HSQLDB with JdbcTemplate, nothing is getting saved - hsqldb

Question

For some reason after doing changes to my file based HSQL database and shutting down the java process, nothing seems to be saved in the database. I.E. i can rerun this program over and over without meeting the "table already exists" exception. What the hell is going on?!
Main class:
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.jdbc.core.JdbcTemplate;
import java.io.IOException;
import java.sql.SQLException;
public class TestApp {
public static void main(String[] args) throws IOException, SQLException, ClassNotFoundException {
AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext(DbConfig.class, TestDao.class);
JdbcTemplate template = ctx.getBean(JdbcTemplate.class);
TestDao dao = ctx.getBean(TestDao.class);
dao.testTransactionality();
}
}
Config:
import org.apache.commons.dbcp.BasicDataSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.PlatformTransactionManager;
import javax.sql.DataSource;
#Configuration
public class DbConfig {
#Bean
public DataSource getDataSource(){
BasicDataSource ds = new BasicDataSource();
ds.setDriverClassName("org.hsqldb.jdbcDriver");
ds.setUrl("jdbc:hsqldb:file:databaseFiles/test/");
ds.setUsername("sa");
ds.setPassword("1");
return ds;
}
#Bean
JdbcTemplate getJdbcTemplate(DataSource ds){
return new JdbcTemplate(ds);
}
#Bean
PlatformTransactionManager getTransactionManager(DataSource dataSource){
return new DataSourceTransactionManager(dataSource);
}
}
DAO:
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import org.springframework.transaction.annotation.Transactional;
#Repository
#EnableTransactionManagement
#Transactional
public class TestDao {
#Autowired
private JdbcTemplate template;
#Transactional
public void testTransactionality(){
template.execute("create table LIBRARY (LIBRARY_ID INT, LIBRARY_TITLE VARCHAR(400))");
template.execute("insert into library values (1, 'Library')");
}
}
I have tried doing something similar with plain JDBC classes as well as doing explicit commits, nothing seems to help. I am guessing it's a HSQLDB problem. Please help

Answer 1

Your database URL is not quite right (shouldn't end with a slash). You should also change the write delay to 0 to see the changes:
ds.setUrl("jdbc:hsqldb:file:databaseFiles/test;hsqldb.write_delay_millis=0");