Examples of com.google.inject.AbstractModule

com.google.inject.AbstractModule
A support class for {@link Module}s which reduces repetition and results in a more readable configuration. Simply extend this class, implement {@link #configure()}, and call the inherited methods which mirror those found in {@link Binder}. For example:
```
 public class MyModule extends AbstractModule { protected void configure() { bind(Service.class).to(ServiceImpl.class).in(Singleton.class); bind(CreditCardPaymentService.class); bind(PaymentService.class).to(CreditCardPaymentService.class); bindConstant().annotatedWith(Names.named("port")).to(8080); } } 
```
@author crazybob@google.com (Bob Lee)

    elements.addAll(recurseForDependencies(injector, withDependencies));
    assertEquals(ImmutableSet.of("B"), elements);
  }


  public void testDependencies_default() {
    Injector injector = Guice.createInjector(new AbstractModule() {
      @Override protected void configure() {
        OptionalBinder<String> optionalbinder =
            OptionalBinder.newOptionalBinder(binder(), String.class);
        optionalbinder.setDefault().toInstance("A");
      }

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  /**
   * Doubly-installed modules should not conflict, even when one is overridden.
   */
  public void testModuleOverrideRepeatedInstalls_toInstance() {
    Module m = new AbstractModule() {
      @Override protected void configure() {
        OptionalBinder<String> b = OptionalBinder.newOptionalBinder(binder(), String.class);
        b.setDefault().toInstance("A");
        b.setBinding().toInstance("B");
      }

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  }


  public void testModuleOverrideRepeatedInstalls_toKey() {
    final Key<String> aKey = Key.get(String.class, Names.named("A_string"));
    final Key<String> bKey = Key.get(String.class, Names.named("B_string"));
    Module m = new AbstractModule() {
      @Override protected void configure() {
        bind(aKey).toInstance("A");
        bind(bKey).toInstance("B");


        OptionalBinder<String> b = OptionalBinder.newOptionalBinder(binder(), String.class);

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  public void testModuleOverrideRepeatedInstalls_toProviderInstance() {
    // Providers#of() does not redefine equals/hashCode, so use the same one both times.
    final Provider<String> aProvider = Providers.of("A");
    final Provider<String> bProvider = Providers.of("B");
    Module m = new AbstractModule() {
      @Override protected void configure() {
        OptionalBinder<String> b = OptionalBinder.newOptionalBinder(binder(), String.class);
        b.setDefault().toProvider(aProvider);
        b.setBinding().toProvider(bProvider);
      }

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      return "B";
    }
  }


  public void testModuleOverrideRepeatedInstalls_toProviderKey() {
    Module m = new AbstractModule() {
      @Override protected void configure() {
        OptionalBinder<String> b = OptionalBinder.newOptionalBinder(binder(), String.class);
        b.setDefault().toProvider(Key.get(AStringProvider.class));
        b.setBinding().toProvider(Key.get(BStringProvider.class));
      }

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      return "StringGrabber(" + string + ")";
    }
  }


  public void testModuleOverrideRepeatedInstalls_toConstructor() {
    Module m = new AbstractModule() {
      @Override protected void configure() {
        Key<String> aKey = Key.get(String.class, Names.named("A_string"));
        Key<String> bKey = Key.get(String.class, Names.named("B_string"));
        bind(aKey).toInstance("A");
        bind(bKey).toInstance("B");

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  /**
   * Unscoped bindings should not conflict, whether they were bound with no explicit scope, or
   * explicitly bound in {@link Scopes#NO_SCOPE}.
   */
  public void testDuplicateUnscopedBindings() {
    Module m = new AbstractModule() {
      @Override protected void configure() {
        OptionalBinder<Integer> b = OptionalBinder.newOptionalBinder(binder(), Integer.class);
        b.setDefault().to(Key.get(Integer.class, named("foo")));
        b.setDefault().to(Key.get(Integer.class, named("foo"))).in(Scopes.NO_SCOPE);
        b.setBinding().to(Key.get(Integer.class, named("foo")));

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  /**
   * Ensure key hash codes are fixed at injection time, not binding time.
   */
  public void testKeyHashCodesFixedAtInjectionTime() {
    Module m = new AbstractModule() {
      @Override protected void configure() {
        OptionalBinder<List<String>> b = OptionalBinder.newOptionalBinder(binder(), listOfStrings);
        List<String> list = Lists.newArrayList();
        b.setDefault().toInstance(list);
        b.setBinding().toInstance(list);

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  /**
   * Ensure bindings do not rehash their keys once returned from {@link Elements#getElements}.
   */
  public void testBindingKeysFixedOnReturnFromGetElements() {
    final List<String> list = Lists.newArrayList();
    Module m = new AbstractModule() {
      @Override protected void configure() {
        OptionalBinder<List<String>> b = OptionalBinder.newOptionalBinder(binder(), listOfStrings);
        b.setDefault().toInstance(list);
        list.add("A");
        list.add("B");

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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 =
            OptionalBinder.newOptionalBinder(binder(), Key.get(Integer.class, marker));

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