Package org.axonframework.queryhandling

Interface Summary

Interface	Description
QueryBus	The mechanism that dispatches Query objects to their appropriate QueryHandlers.
QueryGateway	Interface towards the Query Handling components of an application.
QueryHandlerAdapter	Describes a class capable of subscribing to the query bus.
QueryInvocationErrorHandler	Interface describing a mechanism for the QueryMessage components to report errors.
QueryMessage<T,R>	Message type that carries a Query: a request for information.
UpdateHandler<I,U>

Class Summary

Class	Description
DefaultQueryGateway	Implementation of the QueryGateway interface that allows the registration of dispatchInterceptors.
GenericQueryMessage<T,R>	Generic implementation of the QueryMessage.
LoggingQueryInvocationErrorHandler	Implementation of the QueryInvocationErrorHandler that logs all errors to a given Logger.
SimpleQueryBus	Implementation of the QueryBus that dispatches queries to the handlers within the JVM.

Exception Summary

Exception	Description
NoHandlerForQueryException	Exception indicating a query for a single result was executed, but no handlers were found that could provide an answer.
QueryExecutionException	Exception indicating that the execution of a Query Handler has resulted in an exception

Annotation Types Summary

Annotation Type	Description
QueryHandler	Marker annotation to mark any method on an object as being a QueryHandler.