Interface AutowireCandidateResolver
- All Known Implementing Classes:
ContextAnnotationAutowireCandidateResolver
,GenericTypeAwareAutowireCandidateResolver
,QualifierAnnotationAutowireCandidateResolver
,SimpleAutowireCandidateResolver
public interface AutowireCandidateResolver
Strategy interface for determining whether a specific bean definition qualifies as an autowire candidate for a specific dependency.- Since:
- 2.5
- Author:
- Juergen Hoeller, Mark Fisher
Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description Object
getLazyResolutionProxyIfNecessary(DependencyDescriptor descriptor, String beanName)
Build a proxy for lazy resolution of the actual dependency target, if demanded by the injection point.Object
getSuggestedValue(DependencyDescriptor descriptor)
Determine whether a default value is suggested for the given dependency.boolean
isAutowireCandidate(BeanDefinitionHolder bdHolder, DependencyDescriptor descriptor)
Determine whether the given bean definition qualifies as an autowire candidate for the given dependency.
Method Detail
isAutowireCandidate
boolean isAutowireCandidate(BeanDefinitionHolder bdHolder, DependencyDescriptor descriptor)
Determine whether the given bean definition qualifies as an autowire candidate for the given dependency.- Parameters:
bdHolder
- the bean definition including bean name and aliasesdescriptor
- the descriptor for the target method parameter or field- Returns:
- whether the bean definition qualifies as autowire candidate
getSuggestedValue
Object getSuggestedValue(DependencyDescriptor descriptor)
Determine whether a default value is suggested for the given dependency.- Parameters:
descriptor
- the descriptor for the target method parameter or field- Returns:
- the value suggested (typically an expression String), or
null
if none found - Since:
- 3.0
getLazyResolutionProxyIfNecessary
Object getLazyResolutionProxyIfNecessary(DependencyDescriptor descriptor, String beanName)
Build a proxy for lazy resolution of the actual dependency target, if demanded by the injection point.- Parameters:
descriptor
- the descriptor for the target method parameter or fieldbeanName
- the name of the bean that contains the injection point- Returns:
- the lazy resolution proxy for the actual dependency target, or
null
if straight resolution is to be performed - Since:
- 4.0