org.springframework.web.reactive.result.method.annotation

Class RequestAttributeMethodArgumentResolver

java.lang.Object

org.springframework.web.reactive.result.method.annotation.AbstractNamedValueArgumentResolver

org.springframework.web.reactive.result.method.annotation.AbstractNamedValueSyncArgumentResolver

org.springframework.web.reactive.result.method.annotation.RequestAttributeMethodArgumentResolver

All Implemented Interfaces:

HandlerMethodArgumentResolver, SyncHandlerMethodArgumentResolver

public class RequestAttributeMethodArgumentResolver
extends AbstractNamedValueSyncArgumentResolver

Resolves method arguments annotated with an @RequestAttribute.

Since:

5.0

Author:

Rossen Stoyanchev

See Also:

SessionAttributeMethodArgumentResolver

Nested Class Summary

Nested classes/interfaces inherited from class org.springframework.web.reactive.result.method.annotation.AbstractNamedValueArgumentResolver

AbstractNamedValueArgumentResolver.NamedValueInfo

Constructor Summary

Constructors

Constructor and Description
RequestAttributeMethodArgumentResolver(ConfigurableBeanFactory beanFactory)

Method Summary

Modifier and Type	Method and Description
protected AbstractNamedValueArgumentResolver.NamedValueInfo	createNamedValueInfo(MethodParameter parameter) Create the AbstractNamedValueArgumentResolver.NamedValueInfo object for the given method parameter.
protected void	handleMissingValue(java.lang.String name, MethodParameter parameter) Invoked when a named value is required, but AbstractNamedValueArgumentResolver.resolveName(String, MethodParameter, ServerWebExchange) returned null and there is no default value.
protected java.util.Optional<java.lang.Object>	resolveNamedValue(java.lang.String name, MethodParameter parameter, ServerWebExchange exchange) An abstract method for synchronous resolution of method argument values that sub-classes must implement.
boolean	supportsParameter(MethodParameter parameter)

Methods inherited from class org.springframework.web.reactive.result.method.annotation.AbstractNamedValueSyncArgumentResolver

resolveArgumentValue, resolveName

Methods inherited from class org.springframework.web.reactive.result.method.annotation.AbstractNamedValueArgumentResolver

handleMissingValue, handleResolvedValue, resolveArgument

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.web.reactive.result.method.SyncHandlerMethodArgumentResolver

resolveArgument

Constructor Detail

RequestAttributeMethodArgumentResolver

public RequestAttributeMethodArgumentResolver(ConfigurableBeanFactory beanFactory)

Method Detail

supportsParameter

public boolean supportsParameter(MethodParameter parameter)

createNamedValueInfo

protected AbstractNamedValueArgumentResolver.NamedValueInfo createNamedValueInfo(MethodParameter parameter)

Description copied from class: AbstractNamedValueArgumentResolver

Create the AbstractNamedValueArgumentResolver.NamedValueInfo object for the given method parameter. Implementations typically retrieve the method annotation by means of MethodParameter.getParameterAnnotation(Class).

Specified by:

createNamedValueInfo in class AbstractNamedValueArgumentResolver

Parameters:

parameter - the method parameter

Returns:

the named value information

resolveNamedValue

protected java.util.Optional<java.lang.Object> resolveNamedValue(java.lang.String name,
                                                                 MethodParameter parameter,
                                                                 ServerWebExchange exchange)

Description copied from class: AbstractNamedValueSyncArgumentResolver

An abstract method for synchronous resolution of method argument values that sub-classes must implement.

Specified by:

resolveNamedValue in class AbstractNamedValueSyncArgumentResolver

Parameters:

name - the name of the value being resolved

parameter - the method parameter to resolve to an argument value (pre-nested in case of a Optional declaration)

exchange - the current exchange

Returns:

the resolved argument value, if any

handleMissingValue

protected void handleMissingValue(java.lang.String name,
                                  MethodParameter parameter)

Description copied from class: AbstractNamedValueArgumentResolver

Invoked when a named value is required, but AbstractNamedValueArgumentResolver.resolveName(String, MethodParameter, ServerWebExchange) returned null and there is no default value. Subclasses typically throw an exception in this case.

Overrides:

handleMissingValue in class AbstractNamedValueArgumentResolver

Parameters:

name - the name for the value

parameter - the method parameter