Class DelegatingInvocableHandler
- java.lang.Object
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- org.springframework.amqp.rabbit.listener.adapter.DelegatingInvocableHandler
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public class DelegatingInvocableHandler extends Object
Delegates to anInvocableHandlerMethodbased on the message payload type. Matches a single, non-annotated parameter or one that is annotated withPayload. Matches must be unambiguous.- Since:
- 1.5
- Author:
- Gary Russell, Artem Bilan
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Constructor Summary
Constructors Constructor Description DelegatingInvocableHandler(List<InvocableHandlerMethod> handlers, Object bean, BeanExpressionResolver beanExpressionResolver, BeanExpressionContext beanExpressionContext)Construct an instance with the supplied handlers for the bean.DelegatingInvocableHandler(List<InvocableHandlerMethod> handlers, InvocableHandlerMethod defaultHandler, Object bean, BeanExpressionResolver beanExpressionResolver, BeanExpressionContext beanExpressionContext)Construct an instance with the supplied handlers for the bean.DelegatingInvocableHandler(List<InvocableHandlerMethod> handlers, InvocableHandlerMethod defaultHandler, Object bean, BeanExpressionResolver beanExpressionResolver, BeanExpressionContext beanExpressionContext, Validator validator)Construct an instance with the supplied handlers for the bean.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected InvocableHandlerMethodfindHandlerForPayload(Class<? extends Object> payloadClass)ObjectgetBean()protected InvocableHandlerMethodgetHandlerForPayload(Class<? extends Object> payloadClass)InvocationResultgetInvocationResultFor(Object result, Object inboundPayload)MethodgetMethodFor(Object payload)Return the method that will be invoked for this payload.StringgetMethodNameFor(Object payload)Return a string representation of the method that will be invoked for this payload.booleanhasDefaultHandler()InvocationResultinvoke(Message<?> message, Object... providedArgs)Invoke the method with the given message.booleanisAsyncReplies()Return true if any handler method has an async reply type.protected booleanmatchHandlerMethod(Class<? extends Object> payloadClass, InvocableHandlerMethod handler)
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Constructor Detail
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DelegatingInvocableHandler
public DelegatingInvocableHandler(List<InvocableHandlerMethod> handlers, Object bean, BeanExpressionResolver beanExpressionResolver, BeanExpressionContext beanExpressionContext)
Construct an instance with the supplied handlers for the bean.- Parameters:
handlers- the handlers.bean- the bean.beanExpressionResolver- the resolver.beanExpressionContext- the context.
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DelegatingInvocableHandler
public DelegatingInvocableHandler(List<InvocableHandlerMethod> handlers, @Nullable InvocableHandlerMethod defaultHandler, Object bean, BeanExpressionResolver beanExpressionResolver, BeanExpressionContext beanExpressionContext)
Construct an instance with the supplied handlers for the bean.- Parameters:
handlers- the handlers.defaultHandler- the default handler.bean- the bean.beanExpressionResolver- the resolver.beanExpressionContext- the context.- Since:
- 2.0.3
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DelegatingInvocableHandler
public DelegatingInvocableHandler(List<InvocableHandlerMethod> handlers, @Nullable InvocableHandlerMethod defaultHandler, Object bean, BeanExpressionResolver beanExpressionResolver, BeanExpressionContext beanExpressionContext, @Nullable Validator validator)
Construct an instance with the supplied handlers for the bean.- Parameters:
handlers- the handlers.defaultHandler- the default handler.bean- the bean.beanExpressionResolver- the resolver.beanExpressionContext- the context.validator- the validator.- Since:
- 2.0.3
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Method Detail
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getBean
public Object getBean()
- Returns:
- the bean
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isAsyncReplies
public boolean isAsyncReplies()
Return true if any handler method has an async reply type.- Returns:
- the asyncReply.
- Since:
- 2.2.21
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invoke
public InvocationResult invoke(Message<?> message, Object... providedArgs) throws Exception
Invoke the method with the given message.- Parameters:
message- the message.providedArgs- additional arguments.- Returns:
- the result of the invocation.
- Throws:
Exception- raised if no suitable argument resolver can be found, or the method raised an exception.
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getHandlerForPayload
protected InvocableHandlerMethod getHandlerForPayload(Class<? extends Object> payloadClass)
- Parameters:
payloadClass- the payload class.- Returns:
- the handler.
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findHandlerForPayload
protected InvocableHandlerMethod findHandlerForPayload(Class<? extends Object> payloadClass)
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matchHandlerMethod
protected boolean matchHandlerMethod(Class<? extends Object> payloadClass, InvocableHandlerMethod handler)
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getMethodNameFor
public String getMethodNameFor(Object payload)
Return a string representation of the method that will be invoked for this payload.- Parameters:
payload- the payload.- Returns:
- the method name.
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getMethodFor
public Method getMethodFor(Object payload)
Return the method that will be invoked for this payload.- Parameters:
payload- the payload.- Returns:
- the method.
- Since:
- 2.0
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hasDefaultHandler
public boolean hasDefaultHandler()
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getInvocationResultFor
@Nullable public InvocationResult getInvocationResultFor(Object result, Object inboundPayload)
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