合成主键
适用于 ✅ 开源版 ✅ 专业版 ✅ 企业版
jOOQ 的代码生成器可以识别由数据库声明并报告为主键的主键。但是，有些数据库不会报告所有键，或者有些表没有启用主键，或者有时视图是对底层表的 1:1 表示，但它不公开键信息。在这些情况下，此正则表达式可以匹配用户希望“假装”是主键一部分的所有列。如果需要复合合成主键，则正则表达式应匹配该表中属于主键的所有列。例如，复合合成主键由表 SCHEMA.TABLE 中的 (COLUMN1, COLUMN2) 组成
XML（独立和 Maven）
编程方式
Gradle (Kotlin)
Gradle (Groovy)
Gradle（第三方）
<configuration>
<generator>
<database>
<syntheticObjects>
<primaryKeys>
<primaryKey>
<!-- Optional name of the primary key, if tables matches only a single table. -->
<name>PK_TABLE</name>
<!-- Optional regular expression matching all tables that have this primary key. -->
<tables>SCHEMA\.TABLE</tables>
<!-- List multiple fields in the key order -->
<fields>
<field>COLUMN1</field>
<field>COLUMN2</field>
</fields>
<!-- Alternatively, instead of listing columns above, promote a unique key to a primary key, by name. -->
<key>UK_TABLE</key>
</primaryKey>
</primaryKeys>
</syntheticObjects>
</database>
</generator>
</configuration>
有关更多详细信息，请参见 configuration XSD，独立代码生成和 maven 代码生成。
new org.jooq.meta.jaxb.Configuration()
.withGenerator(new Generator()
.withDatabase(new Database()
.withSyntheticObjects(new SyntheticObjectsType()
.withPrimaryKeys(
new SyntheticPrimaryKeyType()
// Optional name of the primary key, if tables matches only a single table.
.withName("PK_TABLE")
// Optional regular expression matching all tables that have this primary key.
.withTables("SCHEMA\\.TABLE")
// List multiple fields in the key order
.withFields(
"COLUMN1",
"COLUMN2"
)
// Alternatively, instead of listing columns above, promote a unique key to a primary key, by name.
.withKey("UK_TABLE")
)
)
)
)
有关更多详细信息，请参见 configuration XSD 和 程序化代码生成。
import org.jooq.meta.jaxb.*
configuration {
generator {
database {
syntheticObjects {
primaryKeys {
primaryKey {
// Optional name of the primary key, if tables matches only a single table.
name = "PK_TABLE"
// Optional regular expression matching all tables that have this primary key.
tables = "SCHEMA\\.TABLE"
// List multiple fields in the key order
fields {
field = "COLUMN1"
field = "COLUMN2"
}
// Alternatively, instead of listing columns above, promote a unique key to a primary key, by name.
key = "UK_TABLE"
}
}
}
}
}
}
有关更多详细信息，请参见 configuration XSD 和 gradle 代码生成。
configuration {
generator {
database {
syntheticObjects {
primaryKeys {
primaryKey {
// Optional name of the primary key, if tables matches only a single table.
name = "PK_TABLE"
// Optional regular expression matching all tables that have this primary key.
tables = "SCHEMA\\.TABLE"
// List multiple fields in the key order
fields {
field = "COLUMN1"
field = "COLUMN2"
}
// Alternatively, instead of listing columns above, promote a unique key to a primary key, by name.
key = "UK_TABLE"
}
}
}
}
}
}
有关更多详细信息，请参见 configuration XSD 和 gradle 代码生成。
// The jOOQ-codegen-gradle plugin has been introduced in version 3.19. // Please use the official plugin instead of the third party plugin that was recommended before.
一如既往，当使用正则表达式时，它们是具有默认标志的正则表达式。
如果正则表达式匹配表中已存在主键的列，则现有主键将被合成主键替换。但是，它仍将被报告为唯一键。
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