Domain Driven Design + Command Query Responsibility Segregation + Event Sourcing = l’architettura...
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Domain Driven Design Massimo Nardelli Valerio Del Bello + Command Query Responsability Segregation Event Sourcing L’ARCHITETTURA DEL FUTURO + =
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Transcript of Domain Driven Design + Command Query Responsibility Segregation + Event Sourcing = l’architettura...
Domain Driven Design
Massimo NardelliValerio Del Bello
+Command Query Responsability Segregation
Event Sourcing
L’ARCHITETTURA DEL FUTURO
+
=
PROBLEMA
RobustezzaFlessibilitàPrestazioniScalabilità
MonitorabilitàAffidabilità
Event Sourcing
CQRS
DDDContext Mapping
C O M M A N DEVENT MANAGER
Bounded Context
exagonal architectursQUERY
aggregate
message busDomain Event
Process Manager
SOLUZIONE
microservice
SOAPorts & Adapter
dumb pipe
message drivenevent driven
EVENT STOREEventual Consistency
big dataData Lake
DOMAIN EVENT
Context Map
bounded context
AUDIT
commandReactive Manifesto
Value Object
DISTRIBUTED TRANSACTIONaudit
aggregate
context map
REACTIVE MANIFESTO
SOA
CONTESTO
BBM
Shared Kernel
ACL
QUADRO GENERALE
UI
MS WS
REST
CO
MM
AN
D M
OD
EL
QU
ER
Y M
OD
EL
DB
EVENT
EVENT
EVENT
QUERY
Strato Applicativo
Dominio
Infrastruttura
COMMAND
Ada
pter
Ada
pter
AdapterAdap
ter
EV
EN
T
Adapter
Adapter
EV
EN
T
Sistemi Esterni
EV
EN
T M
OD
EL
COMMAND MODEL
Command Handler
Aggregate
CO
MM
AN
D B
US
COMMAND
Ad
ap
ter
AGGREGATE
ESEGUI CMD
APPLY
RISPETTA INVARIANTE?
RIFIUTO
EVENTS
Sì
No
Lo vediamo dopo…
COMMAND
EVENT MODEL
EVENT BUS
QU
ER
Y M
OD
EL
CO
MM
AN
D M
OD
EL
QU
ER
Y M
OD
EL
Sistemi Esterni
EVENT STORE
Adapter
Process Manager
CO
MM
AN
D B
US
EV
EN
T B
US
Event Handler
EVENT MODEL
AGGREGATE
ESEGUI CMD
APPLY
AGGIORNAMENTOSTATO INVARIANTE
Given
When
Then
EVENT MODEL
QUERY MODEL
EV
EN
T B
US
Query Aggregate
QUERY PERSISTENCE
Event Handler
Query Processor
QU
ER
Y B
US
QUERY
Ad
ap
ter
QUERY PERSISTENCE
Query Aggregate
QUERY MODEL
Massimo [email protected]: @maxnardelli
Valerio Del [email protected]
Twitter: @ValerioDelBello
Miriam [email protected]
