spring-data - 如何映射 1 :1 relationship with Spring Data R2DBC?

Question

我有这些简化的表格

CREATE TABLE address(
    id VARCHAR(36) NOT NULL PRIMARY KEY,
    zip VARCHAR(5) NOT NULL,
    city VARCHAR(32) NOT NULL
)
CREATE TABLE customer(
    id VARCHAR(36) NOT NULL PRIMARY KEY,
    name VARCHAR(32) NOT NULL,
    address_fk VARCHAR(36) NOT NULL,
    FOREIGN KEY (address_fk) REFERENCES address(id)
)

以及这些简化的 Kotlin 类:

data class Address(val id: String, val zip: String, val city: String)
data class Kunde(val id: String?, val name: String, val address: Address)

当我使用 @Column(address_fk)为属性(property) address我得到一个 ConverterNotFoundException没有来自 String 的转换器至 Address被找到。还有 @MappedCollection而不是 @Column看起来不合适。任何提示表示赞赏。

Answer 1

R2DBC 尚不支持关系
https://github.com/spring-projects/spring-data-r2dbc/issues/99