Spring Core Framework. Where are the beans located?

Question

I am a junior Java developer and I am reading spring documentation from spring.io . I read that every bean that is registered in the file *.xmlthat spring uses to resolve dependencies is declared using tags <bean> </bean>.

My question is: in what data structure is the beans held after the xml file is read and the beans are created (created)?

thank

Answer 1

, Spring, DefaultSingletonBeanRegistry , , ConcurrentHashMap . .

private final Map<String, Object> singletonObjects = new ConcurrentHashMap<String, Object>(64);

Answer 2

Map, bean ids .