How to use request method of org.testcontainers.r2dbc.EmptySubscription class

Best Testcontainers-java code snippet using org.testcontainers.r2dbc.EmptySubscription.request

Source:EmptySubscription.java

2import org.reactivestreams.Subscription;3enum EmptySubscription implements Subscription {4    INSTANCE;5    @Override6    public void request(long n) {7    }8    @Override9    public void cancel() {10    }11}...

request

Using AI Code Generation

1import org.testcontainers.r2dbc.EmptySubscription;2import org.testcontainers.r2dbc.R2dbcContainer;3import org.testcontainers.r2dbc.R2dbcContainerProvider;4import org.testcontainers.utility.DockerImageName;5import java.util.concurrent.CompletableFuture;6import java.util.concurrent.CompletionStage;7import io.r2dbc.spi.ConnectionFactory;8import io.r2dbc.spi.Result;9import io.r2dbc.spi.Row;10import io.r2dbc.spi.RowMetadata;11import reactor.core.publisher.Flux;12import reactor.core.publisher.Mono;13public class R2dbcApplication {14    public static void main(String[] args) {15        R2dbcContainerProvider provider = new R2dbcContainerProvider();16        R2dbcContainer container = provider.newInstance(DockerImageName.parse("mysql:5.7.29"));17        container.start();18        ConnectionFactory connectionFactory = container.getR2dbcConnectionFactory();19        Mono.from(connectionFactory.create())20                .flatMapMany(connection -> Flux.from(connection.createStatement("SELECT * FROM information_schema.tables").execute())21                        .flatMap(EmptySubscription::request)22                        .flatMapMany(Result::map))23                .map(Row::getMetadata)24                .map(RowMetadata::getColumnNames)25                .map(columnNames -> String.join(", ", columnNames))26                .doOnNext(System.out::println)27                .then()28                .block();29        container.stop();30    }31}

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