org.springframework.web.method

Class ControllerAdviceBean

java.lang.Object

org.springframework.web.method.ControllerAdviceBean

All Implemented Interfaces:

Ordered

public class ControllerAdviceBean
extends Object
implements Ordered

Encapsulates information about an @ControllerAdvice Spring-managed bean without necessarily requiring it to be instantiated.

The findAnnotatedBeans(ApplicationContext) method can be used to discover such beans. However, a ControllerAdviceBean may be created from any object, including ones without an @ControllerAdvice.

Since:

3.2

Author:

Rossen Stoyanchev, Brian Clozel, Juergen Hoeller

Field Summary

Fields inherited from interface org.springframework.core.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

Constructors

Constructor and Description
ControllerAdviceBean(Object bean) Create a ControllerAdviceBean using the given bean instance.
ControllerAdviceBean(String beanName, BeanFactory beanFactory) Create a ControllerAdviceBean using the given bean name.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object other)
static List<ControllerAdviceBean>	findAnnotatedBeans(ApplicationContext applicationContext) Find the names of beans annotated with @ControllerAdvice in the given ApplicationContext and wrap them as ControllerAdviceBean instances.
Class<?>	getBeanType() Return the type of the contained bean.
int	getOrder() Returns the order value extracted from the ControllerAdvice annotation, or Ordered.LOWEST_PRECEDENCE otherwise.
int	hashCode()
boolean	isApplicableToBeanType(Class<?> beanType) Check whether the given bean type should be assisted by this @ControllerAdvice instance.
Object	resolveBean() Return a bean instance if necessary resolving the bean name through the BeanFactory.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ControllerAdviceBean

public ControllerAdviceBean(Object bean)

Create a ControllerAdviceBean using the given bean instance.

Parameters:

bean - the bean instance

ControllerAdviceBean

public ControllerAdviceBean(String beanName,
                            @Nullable
                            BeanFactory beanFactory)

Create a ControllerAdviceBean using the given bean name.

Parameters:

beanName - the name of the bean

beanFactory - a BeanFactory that can be used later to resolve the bean

Method Detail

getOrder

public int getOrder()

Returns the order value extracted from the ControllerAdvice annotation, or Ordered.LOWEST_PRECEDENCE otherwise.

Specified by:

getOrder in interface Ordered

Returns:

the order value

See Also:

Ordered.HIGHEST_PRECEDENCE, Ordered.LOWEST_PRECEDENCE

getBeanType

@Nullable
public Class<?> getBeanType()

Return the type of the contained bean.

If the bean type is a CGLIB-generated class, the original user-defined class is returned.

resolveBean

public Object resolveBean()

Return a bean instance if necessary resolving the bean name through the BeanFactory.

isApplicableToBeanType

public boolean isApplicableToBeanType(@Nullable
                                      Class<?> beanType)

Check whether the given bean type should be assisted by this @ControllerAdvice instance.

Parameters:

beanType - the type of the bean to check

Since:

4.0

See Also:

ControllerAdvice

equals

public boolean equals(Object other)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

findAnnotatedBeans

public static List<ControllerAdviceBean> findAnnotatedBeans(ApplicationContext applicationContext)

Find the names of beans annotated with @ControllerAdvice in the given ApplicationContext and wrap them as ControllerAdviceBean instances.