JPA eclipselink在运行时更改模式会产生java.lang.IllegalArgumentException:对象:[id = 0]不是已知的实体类型

时间:2017-06-05 04:39:06

标签: java jpa orm schema

很抱歉提出已在此处理的问题,但我不明白建议的解决方案。至少,不能使它工作: - (

我有3个模式,其中有完全相同的表用于保存来自MDB的消息。我必须根据消息内容选择架构。

我尝试过这里提出的解决方案:

JPA - EclipseLink - How to configure Database Schema name at runtime

Modify JPA schema at runtime with EclipseLink running on JBoss

设置orm.xml文件并声明多个持久性单元。当我测试我的代码时,我得到了这个错误,我无法找到解决方案:

我的persistence.xml包含此持久性单元:

<?xml version="1.0" encoding="UTF-8"?>
<!-- Persistence deployment descriptor for dev profile -->
<persistence xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xmlns="http://java.sun.com/xml/ns/persistence"
             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="mb-STIRCO" transaction-type="JTA">
        <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
        <jta-data-source>minfin.esb.soaesb.dataSource</jta-data-source>
        <mapping-file>META-INF/stirCoIn-orm.xml</mapping-file>
        <validation-mode>NONE</validation-mode>
        <properties>
            <property name="eclipselink.target-database" value="DB2"/>
            <property name="eclipselink.cache.shared.default" value="false"/>
            <property name="eclipselink.logging.logger" value="ServerLogger"/>
            <property name="eclipselink.logging.level" value="OFF"/>
            <property name="eclipselink.logging.level.sql" value="OFF"/>
            <property name="eclipselink.logging.parameters" value="true"/>
        </properties>
    </persistence-unit>

</persistence>

指向stirCoIn-orm.xml。

<?xml version="1.0" encoding="UTF-8"?>
<entity-mappings xmlns="http://java.sun.com/xml/ns/persistence/orm"
                 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                 xsi:schemaLocation="http://java.sun.com/xml/ns/persistence/orm orm_2_0.xsd"
                 version="2.0">
    <persistence-unit-metadata>
        <persistence-unit-defaults>
            <schema>ESB_MB_STIRCO</schema>
        </persistence-unit-defaults>
    </persistence-unit-metadata>
</entity-mappings>

在运行时,我尝试实例化该持久性单元:

EntityManagerFactory emf = Persistence.createEntityManagerFactory("mb-STIRCO");
EntityManager em2 = emf.createEntityManager();

MessageStirCo myEntity = new MessageStirCo(tsCreateDate, sBody);

em2.persist(myEntity);

当我运行时,我收到此错误:

  

java.lang.IllegalArgumentException:Object:[id = 0]不是已知的实体类型。

知道我做错了吗?

提前致谢。

劳伦

0 个答案:

没有答案
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