Kotlin, SpringBoot (JPA) transactional persistence issue for multiple repositories - spring-boot

Question

I'm having an issue where I'm unable to persist multiple entities to their respective repositories. WHAT AM I DOING WRONG??? I'm able to persist to the first entity, but not to the second one. Why would this be?
HelperClass:
#Component
class Helper #Autowired constructor(
private val requestRepository: RequestRepository,
private val exchangeRateRepository: ExchangeRateRepository,
private val exchangeRateResultRepository: ExchangeRateResultRepository,
private val responseRepository: ResponseRepository
) {
fun processClientExchangeRateResponses(base: String, listSymbols: List<String>, clientResponses: List<ClientExchangeRateResponse>) {
requestRepository.save(Request("Test", "Test"))
responseRepository.save(Response(10.0, "Test", 12, 12, "Hello"))
}
}
The RequestEntity:
#Entity
#Table(name = "requests")
class Request(
#Column(name = "base", updatable = false, nullable = false)
private val base: String,
#Column(name = "requestObject", updatable = false, nullable = false)
private val requestObject: String
) {
#Id
#GeneratedValue(strategy = GenerationType.AUTO, generator = "native")
#GenericGenerator(name = "native", strategy = "native")
#Column(name = "id", updatable = false, nullable = false)
val id: Long = 0
#CreationTimestamp
#Column(name = "created_at", nullable = false, columnDefinition = "DATETIME")
private val createdAt: ZonedDateTime? = getCurrentDateTime()
#CreationTimestamp
#Column(name = "updated_at", nullable = false, columnDefinition = "DATETIME")
private val updatedAt: ZonedDateTime? = getCurrentDateTime()
private fun getCurrentDateTime(): ZonedDateTime? {
return ZonedDateTime.now()
}
}
Response Entity:
#Entity
#Table(name = "responses")
class Response(
private val responseTime: Double,
private val currencyType: String,
private val exchangeId: Long,
private val requestId: Long,
private val responseObject: String
) {
#Id
#GeneratedValue(strategy = GenerationType.AUTO, generator = "native")
#GenericGenerator(name = "native", strategy = "native")
#Column(name = "id", updatable = false, nullable = false)
val id: Long = 0
#CreationTimestamp
#Column(name = "created_at", nullable = false, columnDefinition = "DATETIME")
private val createdAt: ZonedDateTime? = getCurrentDateTime()
#CreationTimestamp
#Column(name = "updated_at", nullable = false, columnDefinition = "DATETIME")
private val updatedAt: ZonedDateTime? = getCurrentDateTime()
}
RequestRepository
#Repository
interface RequestRepository : JpaRepository<Request, Long>
ResponseRepository
#Repository
interface ResponseRepository : JpaRepository<Response, Long>
MainClass:
#EnableScheduling
#SpringBootApplication
class RatesApplication
fun main(args: Array<String>) {
runApplication<RatesApplication>(*args)
}
POM FILE:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>globee</groupId>
<artifactId>rates</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>rates</name>
<description>Rates</description>
<repositories>
<repository>
<id>jcenter</id>
<url>https://jcenter.bintray.com/</url>
</repository>
</repositories>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>11</java.version>
<maven.test.plugin.version>2.22.2</maven.test.plugin.version>
<kotlin.version>1.3.72</kotlin.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.data/spring-data-jpa -->
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>2.3.4.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
<version>2.2.2.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.code.gson/gson -->
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.8.6</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.module</groupId>
<artifactId>jackson-module-kotlin</artifactId>
</dependency>
<!--
Encountered some problems with this maven dependency. See the following two links for this solution
https://github.com/ascclemens/khttp and
https://khttp.readthedocs.io/en/latest/user/install.html#jitpack –>
-->
<dependency>
<groupId>khttp</groupId>
<artifactId>khttp</artifactId>
<version>1.0.0</version>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-reflect</artifactId>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-stdlib-jdk8</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.liquibase/liquibase-core -->
<dependency>
<groupId>org.liquibase</groupId>
<artifactId>liquibase-core</artifactId>
<version>1.9.5</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-core -->
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.13.3</version>
</dependency>
<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
</dependencies>
<build>
<sourceDirectory>${project.basedir}/src/main/kotlin</sourceDirectory>
<testSourceDirectory>${project.basedir}/src/test/kotlin</testSourceDirectory>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
<configuration>
<mainClass>globee.RatesApplication</mainClass>
</configuration>
</execution>
</executions>
</plugin>
<!-- https://mvnrepository.com/artifact/org.liquibase/liquibase-maven-plugin -->
<plugin>
<groupId>org.liquibase</groupId>
<artifactId>liquibase-maven-plugin</artifactId>
<version>3.10.2</version>
<configuration>
<propertyFileWillOverride>true</propertyFileWillOverride>
<propertyFile>src/main/resources/liquibase.properties</propertyFile>
</configuration>
</plugin>
<plugin>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-plugin</artifactId>
<configuration>
<args>
<arg>-Xjsr305=strict</arg>
</args>
<compilerPlugins>
<plugin>spring</plugin>
</compilerPlugins>
</configuration>
<dependencies>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-allopen</artifactId>
<version>${kotlin.version}</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
</project>

Answer 1

The underlying Hibernate layer might effect your save here. Usually entities will not be written to DB unless you call commit or flush.
There is another method which writes the entities to DB immediately. It is called saveAndFlush. Maybe you should consider using this method in case you'd like to persist it immediately.
Maybe this article might clarify the difference: https://www.baeldung.com/spring-data-jpa-save-saveandflush