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#562 - Upgrading to Spring Data Couchbase 4.

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Original pull request: #564.
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deniswsrosa
2020-05-14 09:26:52 +02:00
committed by Mark Paluch
parent 6e1abe4869
commit fd52cea0e4
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couchbase/reactive/README.md
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# Spring Data Couchbase 3.0 - Reactive examples
# Spring Data Couchbase 4.0 - Reactive examples
This project contains samples of reactive data access features with Spring Data (Couchbase).
## Reactive Template API usage with `RxJavaCouchbaseOperations`
The main reactive Template API class is `RxJavaCouchbaseTemplate`, ideally used through its interface `RxJavaCouchbaseOperations`. It defines a basic set of reactive data access operations using [RxJava 1](https://github.com/ReactiveX/RxJava/tree/1.x) `Single` and `Observable` reactive types.
```java
Airline airline = new Airline();
Observable<Airline> single = operations.save(airline)
Observable<Airline> airlines = operations.findByView(ViewQuery.from("airlines", "all"), Airline.class);
```
The test cases in `RxJavaCouchbaseOperationsIntegrationTests` show basic Template API usage.
Reactive data access reads and converts individual elements while processing the stream.
## Reactive Repository support
Spring Data Couchbase provides reactive repository support with Project Reactor, RxJava 1 and RxJava 2 reactive types. The reactive API supports reactive type conversion between reactive types.
Spring Data Couchbase provides reactive repository support with Project Reactor:
```java
@N1qlPrimaryIndexed
@ViewIndexed(designDoc = "airlines")
@Repository
public interface ReactiveAirlineRepository extends ReactiveCrudRepository<Airline, String> {
Mono<Airline> findAirlineByIataCode(String code);
Mono<Airline> findByIata(String code);
@View(designDocument = "airlines", viewName = "all")
Flux<Airline> findAllBy();
}
```
```java
@N1qlPrimaryIndexed
@ViewIndexed(designDoc = "airlines")
public interface RxJava1AirlineRepository extends Repository<Airline, String> {
For more information, see the [official documentation](https://docs.spring.io/spring-data/couchbase/docs/current/reference/html/#reference).
Single<Airline> findAirlineByIataCode(String code);
@View(designDocument = "airlines", viewName = "all")
Observable<Airline> findAllBy();
Single<Airline> findById(String id);
Single<Airline> save(Airline airline);
}
```