Monday, October 31, 11

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Louise Arnold
5 years ago
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2 Introducing

3 ogm-kitchensink

4 About Hardy Hibernate team member w/ focus on Validator and Search in.relation.to/bloggers/hardy

5 OMG Oh My God

6 O G M Object Grid Mapper

7 What are we going to talk about?

8 What are we going to talk about? What is OGM?

9 What are we going to talk about? What is OGM? Short comparison RDBMS vs NoSQL?

10 What are we going to talk about? What is OGM? Short comparison RDBMS vs NoSQL? How to convert an existing JPA app to OGM?

11 What are we going to talk about? What is OGM? Short comparison RDBMS vs NoSQL? How to convert an existing JPA app to OGM? What is OpenShift?

12 What are we going to talk about? What is OGM? Short comparison RDBMS vs NoSQL? How to convert an existing JPA app to OGM? What is OpenShift? How can we use OpenShift and OGM?

13 What is Hibernate OGM!? JPA for NoSQL

14 What is Hibernate OGM!? JPA for NoSQL key1 = value 1 key2 = value 2 key3 = value 3 key4 = value 4 key5 = value 5

15 What is Hibernate OGM!? JPA for NoSQL key1 = value 1 key2 = value 2 key3 = value 3 key4 = value 4 key5 = value 5

16 Encourage new data usage patterns provide familiar environment ease of use easy to jump in (and out!) Allow NoSQL exploration

17 Relational Databases Transaction Referential integrity Types Well understood - tuning, backup, resilience

18 Relational Databases But scaling is hard! - Replication - Multiple instances w/ shared disk - Sharding

19 NotOnlySQL Data size Connectedness Architecture / Problem type

20 NotOnlySQL Document based stores Column based Graph oriented databases Key / value stores

21 Size Key/Value Graph Complexity

23 How does it work? Entities are stored as tuple (Map<String,Object>) The key is composed of - table name - entity id Collections are represented as a list of tuple The key is composed of: - table name - column names representing the FK - column values representing the FK

$tbl_address,addressid_pk,5 tbl_user_address,userid_fk,1 value {userid_pk=1,name= Emmanuel } {userid_pk=2,name=$ ${userid_fk=1, addressid_fk=5} } tbl_user_address,userid_fk,2 { {userid_fk=2, addressid_fk=3} }$

24 User userid name addresses n n Address addressid city tbl_user userid_pk name tbl_user_address 1 * userid_fk * 1 addressid_fk tbl_address addressid_pk city key tbl_user,userid_pk,1 tbl_user,userid_pk,2 tbl_address,addressid_pk,3 tbl_address,addressid_pk,5 tbl_user_address,userid_fk,1 value {userid_pk=1,name= Emmanuel } {userid_pk=2,name= Caroline } {addressid_pk=3,city= Paris } {addressid_pk=5,city= Atlanta } { {userid_fk=1, addressid_fk=3}, {userid_fk=1, addressid_fk=5} } tbl_user_address,userid_fk,2 { {userid_fk=2, addressid_fk=3} } tbl_user_address,addressid_fk,5 { {userid_fk=1, addressid_fk=5} } tbl_user_address,addressid_fk,3 { {userid_fk=1, addressid_fk=3}, {userid_fk=2, addressid_fk=3} }

25 Demo

26 What have we just done?

27 What have we just done? Used a JBoss AS 7 module for Hibernate 3 and OGM

28 What have we just done? Used a JBoss AS 7 module for Hibernate 3 and OGM -

29 What have we just done? Used a JBoss AS 7 module for Hibernate 3 and OGM - Changed persistence provider: OGMPersitenceProvider

30 What have we just done? Used a JBoss AS 7 module for Hibernate 3 and OGM - Changed persistence provider: OGMPersitenceProvider Switched to UUID for entity ids

31 What have we just done? Used a JBoss AS 7 module for Hibernate 3 and OGM - Changed persistence provider: OGMPersitenceProvider Switched to UUID for entity ids Replaced JPACriteria w/ Hibernate Search

32 Let s launch!

33 What is OpenShift!? Free, cloud-based application platform Supports Java, Perl, PHP, Python and Ruby Comes in the flavors Express and Flex Controlled via ruby scripts Deployment is as easy as: git push

34 $ gem install rhc $ rhc- <TAB> rhc-chk rhc-create-app rhc-create-domain rhc-ctl-app rhc-snapshot rhc-tail-files rhc-user-info

35 $ gem install rhc $ rhc- <TAB> rhc-chk rhc-create-app rhc-create-domain rhc-ctl-app rhc-snapshot rhc-tail-files rhc-user-info

36 # Signup at $ rhc-create-domain -n <domain> $ rhc-create-app -a <app> -t jbossas-7.0

37 # Signup at $ rhc-create-domain -n <domain> $ rhc-create-app -a <app> -t jbossas-7.0

38 Demo

39 What have we just done!?

40 What have we just done!? Created OpenShift domain and app

41 What have we just done!? Created OpenShift domain and app Enabled OpenShift maven profile

42 What have we just done!? Created OpenShift domain and app Enabled OpenShift maven profile Added AS module

43 What have we just done!? Created OpenShift domain and app Enabled OpenShift maven profile Added AS module Pushed to build and deploy

44 What have we just done!? Created OpenShift domain and app Enabled OpenShift maven profile Added AS module Pushed to build and deploy Watched and marveled

45 What s hot? Works with Hibernate Core 4 Improved performance - also in Hibernate Core Next release? Stay tuned!

46 Summary JPA for NoSQL Reusing mature projects Keep the good of the relational model Query via Hibernate Search JP-QL support on its way Still early in the project

48 Q + A

Hibernate OGM. Michal Linhard Quality Assurance Engineer, Red Hat. Red Hat Developer Conference February 17 th, 2012

Hibernate OGM. Michal Linhard Quality Assurance Engineer, Red Hat. Red Hat Developer Conference February 17 th, 2012 Hibernate OGM Michal Linhard Quality Assurance Engineer, Red Hat Red Hat Developer Conference February 17 th, 2012 1 About me Quality Assurance Engineer at JBoss / Red Hat Formerly played with JBoss AS