org.axonframework.axonserver.connector.query

Class AxonServerQueryBus

java.lang.Object

org.axonframework.axonserver.connector.query.AxonServerQueryBus

All Implemented Interfaces:

org.axonframework.messaging.MessageDispatchInterceptorSupport<org.axonframework.queryhandling.QueryMessage<?,?>>, org.axonframework.messaging.MessageHandlerInterceptorSupport<org.axonframework.queryhandling.QueryMessage<?,?>>, org.axonframework.queryhandling.QueryBus, org.axonframework.queryhandling.QueryUpdateEmitter

public class AxonServerQueryBus
extends Object
implements org.axonframework.queryhandling.QueryBus, org.axonframework.queryhandling.QueryUpdateEmitter

AxonServer implementation for the QueryBus. Delegates incoming queries to the specified localSegment.

Author:

Marc Gathier

Constructor Summary

Constructors

Constructor and Description

AxonServerQueryBus(PlatformConnectionManager platformConnectionManager, AxonServerConfiguration configuration, org.axonframework.queryhandling.QueryUpdateEmitter updateEmitter, org.axonframework.queryhandling.QueryBus localSegment, org.axonframework.serialization.Serializer messageSerializer, org.axonframework.serialization.Serializer genericSerializer, QueryPriorityCalculator priorityCalculator) Creates an instance of the AxonServerQueryBus

Method Summary

Modifier and Type	Method and Description
void	complete(Predicate<org.axonframework.queryhandling.SubscriptionQueryMessage<?,?,?>> filter)
void	completeExceptionally(Predicate<org.axonframework.queryhandling.SubscriptionQueryMessage<?,?,?>> filter, Throwable cause)
void	disconnect()
<U> void	emit(Predicate<org.axonframework.queryhandling.SubscriptionQueryMessage<?,?,U>> filter, org.axonframework.queryhandling.SubscriptionQueryUpdateMessage<U> update)
void	on(QueryProviderInbound.RequestCase requestCase, Consumer<QueryProviderInbound> consumer)
void	publish(QueryProviderOutbound providerOutbound)
<Q,R> CompletableFuture<org.axonframework.queryhandling.QueryResponseMessage<R>>	query(org.axonframework.queryhandling.QueryMessage<Q,R> queryMessage)
QueryServiceGrpc.QueryServiceStub	queryServiceStub()
org.axonframework.common.Registration	registerDispatchInterceptor(org.axonframework.messaging.MessageDispatchInterceptor<? super org.axonframework.queryhandling.QueryMessage<?,?>> dispatchInterceptor)
org.axonframework.common.Registration	registerHandlerInterceptor(org.axonframework.messaging.MessageHandlerInterceptor<? super org.axonframework.queryhandling.QueryMessage<?,?>> interceptor)
<Q,R> Stream<org.axonframework.queryhandling.QueryResponseMessage<R>>	scatterGather(org.axonframework.queryhandling.QueryMessage<Q,R> queryMessage, long timeout, TimeUnit timeUnit)
<R> org.axonframework.common.Registration	subscribe(String queryName, Type responseType, org.axonframework.messaging.MessageHandler<? super org.axonframework.queryhandling.QueryMessage<?,R>> handler)
<Q,I,U> org.axonframework.queryhandling.SubscriptionQueryResult<org.axonframework.queryhandling.QueryResponseMessage<I>,org.axonframework.queryhandling.SubscriptionQueryUpdateMessage<U>>	subscriptionQuery(org.axonframework.queryhandling.SubscriptionQueryMessage<Q,I,U> query, org.axonframework.queryhandling.SubscriptionQueryBackpressure backPressure, int updateBufferSize)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.axonframework.queryhandling.QueryBus

subscriptionQuery

Methods inherited from interface org.axonframework.queryhandling.QueryUpdateEmitter

complete, completeExceptionally, emit, emit, emit

Constructor Detail

AxonServerQueryBus

public AxonServerQueryBus(PlatformConnectionManager platformConnectionManager,
                          AxonServerConfiguration configuration,
                          org.axonframework.queryhandling.QueryUpdateEmitter updateEmitter,
                          org.axonframework.queryhandling.QueryBus localSegment,
                          org.axonframework.serialization.Serializer messageSerializer,
                          org.axonframework.serialization.Serializer genericSerializer,
                          QueryPriorityCalculator priorityCalculator)

