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2.2. Sample OSGi Application
Example of bundle dependencies リンクのコピーリンクがクリップボードにコピーされました!
リンクのコピーリンクがクリップボードにコピーされました!
Figure 2.2, “Sample OSGi Application” shows an overview of a sample OSGi application consisting of five bundles, which illustrates the basic bundle types discussed in the previous section. The application is driven by the
hello-consumer bundle, which imports a HelloParis service from the hello-paris bundle and imports a HelloBoston service from the hello-boston bundle.
Figure 2.2. Sample OSGi Application
The sample bundles リンクのコピーリンクがクリップボードにコピーされました!
リンクのコピーリンクがクリップボードにコピーされました!
The sample OSGi application consists of the following bundles:
time-util- Fits the pattern of a library bundle. The
time-utilbundle is a utility library that can createClockinstances that tell the time in a particular time zone.Thetime-utilbundle is implemented using classes from the JDK and thus has no external package dependencies. hello-paris- Fits the pattern of an API bundle. The
hello-parisbundle consists of a single Java interface, which returns a greeting,getGreeting(), and gives the local time in Paris,getLocalTime().Thehello-parisbundle has the following external package dependency:org.fusesource.example.time
org.fusesource.example.timeCopy to Clipboard Copied! Toggle word wrap Toggle overflow hello-paris-impl- Fits the pattern of a provider bundle. The
hello-paris-implbundle implements thehello-parisAPI bundle.Thehello-paris-implbundle has the following external package dependencies:org.fusesource.example.hello.paris org.fusesource.example.time
org.fusesource.example.hello.paris org.fusesource.example.timeCopy to Clipboard Copied! Toggle word wrap Toggle overflow hello-boston- Fits the pattern of an API/provider combination bundle. The
hello-bostonbundle combines a Java interface and its implementation, where the Java interface returns a greeting,getGreeting(), and gives the local time in Boston,getLocalTime().Thehello-bostonbundle has the following external package dependency:org.fusesource.example.time
org.fusesource.example.timeCopy to Clipboard Copied! Toggle word wrap Toggle overflow hello-consumer- Fits the pattern of a consumer bundle. The
hello-consumerbundle imports theHelloParisOSGi service and theHelloBostonOSGi service and then invokes on these services to report the local times in Paris and in Boston.Thehello-consumerbundle has the following external package dependencies:org.fusesource.example.hello.paris org.fusesource.example.hello.boston org.fusesource.example.time
org.fusesource.example.hello.paris org.fusesource.example.hello.boston org.fusesource.example.timeCopy to Clipboard Copied! Toggle word wrap Toggle overflow