org.springframework.beans.factory.support

Class GenericTypeAwareAutowireCandidateResolver

java.lang.Object

org.springframework.beans.factory.support.GenericTypeAwareAutowireCandidateResolver

All Implemented Interfaces:

Aware, BeanFactoryAware, AutowireCandidateResolver

Direct Known Subclasses:

QualifierAnnotationAutowireCandidateResolver

public class GenericTypeAwareAutowireCandidateResolver
extends Object
implements AutowireCandidateResolver, BeanFactoryAware

Basic AutowireCandidateResolver that performs a full generic type match with the candidate's type if the dependency is declared as a generic type (e.g. Repository<Customer>).

This is the base class for QualifierAnnotationAutowireCandidateResolver, providing an implementation all non-annotation-based resolution steps at this level.

Since:

4.0

Author:

Juergen Hoeller

Constructor Summary

Constructors

Constructor and Description
GenericTypeAwareAutowireCandidateResolver()

Method Summary

Modifier and Type	Method and Description
protected boolean	checkGenericTypeMatch(BeanDefinitionHolder bdHolder, DependencyDescriptor descriptor) Match the given dependency type with its generic type information against the given candidate bean definition.
protected BeanFactory	getBeanFactory()
Object	getLazyResolutionProxyIfNecessary(DependencyDescriptor descriptor, String beanName) This implementation always returns null, leaving lazy resolution support up to subclasses.
protected RootBeanDefinition	getResolvedDecoratedDefinition(RootBeanDefinition rbd)
protected ResolvableType	getReturnTypeForFactoryMethod(RootBeanDefinition rbd, DependencyDescriptor descriptor)
Object	getSuggestedValue(DependencyDescriptor descriptor) This implementation always returns null, leaving suggested value support up to subclasses.
boolean	isAutowireCandidate(BeanDefinitionHolder bdHolder, DependencyDescriptor descriptor) Determine whether the given bean definition qualifies as an autowire candidate for the given dependency.
void	setBeanFactory(BeanFactory beanFactory) Callback that supplies the owning factory to a bean instance.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GenericTypeAwareAutowireCandidateResolver

public GenericTypeAwareAutowireCandidateResolver()

Method Detail

setBeanFactory

public void setBeanFactory(BeanFactory beanFactory)

Description copied from interface: BeanFactoryAware

Callback that supplies the owning factory to a bean instance.

Invoked after the population of normal bean properties but before an initialization callback such as InitializingBean.afterPropertiesSet() or a custom init-method.

Specified by:

setBeanFactory in interface BeanFactoryAware

Parameters:

beanFactory - owning BeanFactory (never null). The bean can immediately call methods on the factory.

See Also:

BeanInitializationException

getBeanFactory

protected final BeanFactory getBeanFactory()

isAutowireCandidate

public boolean isAutowireCandidate(BeanDefinitionHolder bdHolder,
                                   DependencyDescriptor descriptor)

Description copied from interface: AutowireCandidateResolver

Determine whether the given bean definition qualifies as an autowire candidate for the given dependency.

Specified by:

isAutowireCandidate in interface AutowireCandidateResolver

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

checkGenericTypeMatch

protected boolean checkGenericTypeMatch(BeanDefinitionHolder bdHolder,
                                        DependencyDescriptor descriptor)

Match the given dependency type with its generic type information against the given candidate bean definition.

getResolvedDecoratedDefinition

protected RootBeanDefinition getResolvedDecoratedDefinition(RootBeanDefinition rbd)

getReturnTypeForFactoryMethod

protected ResolvableType getReturnTypeForFactoryMethod(RootBeanDefinition rbd,
                                                       DependencyDescriptor descriptor)

getSuggestedValue

public Object getSuggestedValue(DependencyDescriptor descriptor)

This implementation always returns null, leaving suggested value support up to subclasses.

Specified by:

getSuggestedValue in interface AutowireCandidateResolver

Parameters:

descriptor - the descriptor for the target method parameter or field

Returns:

the value suggested (typically an expression String), or null if none found

getLazyResolutionProxyIfNecessary

public Object getLazyResolutionProxyIfNecessary(DependencyDescriptor descriptor,
                                                String beanName)

This implementation always returns null, leaving lazy resolution support up to subclasses.

Specified by:

getLazyResolutionProxyIfNecessary in interface AutowireCandidateResolver

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