java.lang.Object
- org.springframework.web.reactive.result.method.HandlerMethodArgumentResolverSupport
- - org.springframework.web.reactive.result.method.annotation.AbstractNamedValueArgumentResolver
  - - org.springframework.web.reactive.result.method.annotation.AbstractNamedValueSyncArgumentResolver

All Implemented Interfaces:
HandlerMethodArgumentResolver, SyncHandlerMethodArgumentResolver
Direct Known Subclasses:
CookieValueMethodArgumentResolver, ExpressionValueMethodArgumentResolver, MatrixVariableMethodArgumentResolver, PathVariableMethodArgumentResolver, RequestAttributeMethodArgumentResolver, RequestHeaderMethodArgumentResolver, RequestParamMethodArgumentResolver
```
public abstract class AbstractNamedValueSyncArgumentResolver
extends AbstractNamedValueArgumentResolver
implements SyncHandlerMethodArgumentResolver
```
An extension of AbstractNamedValueArgumentResolver for named value resolvers that are synchronous and yet non-blocking. Sub-classes implement the synchronous resolveNamedValue(java.lang.String, org.springframework.core.MethodParameter, org.springframework.web.server.ServerWebExchange) to which the asynchronous resolveName(java.lang.String, org.springframework.core.MethodParameter, org.springframework.web.server.ServerWebExchange) delegates to by default.
Since:
5.0
Author:
Rossen Stoyanchev

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

Field Summary
- Fields inherited from class org.springframework.web.reactive.result.method.HandlerMethodArgumentResolverSupport
  logger

Constructor Summary

Constructors
Modifier	Constructor	Description
`protected`	`AbstractNamedValueSyncArgumentResolver(ConfigurableBeanFactory factory, ReactiveAdapterRegistry registry)`	Create a new `AbstractNamedValueSyncArgumentResolver`.

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`reactor.core.publisher.Mono<Object>`	`resolveArgument(MethodParameter parameter, BindingContext bindingContext, ServerWebExchange exchange)`	Resolve the value for the method parameter.
`Object`	`resolveArgumentValue(MethodParameter parameter, BindingContext context, ServerWebExchange exchange)`	Resolve the value for the method parameter synchronously.
`protected reactor.core.publisher.Mono<Object>`	`resolveName(String name, MethodParameter param, ServerWebExchange exchange)`	Resolve the given parameter type and value name into an argument value.
`protected abstract Object`	`resolveNamedValue(String name, MethodParameter param, ServerWebExchange exchange)`	Actually resolve the value synchronously.

Methods inherited from class org.springframework.web.reactive.result.method.annotation.AbstractNamedValueArgumentResolver
createNamedValueInfo, handleMissingValue, handleMissingValue, handleResolvedValue

Methods inherited from class org.springframework.web.reactive.result.method.HandlerMethodArgumentResolverSupport
checkAnnotatedParamNoReactiveWrapper, checkParameterType, checkParameterTypeNoReactiveWrapper, getAdapterRegistry

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.HandlerMethodArgumentResolver
supportsParameter

Constructor Detail

AbstractNamedValueSyncArgumentResolver

protected AbstractNamedValueSyncArgumentResolver(@Nullable
                                                 ConfigurableBeanFactory factory,
                                                 ReactiveAdapterRegistry registry)

Create a new AbstractNamedValueSyncArgumentResolver.

Parameters:: factory - a bean factory to use for resolving ${...} placeholder and #{...} SpEL expressions in default values; or null if default values are not expected to have expressions; registry - for checking reactive type wrappers

Method Detail

resolveArgument
```
public reactor.core.publisher.Mono<Object> resolveArgument(MethodParameter parameter,
                                                           BindingContext bindingContext,
                                                           ServerWebExchange exchange)
```
Description copied from interface: HandlerMethodArgumentResolver
Resolve the value for the method parameter.
Specified by:
resolveArgument in interface HandlerMethodArgumentResolver
Specified by:
resolveArgument in interface SyncHandlerMethodArgumentResolver
Overrides:
resolveArgument in class AbstractNamedValueArgumentResolver
Parameters:
parameter - the method parameter
bindingContext - the binding context to use
exchange - the current exchange
Returns:
Mono for the argument value, possibly empty

resolveArgumentValue
```
public Object resolveArgumentValue(MethodParameter parameter,
                                   BindingContext context,
                                   ServerWebExchange exchange)
```
Description copied from interface: SyncHandlerMethodArgumentResolver
Resolve the value for the method parameter synchronously.
Specified by:
resolveArgumentValue in interface SyncHandlerMethodArgumentResolver
Parameters:
parameter - the method parameter
context - the binding context to use
exchange - the current exchange
Returns:
the resolved value, if any

resolveName
```
protected final reactor.core.publisher.Mono<Object> resolveName(String name,
                                                                MethodParameter param,
                                                                ServerWebExchange exchange)
```
Description copied from class: AbstractNamedValueArgumentResolver
Resolve the given parameter type and value name into an argument value.
Specified by:
resolveName in class AbstractNamedValueArgumentResolver
Parameters:
name - the name of the value being resolved
param - 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 (may be empty Mono)

resolveNamedValue

@Nullable
protected abstract Object resolveNamedValue(String name,
                                            MethodParameter param,
                                            ServerWebExchange exchange)

Actually resolve the value synchronously.

Class AbstractNamedValueSyncArgumentResolver

Nested Class Summary

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

Field Summary

Fields inherited from class org.springframework.web.reactive.result.method.HandlerMethodArgumentResolverSupport

Constructor Summary

Method Summary

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

Methods inherited from class org.springframework.web.reactive.result.method.HandlerMethodArgumentResolverSupport

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractNamedValueSyncArgumentResolver

Method Detail

resolveArgument

resolveArgumentValue

resolveName

resolveNamedValue