Additional APIs available for Java ME
Java ME is based on different APIs (JSR) available in mobile devices, apart from the configuration (like CDC or CLDC) and the profile (like MIDP or Personal Profile).
You have to be sure if a device has installed an API before using it. You can check over platform information, for example for Series 40 or S60 wich JSR are available.
API Groups
There are two standards defined to reduce fragmentation, grouping many of the APIs in one platform name:
Non standard APIs
Many APIs are specific to some vendor or operator. In this category, we can find:
Standard APIs
There are 82 JSRs defined in JCP about Java ME. Many of them are still in draft and will be available in future devices and some were deprecated. The list of Java ME JSRs is http://jcp.org/en/jsr/tech?listBy=1&listByType=platform
The most common additional APIs found on mobile devices are:
- Wireless Messaging API (WMA) (JSR 120)
- Mobile Media API (MMAPI) (JSR 135)
- FileConnection & PIM API (JSR 72), also known as PDA Optional Packages
- Bluetooth API (JSR 82)
- Security and Trust Services API (SATSA) (JSR 177)
- Location API (JSR 179)
- SIP API (JSR 180)
- Mobile 3D Graphics API (JSR 184)
- Wireless Messaging API 2.0 (JSR 205)
- Content Handler API (JSR 211)
- Scalable 2D Vector Graphics API (SVG API) (JSR 226)
- Payment API (JSR 229)
- Mobile Internationalization API (JSR 238)
- Contactless API (JSR 257)
- Web Services API (JSR 172)
- JDBC for CDC (JSR 169) (this isn't available in CLDC/MIDP devices)
- Java Binding for the OpenGL ES API (JSR 239)
- Mobile Sensor API (JSR 256)]]
