The other, uses memcached to store a key for
every alarm message sent, with the channel’s minimum resend
interval as its expiration time.

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