org.axonframework.modelling.command.inspection

Class ChildForwardingCommandMessageHandlingMember<P,C>

java.lang.Object

org.axonframework.modelling.command.inspection.ChildForwardingCommandMessageHandlingMember<P,C>

Type Parameters:

P - the parent entity type

C - the child entity type

All Implemented Interfaces:

org.axonframework.commandhandling.CommandMessageHandlingMember<P>, org.axonframework.messaging.annotation.MessageHandlingMember<P>, ForwardingCommandMessageHandlingMember<P>

public class ChildForwardingCommandMessageHandlingMember<P,C>
extends Object
implements ForwardingCommandMessageHandlingMember<P>

Implementation of a CommandMessageHandlingMember that forwards commands to a child entity.

Since:

3.0

Author:

Allard Buijze

Constructor Summary

Constructors

Constructor and Description

ChildForwardingCommandMessageHandlingMember(List<org.axonframework.messaging.annotation.MessageHandlingMember<? super C>> childHandlerInterceptors, org.axonframework.messaging.annotation.MessageHandlingMember<? super C> childHandler, BiFunction<org.axonframework.commandhandling.CommandMessage<?>,P,C> childEntityResolver) Initializes a ChildForwardingCommandMessageHandlingMember that routes commands to a compatible child entity.

Method Summary

Modifier and Type	Method and Description
Optional<Map<String,Object>>	annotationAttributes(Class<? extends Annotation> annotationType)
<R> Optional<R>	attribute(String attributeKey)
boolean	canForward(org.axonframework.commandhandling.CommandMessage<?> message, P target) Check if this handler is in a state where it can currently accept the command.
boolean	canHandle(org.axonframework.messaging.Message<?> message)
boolean	canHandleMessageType(Class<? extends org.axonframework.messaging.Message> messageType)
String	commandName()
Object	handle(org.axonframework.messaging.Message<?> message, P target)
boolean	hasAnnotation(Class<? extends Annotation> annotationType)
boolean	isFactoryHandler()
Class<?>	payloadType()
int	priority()
String	routingKey()
<HT> Optional<HT>	unwrap(Class<HT> handlerType)

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.annotation.MessageHandlingMember

canHandleType, declaringClass, signature

Constructor Detail

ChildForwardingCommandMessageHandlingMember

public ChildForwardingCommandMessageHandlingMember(List<org.axonframework.messaging.annotation.MessageHandlingMember<? super C>> childHandlerInterceptors,
                                                   org.axonframework.messaging.annotation.MessageHandlingMember<? super C> childHandler,
                                                   BiFunction<org.axonframework.commandhandling.CommandMessage<?>,P,C> childEntityResolver)

Initializes a ChildForwardingCommandMessageHandlingMember that routes commands to a compatible child entity. Child entities are resolved using the given childEntityResolver. If an entity is found the command will be handled using the given childHandler.

Parameters:

childHandlerInterceptors - interceptors for childHandler

childHandler - handler of the command once a suitable entity is found

childEntityResolver - resolver of child entities for a given command

Method Detail

commandName

public String commandName()

Specified by:

commandName in interface org.axonframework.commandhandling.CommandMessageHandlingMember<P>

routingKey

public String routingKey()

Specified by:

routingKey in interface org.axonframework.commandhandling.CommandMessageHandlingMember<P>

isFactoryHandler

public boolean isFactoryHandler()

Specified by:

isFactoryHandler in interface org.axonframework.commandhandling.CommandMessageHandlingMember<P>

payloadType

public Class<?> payloadType()

Specified by:

payloadType in interface org.axonframework.messaging.annotation.MessageHandlingMember<P>

priority

public int priority()

Specified by:

priority in interface org.axonframework.messaging.annotation.MessageHandlingMember<P>

canForward

public boolean canForward(org.axonframework.commandhandling.CommandMessage<?> message,
                          P target)

Description copied from interface: ForwardingCommandMessageHandlingMember

Check if this handler is in a state where it can currently accept the command.

Specified by:

canForward in interface ForwardingCommandMessageHandlingMember<P>

Parameters:

message - The message that is to be forwarded

target - The target to forward the command message

Returns:

true if this handler can forward command to target entity, false otherwise.

canHandle

public boolean canHandle(@Nonnull
                         org.axonframework.messaging.Message<?> message)

Specified by:

canHandle in interface org.axonframework.messaging.annotation.MessageHandlingMember<P>

canHandleMessageType

public boolean canHandleMessageType(@Nonnull
                                    Class<? extends org.axonframework.messaging.Message> messageType)

Specified by:

canHandleMessageType in interface org.axonframework.messaging.annotation.MessageHandlingMember<P>

handle

public Object handle(@Nonnull
                     org.axonframework.messaging.Message<?> message,
                     @Nullable
                     P target)
              throws Exception

Specified by:

handle in interface org.axonframework.messaging.annotation.MessageHandlingMember<P>

Throws:

Exception

unwrap

public <HT> Optional<HT> unwrap(Class<HT> handlerType)

Specified by:

unwrap in interface org.axonframework.messaging.annotation.MessageHandlingMember<P>

hasAnnotation

public boolean hasAnnotation(Class<? extends Annotation> annotationType)

Specified by:

hasAnnotation in interface org.axonframework.messaging.annotation.MessageHandlingMember<P>

annotationAttributes

public Optional<Map<String,Object>> annotationAttributes(Class<? extends Annotation> annotationType)

Specified by:

annotationAttributes in interface org.axonframework.messaging.annotation.MessageHandlingMember<P>

attribute

public <R> Optional<R> attribute(String attributeKey)

Specified by:

attribute in interface org.axonframework.messaging.annotation.MessageHandlingMember<P>