Package org.springframework.beans.factory.support

Examples of org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons()

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    DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
    Properties p = new Properties();
    p.setProperty("x1.(class)", KnowsIfInstantiated.class.getName());
    assertTrue("singleton not instantiated", !KnowsIfInstantiated.wasInstantiated());
    (new PropertiesBeanDefinitionReader(lbf)).registerBeanDefinitions(p);
    lbf.preInstantiateSingletons();
    assertTrue("singleton was instantiated", KnowsIfInstantiated.wasInstantiated());
  }

  public void testLazyInitialization() {
    KnowsIfInstantiated.clearInstantiationRecord();
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    p.setProperty("x1.(class)", KnowsIfInstantiated.class.getName());
    p.setProperty("x1.(lazy-init)", "true");
    assertTrue("singleton not instantiated", !KnowsIfInstantiated.wasInstantiated());
    (new PropertiesBeanDefinitionReader(lbf)).registerBeanDefinitions(p);
    assertTrue("singleton not instantiated", !KnowsIfInstantiated.wasInstantiated());
    lbf.preInstantiateSingletons();

    assertTrue("singleton not instantiated", !KnowsIfInstantiated.wasInstantiated());
    lbf.getBean("x1");
    assertTrue("singleton was instantiated", KnowsIfInstantiated.wasInstantiated());
  }
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    p.setProperty("x1.singleton", "false");
    assertTrue("prototype not instantiated", !DummyFactory.wasPrototypeCreated());
    (new PropertiesBeanDefinitionReader(lbf)).registerBeanDefinitions(p);
    assertTrue("prototype not instantiated", !DummyFactory.wasPrototypeCreated());
    assertEquals(TestBean.class, lbf.getType("x1"));
    lbf.preInstantiateSingletons();

    assertTrue("prototype not instantiated", !DummyFactory.wasPrototypeCreated());
    lbf.getBean("x1");
    assertEquals(TestBean.class, lbf.getType("x1"));
    assertTrue(lbf.containsBean("x1"));
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    p.setProperty("x1.(class)", DummyFactory.class.getName());
    // Reset static state
    DummyFactory.reset();
    p.setProperty("x1.singleton", "false");
    (new PropertiesBeanDefinitionReader(lbf)).registerBeanDefinitions(p);
    lbf.preInstantiateSingletons();

    assertTrue("prototype not instantiated", !DummyFactory.wasPrototypeCreated());
    String[] beanNames = lbf.getBeanNamesForType(TestBean.class, true, false);
    assertEquals(1, beanNames.length);
    assertEquals("x1", beanNames[0]);
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          // Keep compiler happy about return
          throw new IllegalStateException();
        }
      }
    });
    lbf.preInstantiateSingletons();
    TestBean tb = (TestBean) lbf.getBean("test");
    assertEquals("Name was set on field by IAPP", nameSetOnField, tb.getName());
    if (!skipPropertyPopulation) {
      assertEquals("Property value still set", ageSetByPropertyValue, tb.getAge());
    }
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    DefaultListableBeanFactory xbf = new DefaultListableBeanFactory();
    XmlBeanDefinitionReader reader = new XmlBeanDefinitionReader(xbf);
    reader.loadBeanDefinitions(new ClassPathResource("factory-methods.xml", getClass()));

    InstanceFactory.count = 0;
    xbf.preInstantiateSingletons();
    assertEquals(1, InstanceFactory.count);
    FactoryMethods fm = (FactoryMethods) xbf.getBean("instanceFactoryMethodWithoutArgs");
    assertEquals("instanceFactory", fm.getTestBean().getName());
    assertEquals(1, InstanceFactory.count);
    FactoryMethods fm2 = (FactoryMethods) xbf.getBean("instanceFactoryMethodWithoutArgs");
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    String[] names = xbf.getBeanNamesForType(FactoryMethods.class);
    assertTrue(!Arrays.asList(names).contains("listInstance"));
    names = xbf.getBeanNamesForType(List.class);
    assertTrue(Arrays.asList(names).contains("listInstance"));

    xbf.preInstantiateSingletons();
    assertTrue(List.class.isAssignableFrom(xbf.getType("listInstance")));
    names = xbf.getBeanNamesForType(FactoryMethods.class);
    assertTrue(!Arrays.asList(names).contains("listInstance"));
    names = xbf.getBeanNamesForType(List.class);
    assertTrue(Arrays.asList(names).contains("listInstance"));
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  public void testBeanDefinitionRemoval() {
    DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
    lbf.setAllowBeanDefinitionOverriding(false);
    lbf.registerBeanDefinition("test", new RootBeanDefinition(TestBean.class));
    lbf.registerAlias("test", "test2");
    lbf.preInstantiateSingletons();
    lbf.removeBeanDefinition("test");
    lbf.removeAlias("test2");
    lbf.registerBeanDefinition("test", new RootBeanDefinition(NestedTestBean.class));
    lbf.registerAlias("test", "test2");
    assertTrue(lbf.getBean("test") instanceof NestedTestBean);
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    p.setProperty("test.spouse(ref)", "singletonObject");
    p.setProperty("singletonObject.(class)", "org.springframework.beans.factory.config.PropertiesFactoryBean");
    (new PropertiesBeanDefinitionReader(lbf)).registerBeanDefinitions(p);
    Object singletonObject = new TestBean();
    lbf.registerSingleton("singletonObject", singletonObject);
    lbf.preInstantiateSingletons();

    assertTrue(lbf.isSingleton("singletonObject"));
    assertEquals(TestBean.class, lbf.getType("singletonObject"));
    TestBean test = (TestBean) lbf.getBean("test");
    assertEquals(singletonObject, lbf.getBean("singletonObject"));
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      MutablePropertyValues pvs = new MutablePropertyValues();
      pvs.addPropertyValue(new PropertyValue("spouse", new RuntimeBeanReference("bean" + (i < 99 ? i + 1 : 0))));
      RootBeanDefinition bd = new RootBeanDefinition(TestBean.class, pvs);
      lbf.registerBeanDefinition("bean" + i, bd);
    }
    lbf.preInstantiateSingletons();
    for (int i = 0; i < 1000; i++) {
      TestBean bean = (TestBean) lbf.getBean("bean" + i);
      TestBean otherBean = (TestBean) lbf.getBean("bean" + (i < 99 ? i + 1 : 0));
      assertTrue(bean.getSpouse() == otherBean);
    }
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