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My question is:

In a web application where I use context component scan rather than writing bean in xml,the beans are created automatically so if in a class I write @autowiring it's implicitly by type and there can never be multiple results in this case, which may normally occur if I use xml way of declaring like

My understanding is that in xml format when I repeat multiple beans with same class it's instantiated only once but value/property value differ each time as classes are singelton implicitly.So when I autowire in that case springs is confused which bean I am talking about but in annoations as beans are created by there own this scenario will never occur.

Is the understanding correct ?

Always a newComer
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1 Answers1

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Correct, it is done by class. If you need to autowire several beans of the same class then you can use the

@Component(value="someName")

And then select the bean you want with

@Qualifier("someName")
@Autowired
Boris the Spider
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  • you can also use @Primary to mark primary classes that should win out in case of multiple hits on an autowiring – ams Feb 16 '13 at 16:04