Examples with Provider com.google.inject.Provider used on opensource projects

Example 56 with Provider

use of com.google.inject.Provider in project roboguice by roboguice.

the class OptionalBinderTest method testSetBinding.

public void testSetBinding() throws Exception {
    Module module = new AbstractModule() {

        @Override
        protected void configure() {
            OptionalBinder.newOptionalBinder(binder(), String.class).setBinding().toInstance("a");
        }
    };
    Injector injector = Guice.createInjector(module);
    assertEquals("a", injector.getInstance(String.class));
    Optional<String> optional = injector.getInstance(Key.get(optionalOfString));
    assertTrue(optional.isPresent());
    assertEquals("a", optional.get());
    Optional<Provider<String>> optionalP = injector.getInstance(Key.get(optionalOfProviderString));
    assertTrue(optionalP.isPresent());
    assertEquals("a", optionalP.get().get());
    Optional<javax.inject.Provider<String>> optionalJxP = injector.getInstance(Key.get(optionalOfJavaxProviderString));
    assertTrue(optionalJxP.isPresent());
    assertEquals("a", optionalJxP.get().get());
    assertOptionalVisitor(stringKey, setOf(module), VisitType.BOTH, 0, null, instance("a"), null);
    if (HAS_JAVA_OPTIONAL) {
        optional = toOptional(injector.getInstance(Key.get(javaOptionalOfString)));
        assertTrue(optional.isPresent());
        assertEquals("a", optional.get());
        optionalP = toOptional(injector.getInstance(Key.get(javaOptionalOfProviderString)));
        assertTrue(optionalP.isPresent());
        assertEquals("a", optionalP.get().get());
        optionalJxP = toOptional(injector.getInstance(Key.get(javaOptionalOfJavaxProviderString)));
        assertTrue(optionalJxP.isPresent());
        assertEquals("a", optionalJxP.get().get());
    }
}

Example 57 with Provider

use of com.google.inject.Provider in project roboguice by roboguice.

the class OptionalBinderTest method testQualifiedAggregatesTogether.

public void testQualifiedAggregatesTogether() throws Exception {
    Module module1 = new AbstractModule() {

        @Override
        protected void configure() {
            OptionalBinder.newOptionalBinder(binder(), Key.get(String.class, Names.named("foo")));
        }
    };
    Module module2 = new AbstractModule() {

        @Override
        protected void configure() {
            OptionalBinder.newOptionalBinder(binder(), Key.get(String.class, Names.named("foo"))).setDefault().toInstance("a");
        }
    };
    Module module3 = new AbstractModule() {

        @Override
        protected void configure() {
            OptionalBinder.newOptionalBinder(binder(), Key.get(String.class, Names.named("foo"))).setBinding().toInstance("b");
        }
    };
    Injector injector = Guice.createInjector(module1, module2, module3);
    assertEquals("b", injector.getInstance(Key.get(String.class, Names.named("foo"))));
    Optional<String> optional = injector.getInstance(Key.get(optionalOfString, Names.named("foo")));
    assertTrue(optional.isPresent());
    assertEquals("b", optional.get());
    Optional<Provider<String>> optionalP = injector.getInstance(Key.get(optionalOfProviderString, Names.named("foo")));
    assertTrue(optionalP.isPresent());
    assertEquals("b", optionalP.get().get());
    Optional<javax.inject.Provider<String>> optionalJxP = injector.getInstance(Key.get(optionalOfJavaxProviderString, Names.named("foo")));
    assertTrue(optionalJxP.isPresent());
    assertEquals("b", optionalJxP.get().get());
    assertOptionalVisitor(Key.get(String.class, Names.named("foo")), setOf(module1, module2, module3), VisitType.BOTH, 0, instance("a"), instance("b"), null);
    if (HAS_JAVA_OPTIONAL) {
        optional = toOptional(injector.getInstance(Key.get(javaOptionalOfString, Names.named("foo"))));
        assertTrue(optional.isPresent());
        assertEquals("b", optional.get());
        optionalP = toOptional(injector.getInstance(Key.get(javaOptionalOfProviderString, Names.named("foo"))));
        assertTrue(optionalP.isPresent());
        assertEquals("b", optionalP.get().get());
        optionalJxP = toOptional(injector.getInstance(Key.get(javaOptionalOfJavaxProviderString, Names.named("foo"))));
        assertTrue(optionalJxP.isPresent());
        assertEquals("b", optionalJxP.get().get());
    }
}

Example 58 with Provider

use of com.google.inject.Provider in project roboguice by roboguice.

the class OptionalBinderTest method testSetBindingOverridesDefault.

public void testSetBindingOverridesDefault() throws Exception {
    Module module = new AbstractModule() {

