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EJB

Since: May/18th/2004

EJB $B$H$O$J$s$@$m$&$+(B

EJB $B$O(B J2EE $B;EMM$K4^$^$l$k;EMM$N0l$D$G$9!#(B2004 $BG/8=:_

J2EE 1.3 $B$N(B EJB 2.0 $B$G$O!"4{B8$N(B Session Beans, Entity Beans $B$K2C$($F!"(BMessage-Driven Beans (MDB) $B$,DI2C$5$l$^$7$?!#(BEJB $B%/%i%$%"%s%H$+$i%"%/%;%92DG=$J(B Session Beans $B$H(B Entity Beans $B$H0[$J$j!"(BMDB $B$O(B JMS $B%W%m%P%$%@$H8F$P$l$k(B MOM (Message Oriented Middleware) $B$+$i8F$S=P$5$l$^$9!#(B

Session Beans
$B%/%i%$%"%s%HMW5a$rSessionBean $B$r
  • Stateful Session Bean...$B%/%i%$%"%s%H$H$N(B conversational $B>uBV$r%3%s%F%J$G0];}$7!"%/%i%$%"%s%H$,%;%C%7%g%s$r=*N;$9$k$H!"%G!<%?$rGK4~$7$^$9!#(B
  • Stateless Session Bean...$B%;%C%7%g%s$N>uBV$r1JB32=$7$^$;$s!#F0:n$,9bB.$G!"J#?t$N%/%i%$%"%s%HMW5a$rF1;~$K=hM}$G$-$^$9!#(B
    • Entity Beans
    $B1JB32=$5$l$?%G!<%?$rI=$7$^$9!#J#?t$N%/%i%$%"%s%H$+$i6&M-2DG=$G!"0l0U$N%-!<$GC5:w$G$-$^$9!#%$%s%?%U%'!<%9(B EntityBean $B$r
  • CMP (Container-Managed Persistence)...$B1JB32=$N$?$a$N%G!<%?%Y!<%9!&%"%/%;%9$r%3%s%F%J$,4IM}$7$^$9!#1JB32=$N;XDj$OG[Hw5-=R;R(B (DD, Deployment Descriptor) $B$K5-=R$7$^$9!#(Babstract $B%/%i%9$H$7$F
  • BMP (Bean-Managed Persistence)...$B1JB32=$N$?$a$N(B SQL $B$r(B bean $B$N%3!<%I$H$7$F5-=R$9$k$b$N$G$9!#6q>]%/%i%9$H$7$F
    • Message-Driven Beans
    $B%a%C%;!<%8%-%e!<$K$h$kHsF14|%H%i%s%6%/%7%g%s=hM}$N$?$a$N(B EJB $B$G$9!#%*%s%i%$%s%H%i%s%6%/%7%g%s=hM}(B (OLTP) $B$N$?$a$N(B Session Beans $B$H(B Entity Beans $B$H$O0[$J$j!"(BMDB $B$K$O(B EJB $B%/%i%$%"%s%H$+$i%"%/%;%9$G$-$:!"%a%C%;!<%8$NE~Ce$r%H%j%,!<$H$7$F MessageDrivenBean $B$H(B MessageListener $B$r

    EJB $BAmO@(B

    EJB $B$K$D$$$F$O!"(BSession Bean, Entity Bean, Message-Driven Bean $B$N;0$N(B Java $B%/%i%9!J(BEJB $B%/%i%$%"%s%H!K$+$iL@<(E*$K%"%/%;%9$G$-$k$N$O(B Session Bean $B$H(B Entity Bean $B$@$H@bL@$7$^$7$?!#(BMDB (Message-Driven Bean) $B$O(B JMS $B$N%a%C%;!<%8$NE~Ce$r%H%j%,!<$H$7$F5/F0$7$^$9!#(B

    EJB $B%/%i%$%"%s%H$+$i$O!"

