JavaME: ????????

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JavaME ????????

• ????? ?????????
• boris.kvartskhava_at_oracle.com

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??? ????? JavaME?
- JCP Java Community Process - 2 ????????
- Standard/Enterprise - Micro Edition -
JSR Java Specification Request (?????? ??
???????????? Java) - ???????????? Java - ??
(JSR-??) ?????, ?????? - JSR 118 MIDP
2.0/2.1 - JSR 139 CLDC 1.1 -
???????????? JSR ???????? - c???????????
API ? ???? .class ??????, ? ???????? ?????
????????????? ?????????? - ??????????
(????????, ?????????? ?????? JSR)
????????, ?? ?????????? ?? ????? ???? ??????????
MMAPI (JSR135), ???? ?? ?????????? CLDC
??? CDC
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JSR ??????? ?? - ???????????? - ?????? ??????
(TCKTechnology Compatibility Kit) - ?????????
?????????? - ????????? ??? ??????????
???????????? - ???????? ???? ?????
?????? ??? ??????? ???????????? ???????????
JSR? ??????! ???? - http//jcp.org/en/home/index
? ??????? ????? ?????. ????, http//jcp.org/en/j
sr/summary?idXXX ????????, MIDP
http//jcp.org/en/jsr/summary?id118
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??????1 ????????? ???????????? MIDP
2.1 http//jcp.org/en/jsr/summary?id118 ??????2
????????? ???????????? CLDC 1.1 http//jcp.org
/en/jsr/summary?id139
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???????? ? ??????? - ??? ????? ????????? API?
??? ????? ????????? ? ????? ????????? ??????????
????? java.lang.Object (??????? ??? O) ?
????????????? CLDC 1.1 ? CDC 1.1 - ????????
????????, ??? ??? ?????? O ? CLDC 1.1 ?????
???????????? ? CDC 1.1 - ???? ?????? ? O ? CDC
1.1, ??????? ??? ? CLDC 1.1 - ??? ?????? ??????
? O ? CLDC 1.1, ??????? ???? ?? ??????
???????????? ???. - ???????????? ?????? ?????? O
? CLDC 1.1 ? CDC 1.1 - ?? ????????????.
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????? ???????, ??? ????????? ??????, ????,
?????? ??? ?????????? ???????, ?? ???????
???? ??????? API ?????????? ????????????????. ??
????? - public final void java.lang.Object.wait(
long,int) (???? ? ? CLDC 1.1 ? ? CDC 1.1) -
public class java.lang.Object - public void
java.lang.Runnable.run() - public interface
java.lang.Runnable - public class java.io.File
extends java.lang.Object implements
java.io.Serializable, java.lang.Comparable ?????
Java API ????? ????????????? ???
????????????????? (?????? ?????????? ??????,
???? ??????!).
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??? ???? ???????? ??????? ?????? ???? ???
??? ?????? ????? ?????? ???????? ? runtime ?
???? ???. ? ????????? ?????? ???????? -
????????? ?? ?????? ????????? ??? ?????. ?
????????? ??????? ???????? - ??? ?????
?????????? ? ?????????? - ???????? ???????
?????????? ??????? ????? ??????????? ?? ????
???????. ??????? ??????? ?????????????? ?????
? ?? ???????? ? ??????????? LinkageError-s.
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• JavaME
• ????? JavaME ??????????
• (??????? ???????, ????? Java ?? ????????,
• ?????????? ? ??.) ?????? ????????
• - ???????????? (Configuration) ????? ????!
• (?????? CLDC ??? CDC)
• - ??????? (???? ??? ????).
• (?????? MIDP ??? PBP)
• - ???????????? (??????????????) ??????.
• 0 ??? ????? ??.
• ??????? JSR 135(MMAPI), JSR 211(CHAPI).

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????? ??? ?????? MMAPI (JSR135) ???????????
????????? ?????/????? ???? ????????, ?? ???????
?????? ?? ???????? ???????????? ??????????
(????????, ??????? ??????????????? ? ??). ??
????? ??????????? MMAPI ?????????????
????????????.
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???????????? (????? ???? ?? ??????????!) ???? -
Connected Limited Device Configuration (CLDC)
1.1 - ????????? ??????????? ??????, ???? ?
????????- ??? ?????????? ? ??????????, ??
??????? ????? ?? ??????????? - 162
????????? ?????? ??????? - 16- ??? 32-??????
????????? - ??????? ??????-???? ????????
(????????, COM) ??????????. ???? -
Connected Device Configuration (CDC)1.1 -
???????? ??????? - ???????????? ??????. - 4
????????? ??????
