Examples of java.lang.annotation.Annotation

java.lang.annotation.Annotation
The common interface extended by all annotation types. Note that an interface that manually extends this one does not define an annotation type. Also note that this interface does not itself define an annotation type. @author Josh Bloch @since 1.5


  private void getEmbeddedId(List<Annotation> annotationList, XMLContext.Default defaults) {
    for ( Element element : elementsForProperty ) {
      if ( "embedded-id".equals( element.getName() ) ) {
        if ( isProcessingId( defaults ) ) {
          Annotation annotation = getAttributeOverrides( element, defaults, false );
          addIfNotNull( annotationList, annotation );
          annotation = getAssociationOverrides( element, defaults, false );
          addIfNotNull( annotationList, annotation );
          AnnotationDescriptor ad = new AnnotationDescriptor( EmbeddedId.class );
          annotationList.add( AnnotationFactory.create( ad ) );
          getAccessType( annotationList, element );
        }
      }
    }
    if ( elementsForProperty.size() == 0 && defaults.canUseJavaAnnotations() ) {
      Annotation annotation = getJavaAnnotation( EmbeddedId.class );
      if ( annotation != null ) {
        annotationList.add( annotation );
        annotation = getJavaAnnotation( Column.class );
        addIfNotNull( annotationList, annotation );
        annotation = getJavaAnnotation( Columns.class );

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  private void getId(List<Annotation> annotationList, XMLContext.Default defaults) {
    for ( Element element : elementsForProperty ) {
      if ( "id".equals( element.getName() ) ) {
        boolean processId = isProcessingId( defaults );
        if ( processId ) {
          Annotation annotation = buildColumns( element );
          addIfNotNull( annotationList, annotation );
          annotation = buildGeneratedValue( element );
          addIfNotNull( annotationList, annotation );
          getTemporal( annotationList, element );
          //FIXME: fix the priority of xml over java for generator names
          annotation = getTableGenerator( element, defaults );
          addIfNotNull( annotationList, annotation );
          annotation = getSequenceGenerator( element, defaults );
          addIfNotNull( annotationList, annotation );
          AnnotationDescriptor id = new AnnotationDescriptor( Id.class );
          annotationList.add( AnnotationFactory.create( id ) );
          getAccessType( annotationList, element );
        }
      }
    }
    if ( elementsForProperty.size() == 0 && defaults.canUseJavaAnnotations() ) {
      Annotation annotation = getJavaAnnotation( Id.class );
      if ( annotation != null ) {
        annotationList.add( annotation );
        annotation = getJavaAnnotation( Column.class );
        addIfNotNull( annotationList, annotation );
        annotation = getJavaAnnotation( Columns.class );

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          builder.in(LazySingletonScope.get());
      }
    }
    
    private boolean hasScopeAnnotation(Class<?> clazz) {
      Annotation scopeAnnotation = null;
      for (Annotation annot : clazz.getAnnotations()) {
        if (annot.annotationType().isAnnotationPresent(ScopeAnnotation.class)) {
          Preconditions.checkState(scopeAnnotation == null, "Multiple scopes not allowed");
          scopeAnnotation = annot;
        }

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   @Override
   public void proceed()
   {
      if (pos < handlers.size()) {
         AnnotationHandler<Annotation> handler = handlers.get(pos++);
         Annotation annotation = element.getAnnotation(handler.handles());
         Assert.notNull(annotation, "Could not find annotation [" + handler.handles().getName() + "] on: " + element);
         handler.process(context, annotation, this);
      }


   }

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  @Marker
  public void testMapBinderMatching() throws Exception {
    Method m = MapBinderTest.class.getDeclaredMethod("testMapBinderMatching");
    assertNotNull(m);
    final Annotation marker = m.getAnnotation(Marker.class);
    Injector injector = Guice.createInjector(new AbstractModule() {
      @Override public void configure() {
        MapBinder<Integer, Integer> mb1 =
          MapBinder.newMapBinder(binder(), Integer.class, Integer.class, Marker.class);
        MapBinder<Integer, Integer> mb2 =

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    return ProviderMethod.create(key, method, delegate, ImmutableSet.copyOf(dependencies),
        parameterProviders, scopeAnnotation, skipFastClassGeneration);
  }


  <T> Key<T> getKey(Errors errors, TypeLiteral<T> type, Member member, Annotation[] annotations) {
    Annotation bindingAnnotation = Annotations.findBindingAnnotation(errors, member, annotations);
    return bindingAnnotation == null ? Key.get(type) : Key.get(type, bindingAnnotation);
  }

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  @Marker
  public void testMatchingMarkerAnnotations() throws Exception {
    Method m = OptionalBinderTest.class.getDeclaredMethod("testMatchingMarkerAnnotations");
    assertNotNull(m);
    final Annotation marker = m.getAnnotation(Marker.class);
    Injector injector = Guice.createInjector(new AbstractModule() {
      @Override public void configure() {
        OptionalBinder<Integer> mb1 =
            OptionalBinder.newOptionalBinder(binder(), Key.get(Integer.class, Marker.class));
        OptionalBinder<Integer> mb2 =

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  @Marker
  public void testMultibinderMatching() throws Exception {
    Method m = MultibinderTest.class.getDeclaredMethod("testMultibinderMatching");
    assertNotNull(m);
    final Annotation marker = m.getAnnotation(Marker.class);
    Injector injector = Guice.createInjector(new AbstractModule() {
      @Override public void configure() {
        Multibinder<Integer> mb1 = Multibinder.newSetBinder(binder(), Integer.class, Marker.class);
        Multibinder<Integer> mb2 = Multibinder.newSetBinder(binder(), Integer.class, marker);
        mb1.addBinding().toInstance(1);

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        injector.getInstance(Key.get(collectionOfJavaxProvidersOf(stringType)));
    assertEquals(expectedValues, collectValues(javaxProviders));
  }


  public void testMultibinderCanInjectCollectionOfProvidersWithAnnotation() {
    final Annotation ann = Names.named("foo");
    Module module = new AbstractModule() {
      protected void configure() {
        final Multibinder<String> multibinder =
            Multibinder.newSetBinder(binder(), String.class, ann);
        multibinder.addBinding().toProvider(Providers.of("A"));

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        injector.getInstance(Key.get(collectionOfJavaxProvidersOf(stringType), ann));
    assertEquals(expectedValues, collectValues(javaxProviders));
  }


  public void testMultibindingProviderDependencies() {
    final Annotation setAnn = Names.named("foo");
    Injector injector = Guice.createInjector(new AbstractModule() {
        @Override protected void configure() {
          Multibinder<String> multibinder =
              Multibinder.newSetBinder(binder(), String.class, setAnn);
          multibinder.addBinding().toInstance("a");

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