Interface HandlerMethodReturnValueHandler
- All Known Subinterfaces:
AsyncHandlerMethodReturnValueHandler
- All Known Implementing Classes:
AbstractAsyncReturnValueHandler,CompletableFutureReturnValueHandler,HandlerMethodReturnValueHandlerComposite,ListenableFutureReturnValueHandler,ReactiveReturnValueHandler,SendToMethodReturnValueHandler,SubscriptionMethodReturnValueHandler
public interface HandlerMethodReturnValueHandler
Strategy interface to handle the value returned from the invocation of a
method handling a
Message.- Since:
- 4.0
- Author:
- Rossen Stoyanchev
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Method Summary
Modifier and TypeMethodDescriptionvoidhandleReturnValue(Object returnValue, MethodParameter returnType, Message<?> message) Handle the given return value.booleansupportsReturnType(MethodParameter returnType) Whether the given method return type is supported by this handler.
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Method Details
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supportsReturnType
Whether the given method return type is supported by this handler.- Parameters:
returnType- the method return type to check- Returns:
trueif this handler supports the supplied return type;falseotherwise
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handleReturnValue
void handleReturnValue(@Nullable Object returnValue, MethodParameter returnType, Message<?> message) throws Exception Handle the given return value.- Parameters:
returnValue- the value returned from the handler methodreturnType- the type of the return value. This type must have previously been passed tosupportsReturnType(org.springframework.core.MethodParameter)and it must have returnedtrue.message- the message that caused this method to be called- Throws:
Exception- if the return value handling results in an error
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