<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>
    <session-factory>
        <!-- Database connection settings -->
        <property name="connection.driver_class">org.hsqldb.jdbcDriver</property>
        <property name="connection.url">jdbc:hsqldb:mem:test</property>
        <property name="connection.username">SA</property>
        <property name="connection.password"></property>

        <!-- JDBC connection pool (use the built-in) -->
        <property name="connection.pool_size">1</property>

        <!-- SQL dialect -->
        <property name="dialect">org.hibernate.dialect.HSQLDialect</property>

        <!-- Echo all executed SQL to stdout -->
        <property name="show_sql">true</property>
        <property name="hibernate.show_sql">true</property>
        <!-- Drop and re-create the database schema on startup
        <property name="hbm2ddl.auto">create</property>-->

        <!-- Mapping files -->
        <mapping resource="User.hbm.xml"/>
        <mapping resource="Disk.hbm.xml"/>
        <mapping resource="Takenitem.hbm.xml"/>
    </session-factory>
</hibernate-configuration>

jdbc:hsqldb:file:путь_к_файлам_БД