Command Query Framework

Command Query Framework

Transcript

1. COMMAND QUERY FRAMEWORK EKO KURNIAWAN KHANNEDY
2. WHAT IS CQRS? COMMAND QUERY FRAMEWORK
3. COMMAND QUERY FRAMEWORK COMMAND QUERY RESPONSIBILITY SEGREGATION CUSTOMER SERVICE CUSTOMER READ SERVICE CUSTOMER WRITE SERVICE
4. WHY CQRS? COMMAND QUERY FRAMEWORK
5. COMMAND QUERY FRAMEWORK SLOW READ RESPONSE
6. COMMAND QUERY FRAMEWORK SEARCH COMBINATIONS (1)
7. COMMAND QUERY FRAMEWORK SEARCH COMBINATIONS (2) ▸ Order Id ▸ Order Id + Order Date ▸ Order Id + Order Date + Fraud Case Date ▸ Order Id + Order Date + Fraud Case Description ▸ Order Id + Order Date + Fraud Case Description + Risk ▸ Order Id + Order Date + Fraud Case Description + Risk + Task ▸ Order Id + Fraud Case Date ▸ …
8. OUR SOLUTION COMMAND QUERY FRAMEWORK
9. COMMAND QUERY FRAMEWORK PERSISTENCE DATABASE + SEARCH ENGINE CLIENT READ WRITE SOLR MONGODB / POSTGRESQL
10. COMMAND QUERY FRAMEWORK READ TO SOLR ▸ Fast search by default. ▸ Only return Id from Solr, and get the content from MongoDB or PostgreSQL.
11. COMMAND QUERY FRAMEWORK WRITE TO MONGODB / POSTGRESQL ▸ Fast write, because we don’t need to create many indexes anymore. ▸ Just findById() or findByIds(List<Id>)
12. BUT… COMMAND QUERY FRAMEWORK
13. COMMAND QUERY FRAMEWORK WE DON’T WANT TO CREATE MULTIPLE ENTITY/MODEL CLASS CUSTOMER MONGO / CUSTOMER POSTGRESQL CUSTOMER SOLR CUSTOMER MONGO SERVICE / CUSTOMER POSTGRESQL SERVICE CUSTOMER SOLR SERVICE
14. COMMAND QUERY FRAMEWORK JUST CREATE ONE ENTITY/MODEL CLASS CUSTOMER CUSTOMER SERVICE MONGODB / POSTGRESQL SOLR
15. COMMAND QUERY FRAMEWORK COMMAND QUERY FRAMEWORK
16. COMMAND QUERY FRAMEWORK WHAT IS COMMAND QUERY FRAMEWORK? ▸ Small library that read all entity classes, and magically transform its to Solr data structures. ▸ Pluggable using @Annotation. ▸ For now, only support Apache Solr. ▸ ElasticSearch will be supported soon (waiting for GDN approval) :D
17. COMMAND QUERY FRAMEWORK WHO IS USING IT? ▸ X-Fraud 2.0
18. ENTITY MAPPING COMMAND QUERY FRAMEWORK
19. COMMAND QUERY FRAMEWORK COMMAND QUERY ANNOTATIONS ▸ @QueryDocument for Entity Class. ▸ @QueryId for ID attribute. ▸ @QueryEmbedded for embed nested object. ▸ @QueryEmbeddedCollection for embed collections or array. ▸ @QueryIgnore if we don’t care the attribute. ▸ @QueryPattern for date format pattern.
20. COMMAND QUERY FRAMEWORK @QUERYDOCUMENT
21. COMMAND QUERY FRAMEWORK SUPPORT SUPPER CLASS
22. COMMAND QUERY FRAMEWORK @QUERYEMBEDDED (1) - FROM CLASSES
23. COMMAND QUERY FRAMEWORK @QUERYEMBEDDED (2) - TO SOLR
24. COMMAND QUERY FRAMEWORK @QUERYEMBEDDEDCOLLECTION (1) - FROM CLASSES
25. COMMAND QUERY FRAMEWORK @QUERYEMBEDDEDCOLLECTION (2) - TO SOLR
26. COMMAND QUERY FRAMEWORK @QUERYPATTERN (1) FOR DATE, TIME OR TIMESTAMP
27. COMMAND QUERY FRAMEWORK @QUERYPATTERN (2) TIME RESOLUTION
28. COMMAND QUERY FRAMEWORK BE CAREFUL WITH INFINITE LOOP ATTRIBUTE (1) PARENT CHILD Children Grandchildren
29. COMMAND QUERY FRAMEWORK BE CAREFUL WITH INFINITE LOOP ATTRIBUTE (2)
30. COMMAND QUERY FRAMEWORK BE CAREFUL WITH INFINITE LOOP ATTRIBUTE (3) - PLEASE IGNORE IT
31. SEARCH QUERY COMMAND QUERY FRAMEWORK
32. COMMAND QUERY FRAMEWORK QUERIES CLASS
33. COMMAND QUERY FRAMEWORK HOW TO USE QUERIES CLASS
34. COMMAND QUERY FRAMEWORK QUERIES RESPONSE
35. OTHER FEATURES COMMAND QUERY FRAMEWORK
36. COMMAND QUERY FRAMEWORK ATTRIBUTES GENERATOR, GOOD FOR AUTOCOMPLETE
37. COMMAND QUERY FRAMEWORK FIELD NAME FORMATTER (1)
38. COMMAND QUERY FRAMEWORK FIELD NAME FORMATTER (2) - CHOOSE WHAT YOU WANT
39. LIMITATION COMMAND QUERY FRAMEWORK
40. COMMAND QUERY FRAMEWORK CURRENT LIMITATION ▸ We only support Apache Solr, not support ElasticSearch. ▸ We only support AND query operation. ▸ Minimum Java Version is 8.
41. COMMAND QUERY FRAMEWORK PLEASE CONTRIBUTE ▸ https://stash.gdn-app.com/ ▸ Project: Sandbox ▸ Repository: Command Query
42. THANKS
43. COMMAND QUERY FRAMEWORK REFERENCES ▸ http://codebetter.com/gregyoung/2010/02/16/cqrs-task-based-uis-event- sourcing-agh/ ▸ http://martinfowler.com/bliki/CQRS.html ▸ http://tenmilesquare.com/command-query-responsibility-separation-with-a- relational-database-and-solr/