    $B:G$b4pK\E*$J$b$N$,(B Remote $B%$%s%?%U%'!<%9$G$9!#(BJ2EE 1.3 (EJB 2.0) $B$K$J$C$F!"(BLocal $B%$%s%?%U%'!<%9$,DI2C$5$l$^$7$?!#(BRemote $B%$%s%?%U%'!<%9$O!"J,;6%*%V%8%'%/%H

    $B$7$+$7!"$3$N>l9g$O!"%a%=%C%I0z?t$NCM$r%3%T!<$9$kCMEO$7$G!"%Q%U%)!<%^%s%9E*$J%\%H%k%M%C%/$K$J$C$F$$$^$7$?!#$3$l$r2~A1$7$?$N$,(B Local $B%$%s%?%U%'!<%9$G!"F10l%N!<%IFb!JF10l(B JVM $BFb!K$G$N%a%=%C%I$N;2>H$G$"$l$P!"CMEO$7$G$O$J$/!";2>HEO$7$G%a%=%C%I0z?t$r

    $B=>Mh$N(B EJB $B$G$O!"J,;6%*%V%8%'%/%H$rA0Ds$K!"%N!<%I$X$N%"%W%j$N%G%W%m%a%s%H$N<+M3EY$r3NJ]$9$k$3$H$rL\E*$H$7$F$$$^$7$?!#(BLocal $B%$%s%?%U%'!<%9$O!"%G%W%m%$%a%s%H$N<+M3EY$r5>@7$K$7$F!"%Q%U%)!<%^%s%9E*$JLdBjE@$r2r7h$9$k$b$N$G$9!#(B

    Session Beans

    Entity Beans

    Message-Driven Beans

    MDB (Message-Driven Beans) $B$N$3$H$r@bL@$9$kA0$K!"(BJMS (Java Message Service) $B$K$D$$$F@bL@$9$kI,MW$,$"$j$^$9!#(B

    JMS

    JMS $B$O!"(BJ2EE 1.3 $B$GI,?\$H$5$l$?;EMM$G$9!#(BWeb $BAX$N%5!<%V%l%C%H!?(BJSP$B!"4{B8$N(B EJB $B%3%s%F%J$N(B Session Beans/Entity Beans $B$O!"F14|5!G=$H(B RMI/IIOP (RMI over IIOP) $B$r;HMQ$7$?%*%s%i%$%s%H%i%s%6%/%7%g%s=hM}(B (OLTP) $B$K$h$C$F!"%j%b!<%HDL?.$r

    $B%_%C%7%g%s%/%j%F%#%+%k$J%7%9%F%`$G$O!"%j%b!<%H4V$N@\B3$rAB$K$9$k$?$a$K!"%a%C%;!<%8%s%0!J%a%C%;!<%8!&%-%e!<%$%s%0!K$H$$$&HsF14|$N;EAH$_$r;H$C$F$-$?Nr;K$,$"$j!"4k6H4V@\B3$N%a%C%;!<%8%s%0%O%V$J$I$G!"$=$NM-MQ@-$OZ:Q$_$G$9!#(B

    $B%a%C%;!<%8%s%0$K$h$kHsF14|DL?.$N%$%s%U%i$O!"(BMOM (Messaging Oriented Middleware) $B$H8F$P$l$k%=%U%H%&%'%"$K$h$C$FDs6!$5$l$F$-$^$7$?!#%W%m%W%i%$%(%?%j$J%G%U%!%/%H%9%?%s%@!<%I$O!"(BIBM $B$N(B MQS (MQSeries) $B$G$9!#0x$_$K!"(B MQS $B$N(B v5.3 $B0J>e$G(B IBM $B$N%=%U%H%&%'%"!&%V%i%s%G%#%s%0@oN,$,JQ99$5$l!"8=:_$O(B WebSphere MQ $B$H2~>N$5$l$F$$$^$9!#(B

    $B%j%b!<%H$N%7%9%F%`$O!"%a%C%;!<%8$r%W%m%G%e!<%9!J@8;:!K$7$F!"%a%C%;!<%8%V%m!<%+!JG^2p!K$,4IM}$9$kBT$A%-%e!<$K!"%a%C%;!<%8$r(B PUT $B$7$^$9!#%m!<%+%k$N%7%9%F%`$O!"BT$A%-%e!<$r4IM}$9$k%a%C%;!<%8%V%m!<%+$+$i%a%C%;!<%8$NE~Ce$N?.9f$rCHq!K$7$^$9!#(B

    $B%a%C%;!<%8$NAw?.

