Spring Data Reactive Access
Spring Data Redis
Lettuce supports Reactive
Spring Data Redis Reactive Supports
- ReactiveRedisConnection
- ReactiveRedisConnectionFactory
- ReactiveRedisTemplate
- opsForXxx()
Spring Data MongoDB
MongoDB provides support for Reactive
- mongodb-driver-reactivestreams
Spring Data MongoDB Support
- ReactiveMongoClientFactoryBean
- ReactiveMongoDatabaseFactory
- ReactiveMongoTemplate
Spring Data R2DBC
R2DBC
- Reactive Relational Database Connectivity
Supported Databases
- PostgreSQL (io.r2dbc:r2dbc-postgres)
- H2 (io.r2dbc:r2dbc-h2)
- MSSQL (io.r2dbc:r2dbc-mssql)
R2DBC Classes
- ConnectionFactory
- DatabaseClient
- execute().sql(SQL)
- select() / insert()
- inTransaction(db -> {})
- R2dbcExceptionTranslator
- SqlErrorCodeR2dbcExceptionTranslator
R2DBC Repository
@EnableR2dbcRepositoriesReactiveCrudRepository<T, ID>@Table/@Id- All the methods return
FluxorMono - User-defined query needs write
@Queryby yourself
Use AOP to Print Database Access Layer Abstract
Spring AOP Core Concept
| Concept | Description |
|---|---|
| Aspect | aspect |
| Join Point | connection point, it reprents one method execution in Spring AOP |
| Advice | notification, the action executed in the join point |
| Pointcut | describe how to match the join point |
| Introduction | provide extra method and property for the existing type declaration |
| Target object | Target object |
| AOP proxy | AOP proxied object, ethier JDK dynamic proxy or CGLIB proxy |
| Weaving | the process which connect the aspect and the target object or create proxy for the type |
Related Classes
EnableTransactionManagementboolean proxyTargetClass() default true, true will use CGLIBProxyTransactionManagementConfigurationTransactionInterceptorMethodInterceptor
Common Annotations
@EnableAspectJAutoProxy@Aspect@Pointcut@Before@After/@AfterReturning/@AfterThrowing@Around@Order
How to Print
HikariCP
- P6Spy
Alibaba Druid
- Built-in Support
AOP
- Aspect class
- Pointcut
- Around
- ...