J2ME Programming/SymbianOS and J2ME

__TOC__ Introduction This not a complete history of SymbianOS but in fact a summary of SymbianOS so that we as J2ME developers can determine what optional APIs we have access to by Operating System version and devices series version within the SymbianOS ecological infrastructure. There are two main device platforms that are deployed on top of SymbianOS. Nokia created Series60 and licensed it to others like Samsung. UIQ(a Pen Based UI for Symbian) is a joint effort between Sony-Ericsson, Motorola and Symbian Ltd. Base Set of MIDP, SymbianOS A brief footnote before we begin on the J2ME Platform. Before the J2ME Platform SymbianOS came with two other Java platforms, embedded java on SymbianOS 5 and the personal java and javaphone combination on SymbianOS 6. Thus, PersonalJava and JavaPhone before the Personal Profile will be mentioned here to be accurate of what OS versions have that combination. Note: Although the underlying OS does not limit Heap size, persistent storage, and etc on the later versions of Symbian the JSRs do limit the jar, jad, and persistent storage sizes in the form of JSR 185(JTWI). SymbianOS 6.x In 2002 MIDP 1.0 was back ported to SymbianOS 6 versions. The SymbianOS versions that MIDP 1.0 was back ported to are SymbianOS 6.0 and SymbianOS 6.1(Standard Java Symbian On Java http://www.symbian.com/technology/standard-java.html) Thus, we only have basic MIDP 1.0 on SymbianOS 6.0 and SymbianOS 6.1 on devices 2002 and onward. MIDP MIDP 1.0 except pausedApp is never called contrary to the MIDP 1.0 specification. CLDC 1.0 Sun's KVM Personal Java(pre Personal Profile) Modified Personal Java 3.0.x(PesonalJava Application Environment 1.1.1a) JDVMI for debug support over TCP/IP connection JavaPhone 1.0 JavaPhone 1.0 APIs Personal Java optional interfaces for serial communications, and secure socket communications (HTTPS is supported, javax.net.ssl is not implemented). Java Telephony API(JTAPI) Java Telephony Mobile SymbianOS 7.0 Has the basic MIDP 1.0 implementation(SymbOS7.x Symbian OS Version 7.0 functional description http://www.symbian.com/technology/symbos-v7x-det.html) MIDP MIDP 1.0 except pausedApp is never called contrary to the MIDP 1.0 specification. CLDC 1.0 Heap size, code size, and persistent storage size are unconstrained Over-The-Air provisioning implemented GCF including sockets implemented KVM VM Personal Java(pre Personal Profile) Modified Personal Java 3.0.x(PesonalJava Application Environment 1.1.1a) JDVMI for debug support over TCP/IP connection JavaPhone 1.0 JavaPhone 1.0 APIs Personal Java optional interfaces for serial communications, and secure socket communications (HTTPS is supported, javax.net.ssl is not implemented). Java Telephony API(JTAPI) Java Telephony Mobile SymbianOS 7.0s In this version of SymbianOS 7, MIDP 2.0 was introduced(Symbos-v7s Symbian OS Version 7.0s functional description http://www.symbian.com/technology/symbos-v7s-det.html) This MIDP 2.0 implementation includes: MIDP Over-The-Air provisioning MIDP 2.0 implementation Heap size, code size, and persistent storage size unconstrained GCF implementation includes sockets, server sockets, datagram sockets, secure sockets, HTTPS and HTTP WMA is implemented Bluetooth is implemented excluding Push and the OBEX profile CLDC1.0 implementation is supported Sun's CLDC HI VM 1.0 There are two configuration sfor this SymbianOS 7.0s version, smartphones and communicators. The communicator version does include both MIDP 2.0 described above and this PersonalJava configuration: Personal Java(pre Personal Profile) Modified Personal Java 3.0.x(PesonalJava Application Environment 1.1.1a) JDVMI for debug support over TCP/IP connection JavaPhone 1.0 JavaPhone 1.0 APIs Personal Java optional interfaces for serial communications, and secure socket communications (HTTPS is supported, javax.net.ssl is not