Package org.axonframework.messaging.core.annotation

Class ChainedMessageHandlerInterceptorMember<T>

java.lang.Object

org.axonframework.messaging.core.annotation.ChainedMessageHandlerInterceptorMember<T>

Type Parameters:

T - The type that declares the handlers in this chain.

All Implemented Interfaces:

MessageHandlerInterceptorMemberChain<T>

public class ChainedMessageHandlerInterceptorMember<T>
extends Object
implements MessageHandlerInterceptorMemberChain<T>

A MessageHandlerInterceptorMemberChain implementation that constructs a chain of instances of itself based on a given iterator of MessageHandlingMembers.

Since:

4.4.0

Author:

Allard Buijze

Constructor Summary

Constructors

Constructor	Description
ChainedMessageHandlerInterceptorMember(Class<?> handlerType, Iterator<MessageHandlingMember<? super T>> iterator)	Constructs a chained message handling interceptor for the given handlerType, constructing a chain from the given iterator.

Method Summary

Modifier and Type	Method	Description
MessageStream<?>	handle(Message message, ProcessingContext context, T target, MessageHandlingMember<? super T> handler)
Object	handleSync(Message message, ProcessingContext context, T target, MessageHandlingMember<? super T> handler)	Handle the given message by passing it through the interceptors and ultimately to the given handler on the given target instance.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.axonframework.messaging.core.interception.annotation.MessageHandlerInterceptorMemberChain

handleSync

Constructor Details

ChainedMessageHandlerInterceptorMember

public ChainedMessageHandlerInterceptorMember(Class<?> handlerType,
 Iterator<MessageHandlingMember<? super T>> iterator)

Constructs a chained message handling interceptor for the given handlerType, constructing a chain from the given iterator.

The iterator should at least> have a single MessageHandlingMember. If there are more MessageHandlingMembers present in the given iterator, this constructor will be invoked again.

Parameters:

handlerType - The type for which to construct a message handler interceptor chain.

iterator - The MessageHandlingMembers from which to construct the chain.

Method Details

handle

public MessageStream<?> handle(@Nonnull
 Message message,
 @Nonnull
 ProcessingContext context,
 @Nonnull
 T target,
 @Nonnull
 MessageHandlingMember<? super T> handler)

Specified by:

handle in interface MessageHandlerInterceptorMemberChain<T>

handleSync

public Object handleSync(@Nonnull
 Message message,
 @Nonnull
 ProcessingContext context,
 @Nonnull
 T target,
 @Nonnull
 MessageHandlingMember<? super T> handler)
                  throws Exception

Description copied from interface: MessageHandlerInterceptorMemberChain

Handle the given message by passing it through the interceptors and ultimately to the given handler on the given target instance. The result of this invocation is the result as given by the handler, possibly modified by any of the interceptors in this chain.

Specified by:

handleSync in interface MessageHandlerInterceptorMemberChain<T>

Parameters:

message - The message to pass through the interceptor chain.

context - The context in which the message is being handled.

target - The target instance to invoke the interceptors and handlers on.

handler - The actual handler to invoke once all interceptors have received the message.

Returns:

The result as returned by the handlers or interceptors.

Throws:

Exception - Any exception thrown by the handler or any of the interceptors.