在 JOOQ 中使用多重集时布尔值未正确映射

Question

ProductCategoryD 到 class :

public class ProductCategoryDto {
    private UUID id;

    private String title;

    private String description;

    private Timestamp updatedAt;

    private Timestamp createdAt;

    private List<CategoryAttribute> attributes;
}

类别属性class:

public class CategoryAttribute {
    private UUID id;

    private String title;

    private String attributeType;

    private Boolean multiValued;

    private Boolean nullable;

    private Boolean isUnique;

    private Integer indexValue;

    private String description;

    private Boolean isActive;

    private UUID categoryId;

    private Timestamp updatedAt;

    private Timestamp createdAt;
}

需要执行的查询为

this.dslContext.select(
                PRODUCT_CATEGORY.asterisk(),
                multiset(
                    selectFrom(CATEGORY_ATTRIBUTE).where(CATEGORY_ATTRIBUTE.CATEGORY_ID.eq(PRODUCT_CATEGORY.ID))
                ).as("attributes")
            )
            .from(PRODUCT_CATEGORY)
            .where(PRODUCT_CATEGORY.ID.eq(id))
            .fetchOneInto(ProductCategoryDto.class);

查询的输出是

{
    "id": "7e8d5560-62dc-48fc-b835-65642024fa0a",
    "title": "Mobile",
    "description": "It is an electronic device",
    "updatedAt": "2022-02-12T08:29:04.923+00:00",
    "createdAt": "2022-02-12T08:28:14.764+00:00",
    "attributes": [
        {
            "id": "8bfd98ca-101f-43ef-8a53-770e933265b6",
            "title": "RAM",
            "attributeType": "8",
            "multiValued": null,
            "nullable": null,
            "isUnique": null,
            "indexValue": 1,
            "description": "description",
            "isActive": null,
            "categoryId": "7e8d5560-62dc-48fc-b835-65642024fa0a",
            "updatedAt": "2022-02-12T08:42:02.297+00:00",
            "createdAt": "2022-02-12T08:42:02.297+00:00"
        }
    ]
}

数据库创建语句：

Product Category:
CREATE TABLE `product_category` (
  `id` varchar(36) COLLATE utf8mb4_unicode_ci NOT NULL,
  `created_at` datetime(6) DEFAULT NULL,
  `description` longtext COLLATE utf8mb4_unicode_ci,
  `title` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL,
  `updated_at` datetime(6) DEFAULT NULL,
  PRIMARY KEY (`id`)
)

Attribute table:
CREATE TABLE `category_attribute` (
  `id` varchar(36) COLLATE utf8mb4_unicode_ci NOT NULL,
  `attribute_type` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL,
  `category_id` varchar(36) COLLATE utf8mb4_unicode_ci NOT NULL,
  `created_at` datetime(6) DEFAULT NULL,
  `description` longtext COLLATE utf8mb4_unicode_ci,
  `index_value` int NOT NULL,
  `is_active` bit(1) NOT NULL DEFAULT b'1',
  `is_unique` bit(1) NOT NULL DEFAULT b'0',
  `multi_valued` bit(1) NOT NULL DEFAULT b'0',
  `nullable` bit(1) NOT NULL DEFAULT b'0',
  `title` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL,
  `updated_at` datetime(6) DEFAULT NULL,
  PRIMARY KEY (`id`)
)

pom.xml中的代码生成配置：


            <plugin>
                <groupId>org.jooq</groupId>
                <artifactId>jooq-codegen-maven</artifactId>
                <executions>
                    <execution>
                        <id>jooq-codegen</id>
                        <phase>generate-sources</phase>
                        <goals>
                            <goal>generate</goal>
                        </goals>
                        <configuration>
                            <jdbc>
                                <driver>com.mysql.cj.jdbc.Driver</driver>
                                <!--suppress UnresolvedMavenProperty -->
                                <url>${spring.datasource.url}</url>
                                <!--suppress UnresolvedMavenProperty -->
                                <user>${spring.datasource.username}</user>
                                <!--suppress UnresolvedMavenProperty -->
                                <password>${spring.datasource.password}</password>
                            </jdbc>
                            <generator>
                                <database>
                                    <name>org.jooq.meta.mysql.MySQLDatabase</name>
                                    <includes>.*</includes>
                                    <excludes/>
                                    <!--suppress UnresolvedMavenProperty -->
                                    <inputSchema>${database.name}</inputSchema>

                                    <forcedTypes>
                                        <forcedType>
                                            <userType>java.util.UUID</userType>
                                            <converter>com.project.ecommerce.converters.jooq.JooqUUIDConverter</converter>
                                            <includeExpression>.*.ID</includeExpression>
                                            <includeTypes>.*</includeTypes>
                                        </forcedType>
                                    </forcedTypes>
                                </database>
                                <generate>
                                    <pojos>false</pojos>
                                    <pojosEqualsAndHashCode>
                                        true
                                    </pojosEqualsAndHashCode>
                                    <javaTimeTypes>true</javaTimeTypes>
                                    <fluentSetters>true</fluentSetters>
                                </generate>
                                <target>
                                    <packageName>
                                        com.jooq.models
                                    </packageName>
                                    <directory>
                                        target/generated-sources/jooq
                                    </directory>
                                </target>
                            </generator>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

我得到的所有布尔字段都为空，而它们在实际数据中不为空。如何正确映射布尔字段，以便在使用 multiset

时布尔字段中没有空值

Answer 1

这是一个错误，应该很快在 jOOQ 3.17.0、3.16.5、3.15.9 中修复：https://github.com/jOOQ/jOOQ/issues/13089

这与 jOOQ 在使用 SQL/JSON MULTISET 仿真时没有正确序列化 BIT(1) 值有关。如果您使用 TINYINT 而不是 BIT(1) 来编码您的布尔值，情况会更好。另请注意，jOOQ 的未来版本可能会修复他们对 BIT 类型的理解，它更像是 java.lang.BitSet 而不是 java.lang.Boolean：https://github.com/jOOQ/jOOQ/issues/10323

虽然您目前无法影响 SQL/JSON 仿真，但您可以将 BIT 列显式转换为 BOOLEAN，例如：CATEGORY_ATTRIBUTE.NULLABLE.cast(SQLDataType.BOOLEAN)

在 JOOQ 中使用多重集时布尔值未正确映射

Boolean values are not mapping properly when using multiset in JOOQ

java

mysql

sql

jooq