osgi 2

基础的API

BundleActivator 　　BundleContext　　ServiceReference　　HelloServiceFactory　　ServiceTracker

osgi

疑惑：

Import-Package

最最基础的bundle中包含哪些 package？

很多， org.osgi.framework 是其中一个，  org.osgi.framework.BundleActivator 则是位于其下。

为什么只导入package ‘org.osgi.framework ’ 即可，不需要导入整个org.eclipse.osgi_3.2.0.v20060601.jar bundle吗？

org.eclipse.osgi_3.2.0.v20060601.jar  对应几个bundle ————  osgi中 一个jar 只能对应一个bundle吗？ 是的！

看看其中的MANIFEST.MF就知道了吧

Manifest-Version: 1.0
Bundle-Activator: org.eclipse.osgi.framework.internal.core.SystemBundl
 eActivator
Bundle-RequiredExecutionEnvironment: J2SE-1.4,OSGi/Minimum-1.0
Export-Package: org.eclipse.osgi.event;version="1.0",org.eclipse.osgi.
 framework.console;version="1.0",org.eclipse.osgi.framework.eventmgr;v
 ersion="1.0",org.eclipse.osgi.framework.log;version="1.0",org.eclipse
 .osgi.service.datalocation;version="1.0",org.eclipse.osgi.service.deb
 ug;version="1.0",org.eclipse.osgi.service.environment;version="1.0",o
 rg.eclipse.osgi.service.localization;version="1.0",org.eclipse.osgi.s
 ervice.pluginconversion;version="1.0",org.eclipse.osgi.service.resolv
 er;version="1.0",org.eclipse.osgi.service.runnable;version="1.0",org.
 eclipse.osgi.service.urlconversion;version="1.0",org.eclipse.osgi.sto
 ragemanager;version="1.0",org.eclipse.osgi.util;version="1.0",org.osg
 i.framework;version="1.3",org.osgi.service.condpermadmin;version="1.0
 ",org.osgi.service.packageadmin;version="1.2",org.osgi.service.permis
 sionadmin;version="1.2",org.osgi.service.startlevel;version="1.0",org
 .osgi.service.url;version="1.0",org.osgi.util.tracker;version="1.3.1"
 ,org.eclipse.core.runtime.adaptor;x-friends:="org.eclipse.core.runtim
 e",org.eclipse.core.runtime.internal.adaptor;x-internal:=true,org.ecl
 ipse.core.runtime.internal.stats;x-friends:="org.eclipse.core.runtime
 ",org.eclipse.osgi.baseadaptor;x-internal:=true,org.eclipse.osgi.base
 adaptor.bundlefile;x-internal:=true,org.eclipse.osgi.baseadaptor.hook
 s;x-internal:=true,org.eclipse.osgi.baseadaptor.loader;x-internal:=tr
 ue,org.eclipse.osgi.framework.adaptor;x-internal:=true,org.eclipse.os
 gi.framework.debug;x-internal:=true,org.eclipse.osgi.framework.intern
 al.core;x-internal:=true,org.eclipse.osgi.framework.internal.protocol
 ;x-internal:=true,org.eclipse.osgi.framework.internal.protocol.bundle
 entry;x-internal:=true,org.eclipse.osgi.framework.internal.protocol.b
 undleresource;x-internal:=true,org.eclipse.osgi.framework.internal.pr
 otocol.reference;x-internal:=true,org.eclipse.osgi.framework.internal
 .reliablefile;x-internal:=true,org.eclipse.osgi.framework.launcher;x-
 internal:=true,org.eclipse.osgi.framework.util;x-internal:=true,org.e
 clipse.osgi.internal.baseadaptor;x-internal:=true,org.eclipse.osgi.in
 ternal.module;x-internal:=true,org.eclipse.osgi.internal.profile;x-in
 ternal:=true,org.eclipse.osgi.internal.resolver;x-internal:=true,org.
 eclipse.osgi.internal.verifier;x-internal:=true,org.eclipse.osgi.inte
 rnal.provisional.verifier;x-friends:="org.eclipse.update.core,org.ecl
 ipse.ui.workbench"
Bundle-Version: 3.2..v20060601
Eclipse-SystemBundle: true
Bundle-Copyright: %copyright
Bundle-Name: %systemBundle
Bundle-Description: %systemBundle
Bundle-DocUrl: http://www.eclipse.org
Bundle-ManifestVersion:
Export-Service: org.osgi.service.packageadmin.PackageAdmin,org.osgi.se
 rvice.permissionadmin.PermissionAdmin,org.osgi.service.startlevel.Sta
 rtLevel,org.eclipse.osgi.service.debug.DebugOptions
Bundle-Vendor: %eclipse.org
Main-Class: org.eclipse.core.runtime.adaptor.EclipseStarter
Bundle-SymbolicName: org.eclipse.osgi; singleton:=true
Bundle-Localization: systembundle
Eclipse-ExtensibleAPI: true