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在JPA中,一个实体能否接触嵌入的嵌入物体?
原标题:In JPA does an entity have access to the Embedded of its Embedded object?

实体能否访问 Embeded 对象? 例如:

@Embeddable
public class Address {
    @Embedded
    protected AddressResearchChangeActivity activity;
}

public class ClaimantAddress {
    @Embedded
    private Address address;
}

因此, 索赔人地址 能否进入 AddressReressResearchResearchCange Affactivity ?

当我们保存 expensantAddress 数据时, AddressReressResearchResearchC改变活动 的数据也会保存吗?

问题回答

嵌入的物体只是将多个字段组合在一个实体内的一种方法。当您保存一个实体时,所有东西都保存在该实体内,包括所有嵌入的物体(及其子组合的物体)。





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