public class DestinationVariableMethodArgumentResolver extends AbstractNamedValueMethodArgumentResolver
@DestinationVariable.AbstractNamedValueMethodArgumentResolver.NamedValueInfo| Modifier and Type | Field and Description |
|---|---|
static java.lang.String |
DESTINATION_TEMPLATE_VARIABLES_HEADER |
| Constructor and Description |
|---|
DestinationVariableMethodArgumentResolver(ConversionService cs) |
| Modifier and Type | Method and Description |
|---|---|
protected AbstractNamedValueMethodArgumentResolver.NamedValueInfo |
createNamedValueInfo(MethodParameter parameter)
Create the
AbstractNamedValueMethodArgumentResolver.NamedValueInfo object for the given method parameter. |
protected void |
handleMissingValue(java.lang.String name,
MethodParameter parameter,
Message<?> message)
Invoked when a named value is required, but
AbstractNamedValueMethodArgumentResolver.resolveArgumentInternal(MethodParameter, Message, String) returned null and
there is no default value. |
protected java.lang.Object |
resolveArgumentInternal(MethodParameter parameter,
Message<?> message,
java.lang.String name)
Resolves the given parameter type and value name into an argument value.
|
boolean |
supportsParameter(MethodParameter parameter)
Whether the given method parameter is
supported by this resolver.
|
handleResolvedValue, resolveArgumentpublic static final java.lang.String DESTINATION_TEMPLATE_VARIABLES_HEADER
public DestinationVariableMethodArgumentResolver(ConversionService cs)
public boolean supportsParameter(MethodParameter parameter)
HandlerMethodArgumentResolverparameter - the method parameter to checktrue if this resolver supports the supplied parameter;
false otherwiseprotected AbstractNamedValueMethodArgumentResolver.NamedValueInfo createNamedValueInfo(MethodParameter parameter)
AbstractNamedValueMethodArgumentResolverAbstractNamedValueMethodArgumentResolver.NamedValueInfo object for the given method parameter. Implementations typically
retrieve the method annotation by means of MethodParameter.getParameterAnnotation(Class).createNamedValueInfo in class AbstractNamedValueMethodArgumentResolverparameter - the method parameter@Nullable protected java.lang.Object resolveArgumentInternal(MethodParameter parameter, Message<?> message, java.lang.String name) throws java.lang.Exception
AbstractNamedValueMethodArgumentResolverresolveArgumentInternal in class AbstractNamedValueMethodArgumentResolverparameter - the method parameter to resolve to an argument valuemessage - the current requestname - the name of the value being resolvednulljava.lang.Exception - in case of errorsprotected void handleMissingValue(java.lang.String name,
MethodParameter parameter,
Message<?> message)
AbstractNamedValueMethodArgumentResolverAbstractNamedValueMethodArgumentResolver.resolveArgumentInternal(MethodParameter, Message, String) returned null and
there is no default value. Subclasses typically throw an exception in this case.handleMissingValue in class AbstractNamedValueMethodArgumentResolvername - the name for the valueparameter - the method parametermessage - the message being processed