    $B%a%C%;!<%8%V%m!<%+$r

    RPC

    $B>0!"(BOLTP $B$K$h$kF14|=hM}$H!"%a%C%;!<%8%s%0$K$h$kHsF14|=hM}$NCf4V$K0LCV$9$k$b$N$H$7$F!"(B RPC (Remote Procedure Call) $B$H8F$P$l$k$b$N$,$"$j$^$9!#%a%C%;!<%8!&%-%e!<%$%s%0$K$h$kHsF14|=hM}$+$i8+$l$P!"(BOLTP $B$N0l$D$J$N$G$9$,!"%+%s%P%;!<%7%g%s$r3NN)$9$k(B OLTP $B$KHf$Y$k$H!"

    RPC $B$G$O!"3F%7%9%F%`$4$H$K%9%?%V(B (stub) $B$H8F$P$l$k6-3&$K0LCV$9$k%W%m%0%i%`$rMQ0U$7$F!"3F!9$N%7%9%F%`$O!"<+?H$N%m!<%+%k$N%9%?%V$K8~$+$C$F5!G=$N8F$S=P$7$rAw$7$F!"=hM}7k2L$r

    $BC"$7!"%9%?%V$N8F$S=P$7B&$O!"%m!<%+%k$N%5%V%k!<%A%s8F$S=P$7$HF1MM$J$N$G!"=hM}7k2L$,JV$C$F$/$k$^$GBT5!!J%V%m%C%/!K$5$l$^$9$7!"8F$S=P$5$l$?B&$N%9%?%V$O!"MW5a$rF14|=hM}$9$kI,MW$,$"$k$N$G!"8D!9$NMW5a$r=hM}$7$F1~Ez$rJV$9$^$G!"N/$^$C$?MW5a$rN/$a$F$*$/%P%C%U%!!?C$5$l$?$H$-$N$?$a$N4IM}%?%9%/$J$I$r5$7$^$9!#(B

    $BF10lc~BN!J%/%i%9%?!KFb$G$b!"(BOS $B$N%7%9%F%`$r8F$S=P$9>l9g$O%9%?%V$r;H$&$3$H$,$"$j$^$9!#(BIBM MVS $B$N(B RRS (Resource Recovery Service) $B$O!"(BOS $B$G$"$k(B MVS $B$,Ds6!$9$k(B RRS $B$N%5!<%S%9$rMxMQ$9$k$?$a$K!"3F%_%I%k%&%'%"$,3F!9(B RRS $B%9%?%V$rl9g$O!"(BJava $B$G$O!"(BRMI/IIOP $B$K$h$C$Fl9g$b!"%W%m%-%7%/%i%9$,%9%?%V$H8F$P$l$k$3$H$,$"$j!"(BAX-RPC $B;EMM$K$h$C$FI8=`2=$5$l$F$$$^$9!#(B

    $B%H%i%s%6%/%7%g%s(B

    $B%H%i%s%6%/%7%g%s$H$O!"0lO"$N=hM}$NN.$l$N$3$H$G!"(BUOW (Unit of Work) $B$H8F$P$l$F$$$^$9!#%H%i%s%6%/%7%g%s$O!"(BTCP/IP $B$N%9%F!<%H%l%9$H$$$&FCD'$,Ds6!$G$-$J$$5!G=$r!"%"%W%j%1!<%7%g%s!J@=IJ$HE,MQ6HL3!K$K$h$C$F%5%]!<%H$9$k$b$N$G$"$j!"0lO"$N;E;v$NC10L$r0UL#$7$^$9!#(B