Creates an instance of the AxonServerQueryBus

Parameters:

platformConnectionManager - creates connection to AxonServer platform

configuration - contains client and component names used to identify the application in AxonServer

updateEmitter -

localSegment - handles incoming query requests

messageSerializer - serializer/deserializer for payload and metadata of query requests and responses

genericSerializer - serializer for communication of other objects than payload and metadata

priorityCalculator - calculates the request priority based on the content and adds it to the request

Method Detail

subscribe

public <R> org.axonframework.common.Registration subscribe(String queryName,
                                                           Type responseType,
                                                           org.axonframework.messaging.MessageHandler<? super org.axonframework.queryhandling.QueryMessage<?,R>> handler)

Specified by:

subscribe in interface org.axonframework.queryhandling.QueryBus

query

public <Q,R> CompletableFuture<org.axonframework.queryhandling.QueryResponseMessage<R>> query(org.axonframework.queryhandling.QueryMessage<Q,R> queryMessage)

Specified by:

query in interface org.axonframework.queryhandling.QueryBus

queryServiceStub

public QueryServiceGrpc.QueryServiceStub queryServiceStub()

scatterGather

public <Q,R> Stream<org.axonframework.queryhandling.QueryResponseMessage<R>> scatterGather(org.axonframework.queryhandling.QueryMessage<Q,R> queryMessage,
                                                                                           long timeout,
                                                                                           TimeUnit timeUnit)

Specified by:

scatterGather in interface org.axonframework.queryhandling.QueryBus

registerHandlerInterceptor

public org.axonframework.common.Registration registerHandlerInterceptor(org.axonframework.messaging.MessageHandlerInterceptor<? super org.axonframework.queryhandling.QueryMessage<?,?>> interceptor)

Specified by:

registerHandlerInterceptor in interface org.axonframework.messaging.MessageHandlerInterceptorSupport<org.axonframework.queryhandling.QueryMessage<?,?>>

registerDispatchInterceptor

public org.axonframework.common.Registration registerDispatchInterceptor(org.axonframework.messaging.MessageDispatchInterceptor<? super org.axonframework.queryhandling.QueryMessage<?,?>> dispatchInterceptor)

Specified by:

registerDispatchInterceptor in interface org.axonframework.messaging.MessageDispatchInterceptorSupport<org.axonframework.queryhandling.QueryMessage<?,?>>

disconnect

public void disconnect()

emit

public <U> void emit(Predicate<org.axonframework.queryhandling.SubscriptionQueryMessage<?,?,U>> filter,
                     org.axonframework.queryhandling.SubscriptionQueryUpdateMessage<U> update)

Specified by:

emit in interface org.axonframework.queryhandling.QueryUpdateEmitter

complete

public void complete(Predicate<org.axonframework.queryhandling.SubscriptionQueryMessage<?,?,?>> filter)

Specified by:

complete in interface org.axonframework.queryhandling.QueryUpdateEmitter

completeExceptionally

public void completeExceptionally(Predicate<org.axonframework.queryhandling.SubscriptionQueryMessage<?,?,?>> filter,
                                  Throwable cause)

Specified by:

completeExceptionally in interface org.axonframework.queryhandling.QueryUpdateEmitter

publish

public void publish(QueryProviderOutbound providerOutbound)

on

public void on(QueryProviderInbound.RequestCase requestCase,
               Consumer<QueryProviderInbound> consumer)

subscriptionQuery

public <Q,I,U> org.axonframework.queryhandling.SubscriptionQueryResult<org.axonframework.queryhandling.QueryResponseMessage<I>,org.axonframework.queryhandling.SubscriptionQueryUpdateMessage<U>> subscriptionQuery(org.axonframework.queryhandling.SubscriptionQueryMessage<Q,I,U> query,
                                                                                                                                                                                                                    org.axonframework.queryhandling.SubscriptionQueryBackpressure backPressure,
                                                                                                                                                                                                                    int updateBufferSize)

Specified by:

subscriptionQuery in interface org.axonframework.queryhandling.QueryBus