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Difference between revisions of "Eclipse4/RCP/EAS/OSGi Services"
(New page: The Eclipse 4 dependency injection framework exposes '''OSGi services''' for consumption to clients by default. This removes a lot of the boilerplate <tt>ServiceTracker</tt> code and allow...) |
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The Eclipse 4 dependency injection framework exposes '''OSGi services''' for consumption to clients by default. This removes a lot of the boilerplate <tt>ServiceTracker</tt> code and allows clients to simply annotate a field to have an OSGi service injected. | The Eclipse 4 dependency injection framework exposes '''OSGi services''' for consumption to clients by default. This removes a lot of the boilerplate <tt>ServiceTracker</tt> code and allows clients to simply annotate a field to have an OSGi service injected. | ||
| − | ==OSGi | + | ===API Comparison=== |
| + | <table border=0> | ||
| + | |||
| + | <!-- ===================================================================== --> | ||
| + | <tr> | ||
| + | <td colspan=2> | ||
| + | <h3>Service retrieval</h3> | ||
| + | </td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td style="background:#ebd3d2;">OSGi APIS</td> | ||
| + | <td style="background:#dbf1d2;">Eclipse 4 Dependency Injection</td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td style="background:#ebd3d2;"> | ||
<source lang="java"> | <source lang="java"> | ||
public class Model { | public class Model { | ||
| Line 8: | Line 22: | ||
public Model(BundleContext ctxt) { | public Model(BundleContext ctxt) { | ||
| − | ServiceTracker tracker = new ServiceTracker<EventAdmin, EventAdmin>(ctxt, EventAdmin.class, null); | + | ServiceTracker tracker = new ServiceTracker<EventAdmin, EventAdmin>( |
| + | ctxt, EventAdmin.class, null); | ||
tracker.open(); | tracker.open(); | ||
eventAdmin = tracker.getService(); | eventAdmin = tracker.getService(); | ||
| Line 14: | Line 29: | ||
} | } | ||
</source> | </source> | ||
| − | + | </td> | |
| − | = | + | <td style="background:#dbf1d2;"> |
<source lang="java"> | <source lang="java"> | ||
public class Model { | public class Model { | ||
| Line 22: | Line 37: | ||
} | } | ||
</source> | </source> | ||
| + | </td> | ||
| + | </tr> | ||
| + | |||
| + | </table> | ||
Latest revision as of 14:09, 14 April 2011
The Eclipse 4 dependency injection framework exposes OSGi services for consumption to clients by default. This removes a lot of the boilerplate ServiceTracker code and allows clients to simply annotate a field to have an OSGi service injected.
API Comparison
Service retrieval |
|
| OSGi APIS | Eclipse 4 Dependency Injection |
public class Model { private EventAdmin eventAdmin; public Model(BundleContext ctxt) { ServiceTracker tracker = new ServiceTracker<EventAdmin, EventAdmin>( ctxt, EventAdmin.class, null); tracker.open(); eventAdmin = tracker.getService(); } } |
public class Model { @Inject private EventAdmin eventAdmin; } |