    $B$D$^$j!"0lO"$N=hM}$NESCf$G!"(BH/W $B>c32$,H/@8$9$l$P!"%P%C%/%"%C%W$+$i=hM}A0$N>uBV$KI|5l$5$l$k$7!"%=%U%H%&%'%">c32$,H/@8$9$l$P!"JQ99!?99?7$r5-O?$7$?99?7%m%0!J%H%i%s%6%/%7%g%s%m%0!K$+$i:G?7$N>uBV$^$G2sI|$9$k$b$N$G$9!#%H%i%s%6%/%7%g%s$O;E;v$NC10L(B (UOW) $B$G$"$C$F!"=hM}A0$KLa$k$+!"40N;8e$^$G?J$a$k$+$7$+$"$j$^$;$s!#$3$N$h$&$J@-

    $B%H%i%s%6%/%7%g%s$N(B ACID $BFC@-(B

    $B%H%i%s%6%/%7%g%s$NJ,N%%l%Y%k(B

    ACIS $BFC@-$N;0$DL\$NJ,N%@-!JFHN)@-!K$O!"J?9T$K$N(B UOW $B$N=hM}$,H?1G$7$J$$!?8+$($J$$$3$H$@$H$b8@$($^$9!#0lHL$K$O

    J2EE $B$N%H%i%s%6%/%7%g%s%b!<%I(B

    J2EE $B;EMM$K$O!"%H%i%s%6%/%7%g%s$r%3%s%F%J$,4IM}$9$k;EMM$G$"$k(B JTA (Java Transaction API) $B$,4^$^$l$^$9!#(BJTA $B$,5,Dj$9$k%$%s%?%U%'!<%9$N

    $B%H%i%s%6%/%7%g%s$r(B EJB $B$N%3!<%I$G4IM}$9$k>l9g$O(B BMT (Bean Managed Transaction) $B$H8F$S!"%3%s%F%J$K4IM}$rG$$9>l9g$O(B CMT (Container Managed Transaction) $B$H8F$S$^$9!#(B

    BMT $B$G$O!"%H%i%s%6%/%7%g%s$r%$%s%?%U%'!<%9(B javax.transaction.UserTransaction $B$rUserTransaction#begin() $B$G$"$j!"%3%_%C%H$O(B UserTransaction#commit() $B$K$J$j$^$9!#(B

    CMT $B$G$O!"G[Hw5-=R;R(B (DD, Deployment Descriptor) $B$K!"%H%i%s%6%/%7%g%sB0@-$H$7$F5-=R$7$^$9!#A*Br$G$-$k%H%i%s%6%/%7%g%s!&%b!<%I$O

    Entity Bean $B$G$O!"(BCMT $B$7$+MxMQ$G$-$^$;$s!#(BSession Bean $B$H(B Message-Driven Bean (MDB) $B$G$O(B BMT $B$H(B CMT $B$NN>J}$,MxMQ$G$-$^$9!#C"$7!"(BMDB $B$N>l9g$O!"(BRequired $B$+(B NotSupported $B$N2?$l$+$7$+MxMQ$G$-$^$;$s!#(B

    $BJ,N%%l%Y%k(B

    $B%G!<%?%Y!<%9$d(B MOM $B@=IJ$J$I$N%H%i%s%6%/%7%g%s$rH/@8$5$;$k@=IJ$G$O!"J,N%%l%Y%k(B (isolation level) $B$,Dj5A$5$l$F$$$^$9!#(B

    $BNc$($P!"(BIBM DB2 $B$G$NJ,N%%l%Y%k$O

    $BF1MM$K!"(BJDBC $B$G$O

    J2EE 2.0 $B;EMM$G$O!"L@3N$J5,Dj$,$"$j$^$;$s!#(BIBM WAS 5.0 $B$G$O

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