Examples of org.springframework.beans.factory.config.ConfigurableListableBeanFactory.preInstantiateSingletons()

org.springframework.beans.factory.config.ConfigurableListableBeanFactory.preInstantiateSingletons()
Ensure that all non-lazy-init singletons are instantiated, also considering {@link org.springframework.beans.factory.FactoryBean FactoryBeans}. Typically invoked at the end of factory setup, if desired. @throws BeansException if one of the singleton beans could not be created.Note: This may have left the factory with some beans already initialized! Call {@link #destroySingletons()} for full cleanup in this case. @see #destroySingletons()

        ConfigurableListableBeanFactory factory = new XmlBeanFactory(
                new FileSystemResource(
                        "./ch5/src/conf/interaction/shutdownHook.xml"));


        // make sure the shutdown hook is created
        factory.preInstantiateSingletons();


        DestructiveBeanWithInterface bean = (DestructiveBeanWithInterface) factory.getBean("destructiveBean");
    }
}

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        // Check for listener beans and register them.
        registerListeners();


        // Instantiate all remaining (non-lazy-init) singletons.
        beanFactory.preInstantiateSingletons();


        // Last step: publish corresponding event.
        finishRefresh();
      }

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