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????? ????? ????????? - CLDC 1.1 -
???????????? CDC 1.1 (?????????) - CDC 1.1
???????????? JavaSE specification 1.4.2 ,
??????? ???????, ?????????????? ????????? -
?????????, ?????????? ?? ???????????? CLDC 1.1,
????? ??????????????? ? ???????? CDC 1.1 -
?????????, ?????????? ?? ???????????? CLDC 1.1
????? ???????? ?? ? ?? CLDC 1.1, ? ?? CDC 1.1
- ???????, ??? ????????? ?????????? ?? ????. CDC
1.1 ????? ???????? ?? ?LDC 1.1.
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???????????? ????????? ????? ?????? ?????????, ??
??????? ?? ????? ???????. ??????? - ?????????
????? ??????. ???????????? ??????? JavaME -
???????? ?????????? ? ???????????? ?????????. -
???????? ???????????? ????????????. ?????,
????????, ???????? ????????? ??????????. -
????????? ???? ??????????? ?????????? ?
??????????????? ?????????. - ?????? - MIDP
1.0 ??????? ?????? CLDC 1.0 - MIDP 2.0
??????? CLDC 1.0 ??? CLDC 1.1
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?????? .class (?????) ??????. ????? ????? ????
????????? - ??? java ????????? ????????????? ?
.class ????? - ??????????? ?????? ?????????
.class ????? - ? ????? ????? ????????? ??????????
? ??? ?????? ClassFile u4 magic
u2 minor_version u2 major_version
- ?????? ??????????? ?????? ????????????
?????????? ????? ?????? ????? ??????. - CLDC
1.1 ? CDC 1.1 ???? ???????????? 1.4.2,
?????????????? ???????????? ?????? lt 48.0.
???? ?????????????? ??? ? ??????? JDK 1.5, ??
?????? ????? ?????? ????? 49.0. ???????????? ?
??????? javac -target 1.4 Hello.java
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???????????? ????? (0 ??? ?????) - ????????
(??? ???????, ???????????) ?????????? ?
??????????, ?? ??????? ?? ????? ?????????. -
?????? ???????? ?????????? ???????????? ?
??????? ?????? 1 ???? JSR 75 FileConnection
??????????, ?? - ?? ?????????? ????
???????? ??????? - ???????????? - ???
?????????????? CLDC 1.0 (???????? CLDC 1.1
??? CDC 1.0 ??? 1.1) ?????? 2 - MMAPI
???????????? ???????, ????? ???????????? ????
CLDC 1.0 (??? ?????, ??????? ?? ????????) -
????????? ????????? ??? ??????? ?????? ?????????
? ??????? ????? (????????, .mp3)
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??????? (???? ???? ????? ????, ???? ???) ????????
??????? JavaME - MIDP 2.0/2.1 (JSR118)
????????? ???????? - 256 kb ??????, ?????
????, ??? ??????? CLDC - ?? ??????? (?????
?????????), - ?????????????? ??????? 96x54,
1bpp (?? ????? ??? ???????????),
?????????????? ?????????? ???????. -
?????????? (ITU-T) ??????????. -
?????????????? http - ??c??? ????????????
???????? OTA/Provisioning (??????? ???????
- ???????? ?????????? ?? ???????) - 128k
?????? ??? ??????????? ???????.
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MIDP (MIDP 2.0/2.1JSR 118, MIDP 3.0JSR
271) ????????? ???????? - ????????
??????????????? ?????? ??? - ?????? ?
???????? (?????? ? ??????
javax.microedition.lcdui) - ABB
(javax.microedition.media). ?????? ?BB
???????? ????? ? ? JSR 135 MMAPI, ??? ???
ABB ????? ???????? ???????????? MIDP ?
MMAPI. - RMS-????????? ??-????,
Record Management System - ??? ?????????
????????? ?????? (persistent storage),
??????? ?????????? ????????. ?????? 8192
??????.
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- javax.microedition.pki - ?????? ?????????
??? ????????? ?????????? ??????????. -
javax.microedition.midlet ?????? ?????????? ???
????? ????????? ?? ???????? MIDP
??????????? ???????, ?????? ????? ????? ? ????
?????????? ???? ????? - ?????????
javax.microedition.midlet.MIDlet ????????,
main (public static void main(String))
?????? ? MIDP ?? ??????????????! - ???? I/O
(????, ???????? ??????? ? ??)
javax.microedition.io. ???????? ????????, ??????
java.lang.Object ? ???????????? MIDP ???! ??
????????? ? ???????????? CLDC.
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Personal Basis Profile/Personal Profile
(PBP/PP) - ???????? - ??????????? - ????????
????????????? - Bluray ????????????? ????????
- ?????? ?????? ? ???????? - ???? ??????
?????????? javax.microedition.xlet (???
