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Javolution

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Javolution
Developer(s)Jean-Marie Dautelle
Stable release
6.0.0-SNAPSHOT / September 16, 2012 (2012-09-16)
Repository
Written inJava C++
Operating systemCross-platform
Size470 KB (archived)
TypeReal-Time Library
LicenseBSD
Websitehttp://javolution.org

Javolution is a real-time library aiming to make Java or Java-Like/C++ applications faster and more time predictable. Indeed, time-predictability can easily be ruined by the use of the standard library (lazy initialization, array resizing, etc.) which is not acceptable for safety-critical systems. The open source Javolution library addresses these concerns[1] for the Java platform and provides numerous high-performance classes and utilities useful to non real-time applications as well. Such as:

  • Algorithmic parallel computing support with concurrent contexts.[2]
  • High performance implementation of standard Java packages (such as the javolution.util [3] package holding real-time java.util [4] collections implementations).
  • Context[5] programming in order to achieve true separation of concerns (logging, performance, etc.).
  • ValueType [6] and Stack [7] allocation support (thread-local pools or RTSJ ScopedMemory).
  • Struct [8] and Union [9] base classes for direct interfacing with native applications.
  • Real-Time StAX-like implementation (javolution.xml.stream [10]) (does not implement StAX-API, but resembles it, uses similar naming) which does not force object creation.
  • XML marshalling/unmarshalling [11] working with existing Java classes and supporting references (including circular references).
  • Simple yet powerful configuration management [12] for your application.

Since version 6.0, Javolution makes it easy to port any Java source code to C++ for native compilation. OSGi to and JUnit have been ported (in less than one week) and are included with the core C++ distribution.

All modules (Java and native) are built using maven.

References

  1. ^ Fully Time Deterministic Java
  2. ^ Javolution concurrent contexts
  3. ^ javolution.util
  4. ^ java.util
  5. ^ Javolution Context
  6. ^ Javolution ValueType
  7. ^ Javolution StackContext
  8. ^ Javolution Struct
  9. ^ Javolution Union
  10. ^ javolution.xml.stream
  11. ^ Javolution XML marshalling/unmarshalling
  12. ^ Javolution configuration management
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