Reflect grouping in directory structure

framework/jdbc-postgresql/README.adoc

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+Tests if JDBC with PostgreSQL is working

framework/jdbc-postgresql/build.gradle

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+plugins {
+	id 'java'
+	id 'org.springframework.boot'
+	id 'org.springframework.aot.smoke-test'
+	id 'org.graalvm.buildtools.native'
+}
+
+dependencies {
+	implementation(platform(org.springframework.boot.gradle.plugin.SpringBootPlugin.BOM_COORDINATES))
+	implementation("org.springframework.boot:spring-boot-starter-jdbc")
+	runtimeOnly("org.postgresql:postgresql")
+
+	testImplementation("org.springframework.boot:spring-boot-starter-test")
+
+	appTestImplementation(project(":aot-smoke-test-support"))
+	appTestImplementation("org.awaitility:awaitility:4.2.0")
+}

framework/jdbc-postgresql/docker-compose.yml

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+version: '3.1'
+services:
+  postgres:
+    image: 'postgres:14'
+    environment:
+      - 'POSTGRES_PASSWORD=password'
+    ports:
+      - '5432'

framework/jdbc-postgresql/src/appTest/java/com/example/jdbc/postgresql/JdbcPostgreSQLApplicationAotTests.java

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+package com.example.jdbc.postgresql;
+
+import java.time.Duration;
+
+import org.awaitility.Awaitility;
+import org.junit.jupiter.api.Test;
+
+import org.springframework.aot.smoketest.support.assertj.AssertableOutput;
+import org.springframework.aot.smoketest.support.junit.ApplicationTest;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+@ApplicationTest
+class JdbcPostgreSQLApplicationAotTests {
+
+	@Test
+	void authorsCanBeQueried(AssertableOutput output) {
+		Awaitility.await().atMost(Duration.ofSeconds(10)).untilAsserted(
+				() -> assertThat(output).hasSingleLineContaining("Found author: Author[id=1, name=mbhave]")
+						.hasSingleLineContaining("Found author: Author[id=2, name=snicoll]")
+						.hasSingleLineContaining("Found author: Author[id=3, name=wilkinsona]"));
+	}
+
+}

framework/jdbc-postgresql/src/main/java/com/example/jdbc/postgresql/Author.java

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+package com.example.jdbc.postgresql;
+
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+import org.springframework.jdbc.core.RowMapper;
+
+record Author(long id, String name) {
+	enum Mapper implements RowMapper<Author> {
+
+		INSTANCE;
+
+		@Override
+		public Author mapRow(ResultSet rs, int rowNum) throws SQLException {
+			return new Author(rs.getInt("id"), rs.getString("name"));
+		}
+
+	}
+}

framework/jdbc-postgresql/src/main/java/com/example/jdbc/postgresql/CLR.java

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+package com.example.jdbc.postgresql;
+
+import java.util.List;
+
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.stereotype.Component;
+
+@Component
+public class CLR implements CommandLineRunner {
+
+	private final JdbcTemplate jdbcTemplate;
+
+	public CLR(JdbcTemplate jdbcTemplate) {
+		this.jdbcTemplate = jdbcTemplate;
+	}
+
+	@Override
+	public void run(String... args) {
+		insertAuthors();
+		queryAuthors();
+	}
+
+	private void queryAuthors() {
+		List<Author> authors = jdbcTemplate.query("SELECT * FROM authors", Author.Mapper.INSTANCE);
+		for (Author author : authors) {
+			System.out.printf("Found author: %s%n", author);
+		}
+	}
+
+	private void insertAuthors() {
+		List<String> authors = List.of("mbhave", "snicoll", "wilkinsona");
+
+		for (String author : authors) {
+			this.jdbcTemplate.update("INSERT INTO authors (name) VALUES (?)", author);
+		}
+	}
+
+}

framework/jdbc-postgresql/src/main/java/com/example/jdbc/postgresql/JdbcPostgreSQLApplication.java

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+package com.example.jdbc.postgresql;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class JdbcPostgreSQLApplication {
+
+	public static void main(String[] args) throws InterruptedException {
+		SpringApplication.run(JdbcPostgreSQLApplication.class, args);
+		Thread.currentThread().join(); // To be able to measure memory consumption
+	}
+
+}

framework/jdbc-postgresql/src/main/resources/application.properties

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+spring.sql.init.mode=always
+spring.datasource.url=jdbc:postgresql://${POSTGRES_HOST:localhost}:${POSTGRES_PORT_5432:5432}/postgres
+spring.datasource.username=postgres
+spring.datasource.password=password

framework/jdbc-postgresql/src/main/resources/schema.sql

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+CREATE TABLE authors
+(
+    id   integer PRIMARY KEY GENERATED BY DEFAULT AS IDENTITY,
+    name varchar NOT NULL
+);