?????????? ????????? ?????????
javax.microedition.xlet.Xlet) - ???? (java.net.,
javax.microedition.io, ?????????
???????????????? ??????????????) - ????????????
JavaSE (java.security) - ???? ?????????!
(java.lang.reflect) - ?????? ? ZIP ? JAR
????????
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?????????? c MIDP ?? ????? ??????? ?? -
????????? Sony Ericsson
http//en.wikipedia.org/wiki/Sony_Ericsson_Java_Pl
atform http//dwgs3.sonyericsson.com/cws/downlo
ad/1/724/181/1268293202/dw-101478-dg_java_me_s60_r
3a.pdf - ????????? Nokia Series40 ? Series
60 http//wiki.forum.nokia.com/index.php/Java
_ME_API_support_on_Nokia_devices - ??????,
????? JSR-? ??????????? ?? ?????
??????????? http//devices.j2mepolish.org/interac
tivedb/searchdevices.faces
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?????? ?????????? - CLDC/CDC ???? ????,
?????????? ?????. ??????? ?????? ????????????
?? ???????????? ??? ????????, ? ??????? ????
??????????????? ???? ?????? ??????????????, ???
?????????????? ????? ????? ??? ????? public
static void main(String) - MIDP
javax.microedition.lcdui.MIDlet (?????) - PBP
javax.microedition.xlet.Xlet (?????????) - PP
javax.microedition.xlet.Xlet
java.applet.Applet (?????) - JavaTV (????????
????????? ? PBP) javax.tv.xlet.Xlet -
JavaSE main, java.applet.Applet
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AMS Application Management System ??
????, ??? ???????????? ???????,
?????????????????????????, ??????????? ????????
???????? ? ??????????????? (??????????) ??
??????????. ?????? ???????????????? ???
????????? Java. ?????? - Microsoft Windows
????? ?????????? ?????? ???????? -
?????????/???????? ???????? ? ??????
?????????? - ??????????? ???????
????????????? ??????????? ??????? ???????????
Windows AMS - Linux RPM ???????? ???????
??????????.
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????????? ??????? AMS (?????? Microsoft Office)
- ????? ?????????? (Application Package (AP))
???????? ????????? ?????????? ????
?????????????? ?????????? (???????, ??????????
? ??) - ?????????? (Application(A)) ????????
????? ?????. ??, ??? ????? ?????????. - AMS
????? - ????????????? (??????????????) AP
- ??????? (???????????????? AP) - ????? A ?
AP ? ????????? - ????????? AMS ?????
???????????????? AP ?? ?????????? ?
?????????????? ????????? ????? ????????? AP.
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MIDP AMS ???????? - .jar (java
application archive) ??? ???????????? ????
.zip ?????. ??????? ??????? ? ??? ??????
????????? ???? META-INF\MANIFEST.MF. ?????
???????? ??? ?????? MF. - MF ??? ?????????
???? ? ?????????? ?????????????. (????????????
http//download.oracle.com/javase/1.3/docs/guide/j
ar/jar.html) - MF ???? ???????? ??????, ?
????????? ????????? - .jar ????? ??????????
???????? ltJDKgt/bin/jar.exe
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MIDP AMSOTA/Provisioning 1. MIDP AP
MIDlet suite (?????? ?????) ??????? ?? ????
?????? - (????????????) .jar ???? ()
? ????? ??????? MIDlet-?? ?
??????????????? ????? ?????. ?? ????, .jar
? ???????? AP. .jar ??? ????? zip
????? (???? ????????? ????????)
MF ?????? ????????? ??????????? ?????????! -
(??????????????) .jad (java application
descriptor) ??????????????? ????????? ???? ?
????????? ? ??????? ?? JAR.
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MIDP AMIDlet - ?????? MIDlet ? MIDP
???????????????? ????? MIDlet Suite ID (?????????
????????) ? ??? ?????? MIDlet-?. - ? runtime
????????? ??????? ????????? ?????? ??????, ???
? ???? ??? MIDlet (???? ??????????) ?????????
???? MIDLet-? - Paused ???? ?????? ???
??????, AMS ?????? pauseApp(), ??? MIDlet
???????? AMS ?????? NotifyPaused(),
startApp(), ????????? AMS, ??????
MIDletStateChangeException (MSCE) - Active
???? ?? ????? ? ???? ?????? startApp() -
Destroyed ???? ????? destroyApp(boolean)
????????? AMS, ??????? ?????????? (??
????????? ?????? ????? booleantrue ?
destroyApp() ?????? MSCE) - MIDlet ????????
AMS ? ???, ??? ?? ????, ??????
notifyDestroyed() - ????? ?????????? ??
pauseApp() ???????? ? Destroyed!
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???????
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