jse
JXME 2.1.2
JXTA technology is a set of open protocols that allow any connected device on the network ranging. more>>
JXTA peers create a virtual network where any peer can interact with other peers and resources directly even when some of the peers and resources are behind firewalls and NATs or are on different network transports.
The project goals are interoperability across different peer-to-peer systems and communities, multiple/diverse languages, systems, platform independence and networks, and ubiquity: every device with a digital heartbeat.
Main features:
Discovery:
- Pipes. An application is able to search for a named pipes created by other Peers.
- Groups. An application is able to discover a JXTA group and join it.
- Contents. Applications are able to discover application specific contents.
Create:
- Pipes. An application is able to create pipes - both point-to-point and propagate pipes.
- Groups. An application is able to create peer groups to limit the scope of discovery.
- Contents. Application specific contents.
Join Groups An application is able to join a given group as per JXTA spec.
Communicate An application is able to communicate with other JXTA users through JXTA pipes (unicast, propagate)
- Listed below are a few of the critical constraints imposed by cell phones and like devices. JXTA-J2ME is
- designed to provide P2P functionality within these limitations. Next generation devices may have a
- lesser constraints than the one currently-available.
- 50k MIDlet size Current cell phones have a total limit of about 123K for storing all MIDlet suites. In addition, Motorola phones currently limit each MIDlet to be no more than 50K and NTT DoCoMo phones limit MIDlets to 30K.
- Persistent storage on cell phones can be as little as 8K which is shared by all the MIDlets.
- Runtime heap is of the order of 32K - 64K
- Bandwidth is very limited and latency is high
- CPU power is very limited - around 20MHz.
- Battery life is very critical.
- Limited libraries MIDP-2.0
Enhancements:
- Backports of a number of bugfixes from JXTA JSE.
- This release no longer requires a persistent store for configuration files.
jlGui for Linux 3.0
a music player for the Java platform. more>> jlGui is a music player for the Java platform. It is based on Java Sound 1.0 (i.e. JDK 1.3+). It supports WAV, AU, AIFF, MP3, OGG VORBIS, FLAC, MONKEYs AUDIO and SPEEX audio formats. User Interface is WinAmp skins 2.0 compliant. It provides M3U and PLS support (Playlist).
Spectrum/Time visual added.
FLAC audio format support added.
Monkeys Audio format support added.
Search in playlist feature added.
Preferences panel improved :
Skin browser, spectrum analyzer setup, JavaSound device setup, system properties.
Skin support improved :
Spline for equalizer, keyboard shortcuts, drag&drop support for playlist, rollover on playlist pop-up menus.
Pop-up menus improved : Play File/Location, playlist editor switch, equalizer switch, jump to file feature.
Misc :
Front-end refactored from AWT to SWING, codecs updated, JSE 1.6RC support added.<<less
Java Platform Invoke API Demo (Linux) 2.01.04
Java Platform Invoke API (Demo version) for Linux, i386. Enables Java code to call native functions implemented in shared libraries like in Microsoft .NET Framework. Written for JSE 1.5.x and later. more>>
Java Platform Invoke API Demo (Linux) - Java Platform Invoke API (Demo version) for Linux/Unix, i386.
Enables Java code to call native functions implemented in shared link libraries like in Microsoft .NET Framework. Written for JSE 1.5.x and later.
Java platform invoke an API that enables Java code to call native functions implemented in shared libraries, such as those in the Linux API. It locates and invokes an exported function and marshals its arguments (integers, strings, arrays, structures, and so on) across the interoperation boundary as needed. This API supports implicit marshaling that makes Java coding with native functions very simple.
To consume a shared library functions you need
1.Identify functions in shared librarys.
Minimally, you must specify the name of the function and name of the the shared library that contains it.
2.Create a class to hold shared library functions.
You can use an existing class, create an individual class for each native function, or create one class that contains a set of related native functions. This class should extend CNativeLibrary. Use the annotation ImportLibrary to bind your class to the native library.
3.Create prototypes in Java code.
Write prototype of a native function as a method with signature that corresponds to the native function using data type map agreement. To identify the native function use the annotation Function. Mark the method with the native modifier.
4.Call a shared library function.
Call the method on your Java class as you would any other Java method. As parameters can be passed structures and implemented in Java callback functions.
Enhancements:
Version 2.01.04
System Requirements:JSE 1.5.x<<less
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