implemented). Java Telephony API(JTAPI) Java Telephony Mobile SymbianOS 8.0 This is the first MIDP 2.0 implementation on SymbianOS with full JTWI compliance(Symbos-v8x Symbian OS Version 8.0 functional description http://www.symbian.com/technology/symbos-v8x-det.html) OTA MIDP 2.0 implementation Full JTWI implementation of the new securtiy model allowing signed MIDlets Heap size, code size, and persistent storage unconstrained Full GCF support WMA implemented Bluetooth excluding OBEX profile implemented CLDC1.1 implementation MultiMedia JSR 135 3D Graphics JSR 184 File/PIM GCF JSR 75 Sun's CLDC HI 1.1 Vm with subset of JNI SymbianOS 8.1 Implements MIDP 2.0 compliant with JTWI(Symbos-v8.1 Symbian OS Version 8.1 functional description http://www.symbian.com/technology/symbos-v81-det.html) OTA MIDP 2.0 implementation MIDP 2.0 CLDC 1.1 Heap size, code size, and persistent storage not constrained GCF implementation including all socket implementations PIM/FIle GCF JSR 75 MMedia JSR 135 3D Graphics JSR 184 Bluetooth implemented excluding OBEX profile WMA Sun's CLDC HI VM 1.0 with JNI subset SymbianOS 9.1 Implements MIDP 2.0 and JTWI(Symbos-v91 Symbian OS Version 9.1 functional description http://www.symbian.com/technology/symbos-v91-det.html) MIDP 2.0 CLDC 1.1 WMA MMedia JSR 135 3D graphics JSR1 84 Bluetooth implemented excluding OBEX profile JTWI security model Heap size, code size, and persistent storage size are unconstrained Sun's CLDC HI VM 1.0 with JNI subset Other SymbianOS Flavors Other Nokia Series Series80 Device Platform 2.0 MIDP 2.0/CLDC 1.0 from underlying SymbianOS 7.0s, specifically the communicator SymbianOS 7.0s configuration CDC and Personal Profile implemented with IBM's J9 VM Series90 Device Platform 2.0 MIDP2.0 CLDC1.1 from underlying SymbianOS 8.0 Legacy closed source Nokia UI APi in packages com.nokia.mid.ui and com.nokia.mid.sound Series60 Device Platform 1.0 Based on SymbianOS 6.1 with MIDP 1.0 and CLDC 1.0 and legacy Nokia UI APIs in packages com.nokia.mid.ui and com.nokia.mid.sound. In Nokia UI API backlight is not supported Device Platform 2.0 Feature Pack 1.0cs Based on SymbianOS 7.0s providing MIDP 2.0 and CLDC 1.0 Supports MMAPI JSR 135 Supports the other JSRs from SymbianOS 7.0s Feature Pack 2.0 Based on SymbianOS 8.0, actual kernel version is SymbianOS 8.0b with MIDP 2.0 and CLDC 1.1 All JSRs with SymbianOS 8.0 are supported Feature Pack 3.0 Based on SymbianOS 8.1 providing MIDP 2.0 and CLDC 1.1 Supports all JSRs from SymbianOS 8.1 UIQ UIQ 2.0 Based on SymbianOS 7.0 and provides MIDP 1.0 and CLDC 1.0 Supports the JSRs from SymbianOS 7.0 UIQ 2.1 Based on SymbianOS 7.0s and provides MIDP 2.0 and CLDC 1.0 Supports the JSRs from SymbianOS 7.0s Conclusion By using the information you can determine not only what versions of MIDP and CLDC are on the device but also what optional apis denoted by their JSR are accessible on the SymbianOS powered devices that you may be targeting your application development. See Also Wikibooks J2ME Programming Java Programming References Standard Java Symbian On Java http://www.symbian.com/technology/standard-java.html SymbOS7.x Symbian OS Version 7.0 functional description http://www.symbian.com/technology/symbos-v7x-det.html Symbos-v7s Symbian OS Version 7.0s functional description http://www.symbian.com/technology/symbos-v7s-det.html Symbos-v8x Symbian OS Version 8.0 functional description http://www.symbian.com/technology/symbos-v8x-det.html Symbos-v8.1 Symbian OS Version 8.1 functional description http://www.symbian.com/technology/symbos-v81-det.html Symbos-v91 Symbian OS Version 9.1 functional description http://www.symbian.com/technology/symbos-v91-det.html Trademark Notices J2ME, Java and all Java-based marks are trademarks or registered trademarks of Sun Microsystems, Inc. in the U.S. and other countries. All other Trademarks are property of their respective owners.