属性覆盖“...”不能被解析为一个属性上

Question

我们得到了Eclipse的错误（从JPA Problem验证）是这样的：

Attribute override "<myAttrName>" cannot be resolved to an attribute on the embeddable "..." 

与embeddable（也许还像mapped super class）上的一些JPA我们想要正确覆盖的属性，例如像这样：

@Embeddable 
public class DaoUsrMod { 

    @ManyToOne(fetch = FetchType.LAZY) 
    @JoinColumn(name = "u_lmod_id" , insertable = false , updatable = false) 
    private DaoUser usr ; 
    ... 
} 


@Entity 
public class DaoFoo { 

    @Embedded 
    @AttributeOverrides({ 
     @AttributeOverride(name = "usr" , column = @Column(name = "u_created_id")) 
    }) 
    private DaoUsrMod            usrModAngel ; 

    ... 
} 

Answer 1

看来，这是一个Eclipse的bug，所以你可以在此类型的错误更改为少占主导地位的水平（我们把它改为警告）这里（为Eclipse Neon）：

Project -> Properties -> JPA -> Errors/Warnings -> Database 
    -> Attribute/association overrides 
    (2nd entry:) 
    -> Attribute override name cannot be resolved to an attribute: [Error] 

例如到：

-> Attribute override name cannot be resolved to an attribute: [Warning] 

注意到从zonacroft blog

溶液