Java – spring auto assembly of parameterized collections

Hello everyone, thank you for your help

I have a problem that spring cannot automatically assemble parameterized member variables of arrayblockingqueue type

This is java code:

@Controller
public class SomeController
{
    @Autowired
    private ArrayBlockingQueue<SomeCustomType> myQueue;
}

And in the spring configuration XML:

<bean id="myQueue" class="java.util.concurrent.ArrayBlockingQueue">
    <constructor-arg value="10"/>
</bean>

Specifying a type (somecustomtype) for arrayblockingqueue seems confusing. Spring cannot find a match and does not perform automatic assembly

Any ideas on how to make it work? I know I can create my own wrapper class (around arrayblockingqueue). This class is not parameterized, but I'd rather not know if there is a better way to solve this problem

Solution

If you try to connect collections automatically using annotations, @ resource is used instead of @ Autowired

To satisfy the @ Autowired collection dependency, the IOC container looks for elements of the correct type to build such a collection In other words, it does not look for the collection itself, but builds the collection from other beans

For more information, refer to the spring documentation, for example here.