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How to use ConnectionPublisher class of org.testcontainers.r2dbc package

Best Testcontainers-java code snippet using org.testcontainers.r2dbc.ConnectionPublisher

Source:TestcontainersR2DBCConnectionFactory.java

...32            .orElseThrow(() -> new IllegalArgumentException("Missing provider for " + options));33    }34    @Override35    public Publisher<? extends Connection> create() {36        return new ConnectionPublisher(37            () -> {38                if (future == null) {39                    synchronized (this) {40                        if (future == null) {41                            future = CompletableFuture.supplyAsync(() -> {42                                R2DBCDatabaseContainer container = containerProvider.createContainer(options);43                                container.start();44                                return container;45                            }, EXECUTOR);46                        }47                    }48                }49                return future.thenApply(it -> {50                    return ConnectionFactories.find(...

ConnectionPublisher

Using AI Code Generation

1import org.testcontainers.r2dbc.ConnectionPublisher;2import org.testcontainers.r2dbc.R2DBCDatabaseContainer;3import org.testcontainers.r2dbc.R2DBCDatabaseContainerProvider;4import org.testcontainers.r2dbc.R2DBCDatabaseDelegate;5import org.testcontainers.r2dbc.R2DBCDatabaseDelegateProvider;6import org.testcontainers.r2dbc.R2DBCDatabaseDelegateProvider.R2DBCDatabaseDelegateProviderBuilder;7import org.testcontainers.r2dbc.R2DBCDatabaseDelegateProvider.R2DBCDatabaseDelegateProviderBuilder.R2DBCDatabaseDelegateBuilder;8import org.testcontainers.r2dbc.R2DBCDatabaseDelegateProvider.R2DBCDatabaseDelegateProviderBuilder.R2DBCDatabaseDelegateBuilder.R2DBCDatabaseContainerBuilder;9import org.testcontainers.r2dbc.R2DBCDatabaseDelegateProvider.R2DBCDatabaseDelegateProviderBuilder.R2DBCDatabaseDelegateBuilder.R2DBCDatabaseContainerBuilder.R2DBCDatabaseContainerProviderBuilder;10R2DBCDatabaseDelegateProviderBuilder builder = R2DBCDatabaseDelegateProvider.builder();11R2DBCDatabaseContainerProviderBuilder containerProviderBuilder = builder.containerProvider();12R2DBCDatabaseContainerBuilder containerBuilder = containerProviderBuilder.container();13R2DBCDatabaseDelegateBuilder delegateBuilder = containerBuilder.delegate();14R2DBCDatabaseDelegate delegate = delegateBuilder.build();15R2DBCDatabaseContainerProvider containerProvider = containerProviderBuilder.build();16R2DBCDatabaseContainer container = containerBuilder.build();17ConnectionPublisher connectionPublisher = delegate.getConnectionPublisher(container);18Mono<Connection> connectionMono = connectionPublisher.getConnection();19connectionMono.flatMap(connection -> connection.createStatement("SELECT 1").execute())20    .flatMap(result -> result.map((row, rowMetadata) -> row.get(0)))21    .as(StepVerifier::create)22    .expectNext(1)23    .verifyComplete();24connectionMono.flatMap(Connection::close)25    .as(StepVerifier::create)

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