OpenBandy is a free open source software library for the Java Micro Edition that simplifies the development of MIDlets by providing some basic functionalities that are per se 'missing' in the Java ME API. As every MIDlet developer will try to limit the size of the MIDlet in order to save memory that is already limited on a mobile phone, OpenBandy provides four different modules.
The foundation of OpenBandy is the basics module. Its most prominent feature is a logging framework with a Log4j-like API. Moreover, the basics module provides a nice and easy way to persistently store user preferences in the devices' record management store (RMS).
The serializer module provides serialization into XML, compressed byte streams and furthermore allows to persistently store any plain old java object (aka POJO) into the device's RMS. It uses the basics module for logging purposes and some util classes.
The events module defines some basic event types and provides a threaded event dispatcher. You are free to implement your own event types, event sources as well as event sinks. To save CPU time, an event source is only started when it is actually needed, i.e., if there is an event sink that actually registered for the specified event type.
Using all of the above mentioned modules, the client-server module provides very easy to use messaging and server services that make the development of distributed applications a matter of minutes. Moreover, the server module provides a database serializer that allows to persistently store POJOs into any JDBC-compliant database.
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