com.google.inject.spi.DefaultBindingScopingVisitor Java Examples

The following examples show how to use com.google.inject.spi.DefaultBindingScopingVisitor. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example #1

Source File: MultipleSingletonPluginUITest.java From n4js with Eclipse Public License 1.0

6 votes

private boolean isSingleton(Binding<?> b) {
	return b.acceptScopingVisitor(new DefaultBindingScopingVisitor<Boolean>() {
		@Override
		public Boolean visitEagerSingleton() {
			return Boolean.TRUE;
		}

		@Override
		public Boolean visitScope(Scope scope) {
			return Scopes.SINGLETON.equals(scope);
		}

		@Override
		protected Boolean visitOther() {
			return Boolean.FALSE;
		}
	});
}

Example #2

Source File: GuiceServiceModule.java From dremio-oss with Apache License 2.0

4 votes

@Override
protected void configure() {
  binder().bindListener(Matchers.any(), new ProvisionListener() {
    @Override
    public <T> void onProvision(ProvisionInvocation<T> provision) {
      final Binding<T> binding = provision.getBinding();
      logger.debug("provisioning {}", binding.getKey().getTypeLiteral());

      final T provisioned = provision.provision();

      if (provisioned != null && Service.class.isAssignableFrom(provisioned.getClass())) {
        final AtomicBoolean start = new AtomicBoolean(false);
        binding.acceptScopingVisitor(new DefaultBindingScopingVisitor<T>() {
          @Override
          public T visitEagerSingleton() {
            start.set(true);
            return super.visitEagerSingleton();
          }

          @Override
          public T visitScope(Scope scope) {
            if (scope instanceof SingletonScope) {
              start.set(true);
            }
            return super.visitScope(scope);
          }
        });

        if (start.get()) {
          serviceList.push(binding.getKey().getTypeLiteral().getRawType());
          try {
            logger.debug("starting {}", binding.getKey().getTypeLiteral());
            ((Service) provisioned).start();
          } catch (Exception e) {
            throwIfUnchecked(e);
            throw new RuntimeException(e);
          }
        }
      }
    }
  });
}