Dynamic resolution of dependent components

PLUGJN COMPONENT SOCKET 2 2 5 117 115 116 PLUGJN /"(H SOCKET q_ 102 112a SOCKET I~112b SOCKET "_ YT 112c SOCKET 1“112n INTERFACE TT7~104 HOSTAPPUCADON -q_1O1 SOCKET F~1* 105 TOOLKW -1_ | COMPONENTLOADER k"\g_1g§ MANFEST /T\\W109 | CLASSDESCRFTOR Egg/fig,“ cLAss|NsTANcE /2\ FACTORY B 110

DYNAMICALLY ACCESS, FOR A PLUG-IN INVOKED BY
AN APPLICATION, A MANIFEST LISTING CLASSES
CAPABLE OF PROVIDING AN INTERFACE FOR THE H1

PLUG-IN, AND DEPENDENT COMPONENTS THAT 5202
PROVIDE FUNCTIONALITY TO THE PLUG-IN

I

DYNAMICALLY INSTANTIATE A CLASS INSTANCE o|=
AT LEAST one or THE LISTED CLASSES /L S204

COMPONENTS J1 S205 DYNAMICALLY LOAD THE PLUG-IN I-L szos END s20?

FIG. 2

I\J
C)

_ §sEcoi\ioii\isTAr~i_cE _' _ . ' ' ' ' - PLUG-IN LIBRARY ' COMPONENT ' QM‘ '. SOCKET ,' 2314 2315 2316 317 '. 312a 302? FIRST ' _ '. FIRST INSTANCE 1 INSTANCE - '_

. ' 0 PI—UG'IN -. SEC.OND -
3120 X/r SOCKET _ . ' _'
312C -\_/ SOCKET - ' ' _ .'

| SOCKET Q
31211
INTERFACE
FIG. 3 TI 304
HOST APPLICATION fl
| SOCKET PL 301
ans
TOOL KIT --L
i COMPONENT LOADER |/\_ 3%:
MANIFEST /wk“
| CLASS DESCRIPTOR |\\J__ 33?
CLASS INSTANCE /\
FACTORY *~ 310