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spring-java Given the following Spring configuratin file segment, what is the correct answer? <bean class="com.spring.service.CreditCheckServiceImpl"> <property...

spring-java

Given the following Spring configuratin file segment, what is the correct answer?

<bean class="com.spring.service.CreditCheckServiceImpl">

<property name="repository" ref="jpaDao" />

</bean>

<bean class="com.spring.repository.JpaDao">

A.

The first declared bean CreditCheckServiceImpl is missing an id. The missing id must be name creditCheckService.
B.

The second declared bean JpaDao is missing an id. The missing id must be named jpaDao.
C.

Answer A and B are both right.
D.

Answer A and B are both wrong.
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Answer #1

Answer 2 is correct. Those beans are anonymous because no id is supplied explicitly. Thus Spring container generates a unique id for that bean. It uses the fully qualified class name and appends a number to them. However, if you want to refer to that bean by name, through the use of the reference element you must provide a name .To be correct, the 2nd bean has to declare a jpaDao id attribute in order to be reference by the repository property of the first bean

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