org.springframework.beans.factory.support

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

Modifier and Type	Method and 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 aliases

descriptor - 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 field

beanName - 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