Example usage for org.springframework.beans.factory.config ConfigurableListableBeanFactory preInstantiateSingletons

Introduction

In this page you can find the example usage for org.springframework.beans.factory.config ConfigurableListableBeanFactory preInstantiateSingletons.

Prototype

void preInstantiateSingletons() throws BeansException;

Source Link

Document

Ensure that all non-lazy-init singletons are instantiated, also considering org.springframework.beans.factory.FactoryBean FactoryBeans .

Usage

From source file:org.springframework.context.support.AbstractApplicationContext.java

/**
 * Finish the initialization of this context's bean factory,
 * initializing all remaining singleton beans.
 *///  w ww. ja  v  a 2 s.  c  o  m
protected void finishBeanFactoryInitialization(ConfigurableListableBeanFactory beanFactory) {
    // Initialize conversion service for this context.
    if (beanFactory.containsBean(CONVERSION_SERVICE_BEAN_NAME)
            && beanFactory.isTypeMatch(CONVERSION_SERVICE_BEAN_NAME, ConversionService.class)) {
        beanFactory.setConversionService(
                beanFactory.getBean(CONVERSION_SERVICE_BEAN_NAME, ConversionService.class));
    }

    // Register a default embedded value resolver if no bean post-processor
    // (such as a PropertyPlaceholderConfigurer bean) registered any before:
    // at this point, primarily for resolution in annotation attribute values.
    if (!beanFactory.hasEmbeddedValueResolver()) {
        beanFactory.addEmbeddedValueResolver(strVal -> getEnvironment().resolvePlaceholders(strVal));
    }

    // Initialize LoadTimeWeaverAware beans early to allow for registering their transformers early.
    String[] weaverAwareNames = beanFactory.getBeanNamesForType(LoadTimeWeaverAware.class, false, false);
    for (String weaverAwareName : weaverAwareNames) {
        getBean(weaverAwareName);
    }

    // Stop using the temporary ClassLoader for type matching.
    beanFactory.setTempClassLoader(null);

    // Allow for caching all bean definition metadata, not expecting further changes.
    beanFactory.freezeConfiguration();

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

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