        @Override
        protected void configure() {
            OptionalBinder<String> optionalBinder = OptionalBinder.newOptionalBinder(binder(), String.class);
            optionalBinder.setDefault().toInstance("a");
            optionalBinder.setBinding().toInstance("b");
        }
    };
    Injector injector = Guice.createInjector(module);
    assertEquals("b", injector.getInstance(String.class));
    Optional<String> optional = injector.getInstance(Key.get(optionalOfString));
    assertTrue(optional.isPresent());
    assertEquals("b", optional.get());
    Optional<Provider<String>> optionalP = injector.getInstance(Key.get(optionalOfProviderString));
    assertTrue(optionalP.isPresent());
    assertEquals("b", optionalP.get().get());
    Optional<javax.inject.Provider<String>> optionalJxP = injector.getInstance(Key.get(optionalOfJavaxProviderString));
    assertTrue(optionalJxP.isPresent());
    assertEquals("b", optionalJxP.get().get());
    assertOptionalVisitor(stringKey, setOf(module), VisitType.BOTH, 0, instance("a"), instance("b"), null);
    if (HAS_JAVA_OPTIONAL) {
        optional = toOptional(injector.getInstance(Key.get(javaOptionalOfString)));
        assertTrue(optional.isPresent());
        assertEquals("b", optional.get());
        optionalP = toOptional(injector.getInstance(Key.get(javaOptionalOfProviderString)));
        assertTrue(optionalP.isPresent());
        assertEquals("b", optionalP.get().get());
        optionalJxP = toOptional(injector.getInstance(Key.get(javaOptionalOfJavaxProviderString)));
        assertTrue(optionalJxP.isPresent());
        assertEquals("b", optionalJxP.get().get());
    }
}

Example 59 with Provider

use of com.google.inject.Provider in project roboguice by roboguice.

the class OptionalBinderTest method testLinkedToNullProvidersMakeAbsentValuesAndPresentProviders_default.

public void testLinkedToNullProvidersMakeAbsentValuesAndPresentProviders_default() throws Exception {
    Module module = new AbstractModule() {

        @Override
        protected void configure() {
            OptionalBinder.newOptionalBinder(binder(), String.class).setDefault().toProvider(Providers.<String>of(null));
        }
    };
    Injector injector = Guice.createInjector(module);
    assertNull(injector.getInstance(String.class));
    Optional<String> optional = injector.getInstance(Key.get(optionalOfString));
    assertFalse(optional.isPresent());
    Optional<Provider<String>> optionalP = injector.getInstance(Key.get(optionalOfProviderString));
    assertTrue(optionalP.isPresent());
    assertNull(optionalP.get().get());
    Optional<javax.inject.Provider<String>> optionalJxP = injector.getInstance(Key.get(optionalOfJavaxProviderString));
    assertTrue(optionalJxP.isPresent());
    assertNull(optionalJxP.get().get());
    assertOptionalVisitor(stringKey, setOf(module), VisitType.BOTH, 0, SpiUtils.<String>providerInstance(null), null, null);
    if (HAS_JAVA_OPTIONAL) {
        optional = toOptional(injector.getInstance(Key.get(javaOptionalOfString)));
        assertFalse(optional.isPresent());
        optionalP = toOptional(injector.getInstance(Key.get(javaOptionalOfProviderString)));
        assertTrue(optionalP.isPresent());
        assertNull(optionalP.get().get());
        optionalJxP = toOptional(injector.getInstance(Key.get(javaOptionalOfJavaxProviderString)));
        assertTrue(optionalJxP.isPresent());
        assertNull(optionalJxP.get().get());
    }
}

Example 60 with Provider

use of com.google.inject.Provider in project roboguice by roboguice.

the class OptionalBinderTest method testLinkedToNullActualDoesntFallbackToDefault.

// TODO(sameb): Maybe change this?
public void testLinkedToNullActualDoesntFallbackToDefault() throws Exception {
    Module module = new AbstractModule() {

        @Override
        protected void configure() {
            OptionalBinder.newOptionalBinder(binder(), String.class).setDefault().toInstance("a");
            OptionalBinder.newOptionalBinder(binder(), String.class).setBinding().toProvider(Providers.<String>of(null));
        }
    };
    Injector injector = Guice.createInjector(module);
    assertNull(injector.getInstance(String.class));
    Optional<String> optional = injector.getInstance(Key.get(optionalOfString));
    assertFalse(optional.isPresent());
    Optional<Provider<String>> optionalP = injector.getInstance(Key.get(optionalOfProviderString));
    assertTrue(optionalP.isPresent());
    assertNull(optionalP.get().get());
    Optional<javax.inject.Provider<String>> optionalJxP = injector.getInstance(Key.get(optionalOfJavaxProviderString));
    assertTrue(optionalJxP.isPresent());
    assertNull(optionalP.get().get());
    assertOptionalVisitor(stringKey, setOf(module), VisitType.BOTH, 0, instance("a"), SpiUtils.<String>providerInstance(null), null);
    if (HAS_JAVA_OPTIONAL) {
        optional = toOptional(injector.getInstance(Key.get(javaOptionalOfString)));
        assertFalse(optional.isPresent());
        optionalP = toOptional(injector.getInstance(Key.get(javaOptionalOfProviderString)));
        assertTrue(optionalP.isPresent());
        assertNull(optionalP.get().get());
        optionalJxP = toOptional(injector.getInstance(Key.get(javaOptionalOfJavaxProviderString)));
        assertTrue(optionalJxP.isPresent());
        assertNull(optionalJxP.get().get());
    }
}