我正在运行 WebSphere v8,并在 Java EE 6 环境中使用 JPA 持久性。
当我尝试运行处理特定实体的代码时,我遇到了这个异常:
javax.ejb.EJBTransactionRolledbackException: nested exception is: javax.ejb.EJBTransactionRolledbackException: nested exception is: javax.ejb.EJBException: See nested exception; nested exception is: org.apache.openjpa.persistence.ArgumentException: The type "class au.com.combined.domain.changeroutine.ChangeRoutineConsumedPK" has not been enhanced.
然而,this article说我的类应该在运行时得到增强。 ChangeRoutineConsumedPK 是一个可嵌入类。有人可以看看我的课并告诉我我做错了什么吗?谢谢。
ChangeRoutineConsumed:
@Entity
@Table(name = ChangeRoutineConsumed.TABLE_NAME)
public class ChangeRoutineConsumed extends BaseBusinessObject {
public static final String TABLE_NAME = "COCHANGEROUTINECONSUMED";
@EmbeddedId
private ChangeRoutineConsumedPK id;
protected ChangeRoutineConsumed() {
super();
}
public ChangeRoutineConsumed(@Min(1) long changeRoutineId, @NotNull String consumedBy){
this(new ChangeRoutineConsumedPK(changeRoutineId, consumedBy));
}
public ChangeRoutineConsumed(@NotNull ChangeRoutineConsumedPK id){
super();
setId(id);
}
...
public int hashCode(){...};
public boolean equals(Object obj){...}
}
ChangeRoutineConsumedPK:
@Embeddable
public class ChangeRoutineConsumedPK {
@Column
private long changeRoutineId;
@Column
private String consumedBy;
public ChangeRoutineConsumedPK(){}
public ChangeRoutineConsumedPK(long changeRoutineId, String consumedBy) {
setChangeRoutineId(changeRoutineId);
setConsumedBy(consumedBy);
}
...
public int hashCode() {...}
public boolean equals(Object obj) {...}
}
最佳答案
ChangeRoutineConsumedPK 类未添加到 persistence.xml 并且我已关闭自动类扫描。
将类添加到 persistence.xml 解决了问题
<persistence-unit ...>
...
<class>au.com.combined.domain.changeroutine.ChangeRoutineConsumedPK</class>
...
</persistence-unit>
关于java - 类型 "class *"未被增强的JPA异常,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/19042416/