Map var2 = this.bfgInstancesByKey; synchronized(this.bfgInstancesByKey) { 疑惑

yyqhwr

于 2018-10-25 14:55:15 发布

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分类专栏： # springFramwork

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org.springframework.beans.factory.access.SingletonBeanFactoryLocator#useBeanFactory

public BeanFactoryReference useBeanFactory(String factoryKey) throws BeansException {
    Map var2 = this.bfgInstancesByKey;
    synchronized(this.bfgInstancesByKey) {//为什么重新定义var2变量，下面又没有使用
        SingletonBeanFactoryLocator.BeanFactoryGroup bfg = (SingletonBeanFactoryLocator.BeanFactoryGroup)this.bfgInstancesByKey.get(this.resourceLocation);
        BeanFactory beanFactory;
        if (bfg != null) {
            bfg.refCount++;
        } else {