Hi all, I am using Kotlin with Exposed which is working. Can I also use it with JVM? Does anybody have a running example for database connection and query database?

Kotlin runs on the JVM, and Exposed works on Kotlin on the JVM. Or do you mean Java?

I mean Java

I don’t think it should be complicated. I guess there are a bunch of “Hello world”-like examples written in Kotlin, and Kotlin can be called from Java so you should be able to write something in Java. However, I started to write a super simple table in Java and after 5 minutes I asked myself “What’s the point?“:

// kotlin, single file
object HealthCheckTable : Table() {
    val content = varchar("content", 255)

    override val primaryKey: PrimaryKey by lazy { PrimaryKey(content) }

    fun toObject(row: ResultRow): HealthCheckResponse =
        HealthCheckResponse(row[content])
}

data class HealthCheckResponse(val value: String)

// java, would be multiple files but I gave up
public class HealthCheckTableJava extends Table {
    private Column<String> content = varchar("content", 255, null);

    @Nullable
    @Override
    public PrimaryKey getPrimaryKey() {
        return new PrimaryKey(Collections.singletonList(content));
    }
}

Thank you for the reply I will give it a try. Maybe Exposed is not the best. I will check this.