SpringOne Platform 2017 John Blum, Pivotal Building effective Apache Geode applications quickly and easily requires a framework that provides the right level of abstraction. In this session we take Alan Kay's infamous quote "Simple things should be simple; Complex things should be possible" to a whole new level with Spring Data Geode using Spring Boot. I'll show you how the new Annotation-based configuration model, which builds on existing concepts like SD Repositories, Spring's Cache Abstraction and Apache Geode CQ, helps you rapidly build working Apache Geode client/server applications in minutes. We end the session with a quick look at the roadmap and what users can expect next. You won't want to miss this.

1. Simplifying Apache Geode
with Spring Data
By John Blum
@john_blum
1

2. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
History
April 2015
SD GemFire 1.7
Branch for
*Apache Geode
June 2015
1.7.0.APACHE-
GEODE-EA-M1
1.0.0-
incubating.M1
April 2016
1.0.0.APACHE-
GEODE-
INCUBATING-M2
1.0.0-
incubating.M2
October 2016
1.0.0.APACHE-
GEODE-
INCUBATING-M3
1.0.0-
incubating.M3
November 2016
1.0.0.APACHE-
GEODE-
INCUBATING-
RELEASE
*1.0.0-incubating
April 2017
SD Geode Kay
2.0.x
1.2.1
2

3. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
3
Spring Data for
Apache Geode
Kay

4. “Simple things should be simple;
complex things should be possible”
– Alan Kay

5. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Core Themes in SDG - 2017
 Get Up & Running as Quickly and Easily as possible
 Using
 Make the Journey to the Cloud as Simple as possible
 On
5
Spring
Data
Blog Post: $ diff –q spring-data-gemfire spring-data-geode

6. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-gemfire</artifactId>
<version>2.0.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-geode</artifactId>
<version>2.0.2.RELEASE</version>
</dependency>
6

7. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Spring Data Geode 2.0 (Kay)
Apache Geode 1.2.1
7
Spring Data GemFire 2.0 (Kay)
Pivotal GemFire 9.1.1
Apache Geode 1.2.1
Kay

8. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
8
Spring
Cloud

9. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
How does it work?
New Annotation-based Configuration
 Convention over Configuration
 Use sensible defaults for all configuration parameters OOTB
 Enable users to get up and running, quickly and easily (no hassle).
 Allow user to override and customize the default, provided configuration
https://docs.spring.io/spring-data/geode/docs/current/reference/html/#bootstrap-annotation-config
9

10. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
@Demo
11
https://docs.spring.io/spring-data/geode/docs/current/reference/html/#bootstrap-annotation-config

11. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Client Annotations
14
@SpringBootApplication
@ClientCacheApplication
public class MySpringBootApacheGeodeClient { .. }

12. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Client Annotations: Pools
15
@SpringBootApplication
@ClientCacheApplication
@EnablePools(pools = { @EnablePool(host = “hostname”, port = 1234), … })
public class MySpringBootApacheGeodeClient { .. }

13. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Client Annotations: Entity-defined Regions
16
@SpringBootApplication
@ClientCacheApplication
@EnableGemfireRepositories(basePackageClasses = EntityRepository.class)
@EnableEntityDefinedRegions(basePackageClasses = EntityType.class)
@EnableIndexing(..)
public class MySpringBootApacheGeodeClient { .. }
@Region(name = “Customers”)
class Customer {
@Id Long id;
@Indexed(..) String name;
@LuceneIndexed(..) String title;
}

14. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Client Annotations: Caching-defined Regions
17
@SpringBootApplication
@ClientCacheApplication
@EnableGemfireCaching
@EnableCachingDefinedRegions(..)
public class MySpringBootApacheGeodeClient { .. }
@Service
class CustomerService {
@Cacheable(“Accounts”)
Account getAccount(Customer customer) { .. }
}

15. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Client Annotations: Cluster Configuration*
18
@SpringBootApplication
@ClientCacheApplication
@EnableClusterConfiguration(useHttp = true)
public class MySpringBootApacheGeodeClient { .. }

16. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Client Annotations: CQ
19
@SpringBootApplication
@ClientCacheApplication
@EnableContinuousQueries(..)
public class MySpringBootApacheGeodeClient { .. }
@Service
class CustomerService {
@ContinuousQuery(name = “CreditScoreUpdates”,
query = “SELECT * FROM /Customers WHERE …”)
void creditScoreChange(CqEvent event) { .. }
}

17. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Client Annotations: Serialization
20
@SpringBootApplication
@ClientCacheApplication
@EnablePdx(..)
public class MySpringBootApacheGeodeClient { .. }
Registers the SDG o.s.d.g.mapping.MappingPdxSerializer by default

18. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Client Annotations: Security
21
@SpringBootApplication
@ClientCacheApplication
@EnableSecurity(..)
@EnableSsl(..)
public class MySpringBootApacheGeodeClient { .. }
# application.properties
spring.data.gemfire.security.username = jblum
spring.data.gemfire.security.password = secret

19. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Client Annotations: Other
22
@SpringBootApplication
@ClientCacheApplication
@EnableGemFireProperties(..)
@EnableLogging(logLevel = “info”, …)
public class MySpringBootApacheGeodeClient { .. }

20. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Server Annotations
24
@SpringBootApplication
@CacheServerApplication(name = “MySpringBootApacheGeodeServer”)
public class MySpringBootApacheGeodeServer { .. }

21. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Server Annotations: CacheServers
25
@SpringBootApplication
@CacheServerApplication(name = “MySpringBootApacheGeodeServer”)
@EnableCacheServers(servers = { @EnableCacheServer(..), … })
public class MySpringBootApacheGeodeServer { .. }

22. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Server Annotations: Processes
26
@SpringBootApplication
@CacheServerApplication(name = “MySpringBootApacheGeodeServer”)
@EnableLocator(port = 11235)
@EnableManager(port = 1199)
public class MySpringBootApacheGeodeServer { .. }

23. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Server Annotations: Services
27
@SpringBootApplication
@CacheServerApplication(name = “MySpringBootApacheGeodeServer”)
@EnableHttpService(..)
@EnableMemcachedServer(..)
@EnableRedisServer(..)
public class MySpringBootApacheGeodeServer { .. }

24. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Server Annotations: Regions
28
@SpringBootApplication
@CacheServerApplication(name = “MySpringBootApacheGeodeServer”)
@EnableCompression(..)
@EnableDiskStores(diskStores = { @EnableDiskStore(..), … })
@EnableEntityDefinedRegions(basePackageClasses = EntityType.class)
@EnableEviction(..)
@EnableExpiration(..)
@EnableOffHeap(memorySize = “1024g”)
public class MySpringBootApacheGeodeServer { .. }

25. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Server Annotations: Expiration
29
@SpringBootApplication
@CacheServerApplication(name = “MySpringBootApacheGeodeServer”)
@EnableExpiration(..)
…
public class MySpringBootApacheGeodeServer { .. }
@Region(”Customers”)
@TimeToLiveExpiration(timeout = “600”, action = “LOCAL_DESTROY”)
@IdleTimeoutExpiration(timeout = “120”, action = “INVALIDATE”)
@Expiration(..)
class Customer { .. }
https://docs.spring.io/spring-data/geode/docs/current/reference/html/#bootstrap-annotation-config-region-expiration
https://docs.spring.io/spring-data/geode/docs/current/reference/html/#bootstrap:region:expiration:annotation

26. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Server Annotations: Security
30
@SpringBootApplication
@CacheServerApplication(name = “MySpringBootApacheGeodeServer”)
@EnableSecurity(..)
@EnableSsl(..)
public class MySpringBootApacheGeodeServer {
@Bean
AuthorizingRealm ldapRealm(LdapContextFactory contextFactory) {
DefaultLdapRealm ldapRealm = new DefaultLdapRealm();
ldapRealm.setContextFactory(contextFactory);
return ldapRealm;
}
https://spring.io/blog/2016/11/10/spring-data-geode-1-0-0-incubating-release-released#apache-shiro-realms

27. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Server Annotations: Other
31
@SpringBootApplication
@CacheServerApplication(name = “MySpringBootApacheGeodeServer”)
@EnableGemFireProperties(remoteLocators = “..”, …)
@EnableLogging(logLevel = “warning”, …)
@EnableStatistics(..)
public class MySpringBootApacheGeodeServer { .. }

28. Configuration @Runtime

29. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Annotations: Properties Configuration
33
@SpringBootApplication
@ClientCacheApplication(locators = {
@Locator(host = “HostnameOne”, port = 1111),
@Locator(host = “HostnameTwo”, port = 2222),
…
})
public class MySpringBootApacheGeodeClient { .. }

30. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Annotations: Properties Configuration
34
@SpringBootApplication
@ClientCacheApplication
public class MySpringBootApacheGeodeClient { .. }
# application.properties
spring.data.gemfire.pool.locators=HostnameOne[1111],HostnameTwo[2222], …
spring.data.gemfire.pool.default.locators=…
spring.data.gemfire.pool.swimming.locators=…
…

31. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Annotations: Properties Configuration
35
public @interface ClientCacheApplication {
/**
* Configures the GemFire {@link org.apache.geode.distributed.Locator Locators} to which
* this cache client will connect.
*
* Use either the {@literal spring.data.gemfire.pool.default.locators} property
* or the {@literal spring.data.gemfire.pool.locators} property in {@literal application.properties}.
*/
Locator[] locators() default {};
…
}
https://docs.spring.io/spring-data/geode/docs/current/api/org/springframework/data/gemfire/config/annotation/ClientCacheApplication.html

32. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Annotations: Configurers
36
@SpringBootApplication
@ClientCacheApplication
public class MySpringBootApacheGeodeClient {
@Bean
ClientCacheConfigurer locatorsConfigurer(
@Value(“${geode.locators.hostsPorts:localhost[10334]}”)
String hostsPorts) {
return (beanName, clientCacheFactoryBean) ->
clientCacheFactoryBean.setLocators(
ConnectionEndpointList.parse(10334, hostsPorts));
}
}

33. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
What’s Next?
• Function Executions from Repository
• Paging support in Repository
• Query Projections
• Reactive Repository extensions for CQ
• Spring Security support
• Annotation support for CacheCallbacks
• Auto-generated IDs (Region keys)
• New Spring-driven Test (Context) Framework
37

34. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Function Executions from Repository
38
public interface CustomerRepository
implements CrudRepository<Customer, Long> {
@Function(..)
CreditScore calculateCreditScore(Customer customer);
}
Customer jonDoe = …
CreditScore creditScore = customerRepository.calculateCreditScore(jonDoe);

35. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Paging (& Sorting) Support
39
public interface CustomerRepository
implements CrudRepository<Customer, Long> {
List<Customer> findByLastNameOrderByCustomerFirstNameAsc(
String firstName);
List<Customer> findByLastName(String lastName, Sort sort);
// NEW!
Page<Customer> findTop100ByCreditScoreGreaterThan(CreditScore score,
Pageable pageable);
}

36. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Query Projections (DTO)
40
public interface CustomerRepository
implements CrudRepository<Customer, Long> {
Iterable<CustomerNameProjection> findByLastName(String lastName);
}
@Region(“Customers”)
class Customer {
@Id Long id;
String firstName, lastName;
String getName() {
return String.format(“%1$s %2$s”,
firstName, lastName);
}
class CustomerNameProjection {
String name;
}

37. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Reactive Repository Extensions for CQ
41
public interface CustomerRepository
implements CrudRepository<Customer, Long> {
@ContinuousQuery(..)
Flux<Customer> findByCreditScoreGreaterThanAndCreditScoreLessThan(
CreditScore low, CreditScore high);
}

38. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Annotation-based CacheCallbacks Support
42
@Component
public class MyCallbacks {
@CacheListener(regions = { “Customers”, “Accounts” })
public <K, V> void afterCreate(EntryEvent<K, V> event) { .. }
@CacheWriter(region = “Customers”)
public <K, V> void beforeCreate(EntryEvent(K, V> event) { .. }
. . .
}

39. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Unit Testing Apache Geode with Spring
With Integration Testing support in-progress…
@TestDemo
43
https://github.com/jxblum/spring-data-tests-4-gemfire

40. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Spring Data Geode 2.1 (Lovelace)
Apache Geode 1.3.0
44
Spring Data GemFire 2.1 (Lovelace)
Pivotal GemFire 9.2.0
Apache Geode 1.3.0

41. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
References
• Reference Documentation: https://docs.spring.io/spring-data/geode/docs/current/reference/html/
• Javadoc: https://docs.spring.io/spring-data/geode/docs/current/api/
• GitHub: https://github.com/spring-projects/spring-data-geode
• JIRA: https://jira.spring.io/browse/DATAGEODE
• StackOverflow: https://stackoverflow.com/questions/tagged/spring-data-gemfire
• Presentation Examples: https://github.com/jxblum/simple-spring-geode-application
• Examples: https://github.com/jxblum/contacts-application
Me: @john_blum (Twitter) https://spring.io/team/jxblum (GitHub)

42. Questions
Answers

43. 47© 2014 Pivotal Software, Inc. All rights reserved.
Thank You

44. Learn More. Stay Connected.
Refactoring to a System of Systems - Oliver Gierke
Thursday @ 11:50 AM – Room #2008
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