org.springframework.beans.factory.support

类 SimpleAutowireCandidateResolver

java.lang.Object

org.springframework.beans.factory.support.SimpleAutowireCandidateResolver

所有已实现的接口:

AutowireCandidateResolver

直接已知子类:

GenericTypeAwareAutowireCandidateResolver

public class SimpleAutowireCandidateResolver
extends Object
implements AutowireCandidateResolver

AutowireCandidateResolver implementation to use when no annotation support is available. This implementation checks the bean definition only.

从以下版本开始:

2.5

作者:

Mark Fisher, Juergen Hoeller

构造器概要

构造器

构造器和说明
SimpleAutowireCandidateResolver()

方法概要

限定符和类型	方法和说明
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.
boolean	isRequired(DependencyDescriptor descriptor) Determine whether the given descriptor is effectively required.

从类继承的方法 java.lang.Object

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

构造器详细资料

SimpleAutowireCandidateResolver

public SimpleAutowireCandidateResolver()

方法详细资料

isAutowireCandidate

public boolean isAutowireCandidate(BeanDefinitionHolder bdHolder,
                                   DependencyDescriptor descriptor)

从接口复制的说明: AutowireCandidateResolver

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

The default implementation checks BeanDefinition.isAutowireCandidate().

指定者:

isAutowireCandidate 在接口中 AutowireCandidateResolver

参数:

bdHolder - the bean definition including bean name and aliases

descriptor - the descriptor for the target method parameter or field

返回:

whether the bean definition qualifies as autowire candidate

另请参阅:

BeanDefinition.isAutowireCandidate()

isRequired

public boolean isRequired(DependencyDescriptor descriptor)

从接口复制的说明: AutowireCandidateResolver

Determine whether the given descriptor is effectively required.

The default implementation checks DependencyDescriptor.isRequired().

指定者:

isRequired 在接口中 AutowireCandidateResolver

参数:

descriptor - the descriptor for the target method parameter or field

返回:

whether the descriptor is marked as required or possibly indicating non-required status some other way (e.g. through a parameter annotation)

另请参阅:

DependencyDescriptor.isRequired()

getSuggestedValue

@Nullable
public Object getSuggestedValue(DependencyDescriptor descriptor)

从接口复制的说明: AutowireCandidateResolver

Determine whether a default value is suggested for the given dependency.

The default implementation simply returns null.

指定者:

getSuggestedValue 在接口中 AutowireCandidateResolver

参数:

descriptor - the descriptor for the target method parameter or field

返回:

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

getLazyResolutionProxyIfNecessary

@Nullable
public Object getLazyResolutionProxyIfNecessary(DependencyDescriptor descriptor,
                                                           @Nullable
                                                           String beanName)

从接口复制的说明: AutowireCandidateResolver

Build a proxy for lazy resolution of the actual dependency target, if demanded by the injection point.

The default implementation simply returns null.

指定者:

getLazyResolutionProxyIfNecessary 在接口中 AutowireCandidateResolver

参数:

descriptor - the descriptor for the target method parameter or field

beanName - the name of the bean that contains the injection point

返回:

the lazy resolution proxy for the actual dependency target, or null if straight resolution is to be performed