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What is Bean Factory ?

A BeanFactory is factory Pattern which is based on IOC design principles.it is used to make a clear separation between application configuration and dependency from actual code.
A BeanFactory is like a factory class that contains a collection of beans. The BeanFactory holds Bean Definitions of multiple beans within itself and then instantiates the bean whenever asked for by clients.
BeanFactory is able to create associations between collaborating objects as they are instantiated. This removes the burden of configuration from bean itself and the beans client.
BeanFactory also takes part in the life cycle of a bean, making calls to custom initialization and destruction methods.

BeanFactory factory = new XmlBeanFactory(new FileInputStream("beans.xml"));

ClassPathResource resorce = new ClassPathResource("beans.xml");

XmlBeanFactory factory = new XmlBeanFactory(resorce);