Top Description Constructors Methods
org.springframework.web.reactive.result.method.annotation

public Class SessionAttributeMethodArgumentResolver

extends AbstractNamedValueArgumentResolver
Class Inheritance
Imports
reactor.core.publisher.Mono, org.springframework.beans.factory.config.ConfigurableBeanFactory, org.springframework.core.MethodParameter, .ReactiveAdapterRegistry, org.springframework.util.Assert, org.springframework.web.bind.annotation.SessionAttribute, .ValueConstants, org.springframework.web.server.MissingRequestValueException, .ServerWebExchange
Resolves method arguments annotated with an @SessionAttribute.
Author
Rossen Stoyanchev
Since
5.0
See Also
RequestAttributeMethodArgumentResolver

Constructor Summary

AccessConstructor and Description
public
SessionAttributeMethodArgumentResolver(ConfigurableBeanFactory factory, ReactiveAdapterRegistry registry)

Method Summary

Modifier and TypeMethod and Description
protected AbstractNamedValueArgumentResolver.NamedValueInfo
createNamedValueInfo(MethodParameter
the method parameter
parameter)

Implements abstract org.springframework.web.reactive.result.method.annotation.AbstractNamedValueArgumentResolver.createNamedValueInfo.

Create the NamedValueInfo object for the given method parameter.

protected void
handleMissingValue(String
the name for the value
name, MethodParameter
the method parameter
parameter)

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

Invoked when a named value is required, but resolveName(String, MethodParameter, ServerWebExchange) returned null and there is no default value.

protected Mono<Object>
resolveName(String
the name of the value being resolved
name, MethodParameter
the method parameter to resolve to an argument value (pre-nested in case of a java.util.Optional declaration)
parameter, ServerWebExchange
the current exchange
exchange)

Implements abstract org.springframework.web.reactive.result.method.annotation.AbstractNamedValueArgumentResolver.resolveName.

Resolve the given parameter type and value name into an argument value.

public boolean
supportsParameter(MethodParameter
the method parameter
parameter)

Implements org.springframework.web.reactive.result.method.HandlerMethodArgumentResolver.supportsParameter.

Whether this resolver supports the given method parameter.

Inherited from org.springframework.web.reactive.result.method.annotation.AbstractNamedValueArgumentResolver:
handleMissingValuehandleResolvedValueresolveArgument

Constructor Detail

SessionAttributeMethodArgumentResolverback to summary
public SessionAttributeMethodArgumentResolver(ConfigurableBeanFactory factory, ReactiveAdapterRegistry registry)

Method Detail

createNamedValueInfoback to summary
protected AbstractNamedValueArgumentResolver.NamedValueInfo createNamedValueInfo(MethodParameter parameter)

Implements abstract org.springframework.web.reactive.result.method.annotation.AbstractNamedValueArgumentResolver.createNamedValueInfo.

Doc from org.springframework.web.reactive.result.method.annotation.AbstractNamedValueArgumentResolver.createNamedValueInfo.

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

Parameters
parameter:MethodParameter

the method parameter

Returns:AbstractNamedValueArgumentResolver.NamedValueInfo

the named value information

Annotations
@Override
handleMissingValueback to summary
protected void handleMissingValue(String name, MethodParameter parameter)

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

Doc from org.springframework.web.reactive.result.method.annotation.AbstractNamedValueArgumentResolver.handleMissingValue.

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

Parameters
name:String

the name for the value

parameter:MethodParameter

the method parameter

Annotations
@Override
resolveNameback to summary
protected Mono<Object> resolveName(String name, MethodParameter parameter, ServerWebExchange exchange)

Implements abstract org.springframework.web.reactive.result.method.annotation.AbstractNamedValueArgumentResolver.resolveName.

Doc from org.springframework.web.reactive.result.method.annotation.AbstractNamedValueArgumentResolver.resolveName.

Resolve the given parameter type and value name into an argument value.

Parameters
name:String

the name of the value being resolved

parameter:MethodParameter

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

exchange:ServerWebExchange

the current exchange

Returns:Mono<Object>

the resolved argument (may be empty Mono)

Annotations
@Override
supportsParameterback to summary
public boolean supportsParameter(MethodParameter parameter)

Implements org.springframework.web.reactive.result.method.HandlerMethodArgumentResolver.supportsParameter.

Doc from org.springframework.web.reactive.result.method.HandlerMethodArgumentResolver.supportsParameter.

Whether this resolver supports the given method parameter.

Parameters
parameter:MethodParameter

the method parameter

Annotations
@Override