Java config: could not autowired a List.

[H Paul]

With code 1: using Java config.

The autowired is working for restTemplate.
The autowired is NOT working for thirdpartyServices

The log show ThirdpartyServiceConfiguration constructor get called.
The log show getRestTemplate get called.
The log did not show getThirdpartyServices get called.

What do I miss?

Code 1:	

	@Autowired(required = true)	
	private List<ThirdpartyService> thirdpartyServices; 
	
	@Autowired(required = true)
	private RestTemplate restTemplate;
	
	
@Configuration
public class ThirdpartyServiceConfiguration {

	private final static Log logger = LogFactory
			.getLog(ThirdpartyServiceConfiguration.class);
	
	public ThirdpartyServiceConfiguration() {
		super();
		logger.debug("enter");
		logger.debug("exit");		
	}

	@Bean
	@Scope("prototype")
	public List<ThirdpartyService> thirdpartyServices() {
		logger.debug("enter getThirdpartyServices");
		List<ThirdpartyService> thirdpartyServices = new ArrayList<ThirdpartyService>();
		thirdpartyServices.add(new ThirdpartyServiceMetroImpl(false, metroUrl);
		thirdpartyServices.add(new ThirdpartyServiceSpringImpl(true, springUrl);		
		logger.debug("exit getThirdpartyServices");	
		return thirdpartyServices;
	}
	
	@Bean(name = "restTemplate")
	@Lazy
	@Scope("prototype")
	public RestTemplate getRestTemplate() {
		logger.debug("enter getRestTemplate");
		RestTemplate restTemplate=new RestTemplate();
		logger.debug("exit getRestTemplate");	
		return restTemplate;
	}	
}

[Bill Gorder]

@Autowired works differently for collections. It would work if for example you did this

@Bean
ThirdpartyService instance1(){
...
}

@Bean
ThirdpartyService instance2(){
...
}

In this case your List would contain 2 beans of type ThirdParty service one with a name instance1 and one instance2. Basically what it does is scan the context for dependencies of that type and adds them to the collection.

If you want to do what you are doing you should use the @Resource annotation on your list.

[H Paul]

	@Resource // For List
	private List<ThirdpartyService> thirdpartyServices; 

Thanks for your @ResourceFullness. It worked. (Should we create this new tag?)