内部HSQL数据库抱怨特权 [英] Internal HSQL database complains about privileges
问题描述
我正在设置一个具有进程内存HSQL数据库的独立Java服务。
I'm setting up a standalone Java service with an in-process, in-memory HSQL database.
Persistence.xml / p>
Persistence.xml
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
version="2.0">
<persistence-unit name="manager">
<class>tr.silvercar.data.entities.User</class>
<properties>
<property name="javax.persistence.jdbc.driver" value="org.hsqldb.jdbcDriver" />
<property name="javax.persistence.jdbc.user" value="sa" />
<property name="javax.persistence.jdbc.password" value="" />
<property name="javax.persistence.jdbc.url" value="jdbc:hsqldb:mem:testdb" />
<property name="hibernate.dialect" value="org.hibernate.dialect.HSQLDialect" />
<property name="hibernate.max_fetch_depth" value="3" />
<!-- cache configuration -->
<!--
<property name="hibernate.ejb.classcache.org.hibernate.ejb.test.Item"
value="read-write" />
<property
name="hibernate.ejb.collectioncache.org.hibernate.ejb.test.Item.distributors"
value="read-write, RegionName" />
-->
</properties>
</persistence-unit>
</persistence>
代码
emf = Persistence.createEntityManagerFactory("manager");
User newUser = new User();
newUser.setName("Testgebruiker");
newUser.setCredits(100);
System.out.println("Inserting user");
EntityManager em = emf.createEntityManager();
em.persist(newUser);
em.close();
System.out.println("Getting user");
em = emf.createEntityManager();
User u = (User) em.createQuery("SELECT u FROM User u").getSingleResult();
em.close();
System.out.println(u);
在我看来,由于数据库在内存中,Hibernate应该生成表,不需要做任何其他事情。但是,在调用 getSingleResult
时会出现异常:
org.hsqldb.HsqlException: user lacks privilege or object not found: USER
推荐答案
您需要使用Hibernate 3.5.6或更高版本,以及HSQLDB版本2.2.x或更高版本。否则,较旧的Hibernte jar使用HSQLDB 1.8.x.表的名称不是问题。
我已经开发了方言,并为这个版本运行Hibernate测试,但Pascal知道更多关于Hibernate的使用,而不是我做,并已帮助很多人在这里。
You need to use Hibernate 3.5.6 or later, together with HSQLDB version 2.2.x or later. Otherwise, older Hibernte jars work with HSQLDB 1.8.x. The name of the table is not a problem. I have developed the dialect and run the Hibernate tests for this version, but Pascal knows a lot more about Hibernate usage than I do and has helped a lot of people here.
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