Examples of org.springframework.osgi.service.importer.ServiceReferenceProxy

org.springframework.osgi.service.importer.ServiceReferenceProxy

{@link ServiceReference} extension used by Spring-DM service importers.

The interface aim is to decouple clients from the dynamics of the imported services. Without such a proxy, a target service change (when dealing with dynamic proxies), would force the corresponding service reference to changes as well causing returned references to become stale. To avoid this situation, the importer returns a proxy which is updated automatically so the client always calls the updated, correct service reference.

In most cases, users should not be aware of this interface. However, for cases where the service reference has to be reused for going service lookups and the OSGi platform demands the raw service reference class, this interface allows access to the target, unwrapped service reference instance (which does does not support service tracking and might become stale as explained above). @author Costin Leau

    ServiceReference ref = new MockServiceReference(classInterfaces);
    services.put(ref, date);


    Object proxy = proxyCreator.createServiceProxy(ref).proxy;
    assertTrue(proxy instanceof ImportedOsgiServiceProxy);
    ServiceReferenceProxy referenceProxy = ((ImportedOsgiServiceProxy) proxy).getServiceReference();
    assertNotNull(referenceProxy);
    assertSame(ref, referenceProxy.getTargetServiceReference());
  }

    services.put(ref, date);


    Object proxy = proxyCreator.createServiceProxy(ref).proxy;
    Object proxy2 = proxyCreator.createServiceProxy(ref).proxy;


    ServiceReferenceProxy referenceProxy = ((ImportedOsgiServiceProxy) proxy).getServiceReference();
    assertSame(ref, referenceProxy.getTargetServiceReference());
    ServiceReferenceProxy referenceProxy2 = ((ImportedOsgiServiceProxy) proxy2).getServiceReference();
    assertSame(ref, referenceProxy2.getTargetServiceReference());
    assertEquals(referenceProxy, referenceProxy2);
    assertFalse(referenceProxy == referenceProxy2);
  }

Examples of org.springframework.osgi.service.importer.ServiceReferenceProxy

Related Classes of org.springframework.osgi.service.importer.ServiceReferenceProxy