java - 无法使用 kundera 将继承的实体持久保存到 Hbase

Question

我有两个实体类，一个是从其他实体类继承的，

@Entity
@Table(name = "common", schema = "url_results@hbase_pu")
@Inheritance(strategy = InheritanceType.SINGLE_TABLE)
@DiscriminatorColumn(name = "launcher")
public class Person implements Serializable{
@Id
@GeneratedValue(strategy = GenerationType.TABLE)
private String id;
@Column(name = "name")
private String name;
@Column(name = "path")
private String url;
----- 
//getters and setters

}

另一个子类，

@Entity
@DiscriminatorValue(value = "owner")
public class Owner extends Person implements Serializable {
@Column(name = "workload_id")
protected long workloadId;
//getters and setters
}

我的persiestance.xml是

<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="hbase_pu">
    <provider>com.impetus.kundera.KunderaPersistence</provider>
    <class>com.abc.Owner</class>  

    <exclude-unlisted-classes>true</exclude-unlisted-classes>     
    <properties>            
        <property name="kundera.nodes" value="quickstart.cloudera"/>
        <property name="kundera.port" value="2181"/>
        <property name="kundera.keyspace" value="url_results"/>
        <property name="kundera.dialect" value="hbase"/>
        <property name="kundera.ddl.auto.prepare" value="create" />
        <property name="kundera.client.lookup.class" value="com.impetus.client.hbase.HBaseClientFactory" />         
    </properties>       
</persistence-unit>`enter code here`

当我使用持久调用时，它失败并显示

com.impetus.kundera.KunderaException: 
java.lang.IllegalArgumentException: Entity object is invalid, operation 
failed. Please check previous log message for details
at  
com.impetus.kundera.persistence.EntityManagerImpl.persist(EntityManagerImpl.java:180)
at xx..xx.xx.xx.(DatabaseConnector.java:46)
at xx.xx.xx.testDatabaseConnector(DatabaseConnectorTest.java:54)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: java.lang.IllegalArgumentException: Entity object is invalid, operation failed. Please check previous log message for details
at com.impetus.kundera.validation.rules.NullOrInvalidEntityRule.validate(NullOrInvalidEntityRule.java:52)
at com.impetus.kundera.graph.GraphGenerator.generate(GraphGenerator.java:125)
at com.impetus.kundera.graph.GraphGenerator.generateGraph(GraphGenerator.java:78)
at com.impetus.kundera.persistence.PersistenceDelegator.persist(PersistenceDelegator.java:130)
at com.impetus.kundera.persistence.EntityManagerImpl.persist(EntityManagerImpl.java:174)

...还有 25 个

如果我直接使用基类而不是子类，我就能够保留实体类。

知道我做错了什么吗？

Answer 1

在我将实体上的 @Table(name = "common", schema = "url_results@hbase_pu") 更改为 @Table(name = "common", schema = "url_results") 后，这才起作用，但是，这看起来像是 kundera 中的一个错误，并向他们提交了一个错误。