Available in versions: Dev (3.20) | Latest (3.19) | 3.18 | 3.17

Jackson converters

Applies to ✅ Open Source Edition   ✅ Express Edition   ✅ Professional Edition   ✅ Enterprise Edition

In case your database column is of type org.jooq.JSON or org.jooq.JSONB, you may want to attach a custom data type binding that is backed by the popular Jackson library. It is easy to achieve manually using a hand-written Converter, but you can also use the following convenience configuration:

XML (standalone and maven)
Programmatic
Gradle (Kotlin)
Gradle (Groovy)
Gradle (third party)
<configuration>
  <generator>
    <database>
      <forcedTypes>
        <forcedType>

          <!-- Specify the Java type of your custom type. This corresponds to the Converter's <U> type. -->
          <userType>com.example.MyType</userType>

          <!-- Apply the built in converter of type

               - org.jooq.jackson.extensions.converters.JSONtoJacksonConverter or
               - org.jooq.jackson.extensions.converters.JSONBtoJacksonConverter. -->
          <jsonConverter>true</jsonConverter>

          <!-- A Java regex matching fully-qualified columns, attributes, parameters. Use the pipe to separate several expressions. -->
          <includeExpression>.*\.JSON_COLUMN</includeExpression>
        </forcedType>
      </forcedTypes>
    </database>
  </generator>
</configuration>

See the configuration XSD, standalone code generation, and maven code generation for more details.

new org.jooq.meta.jaxb.Configuration()
  .withGenerator(new Generator()
    .withDatabase(new Database()
      .withForcedTypes(
        new ForcedType()

          // Specify the Java type of your custom type. This corresponds to the Converter's <U> type.
          .withUserType("com.example.MyType")

          // Apply the built in converter of type
          // 
          // - org.jooq.jackson.extensions.converters.JSONtoJacksonConverter or
          // - org.jooq.jackson.extensions.converters.JSONBtoJacksonConverter.
          .withJsonConverter(true)

          // A Java regex matching fully-qualified columns, attributes, parameters. Use the pipe to separate several expressions.
          .withIncludeExpression(".*\\.JSON_COLUMN")
      )
    )
  )

See the configuration XSD and programmatic code generation for more details.

// The jOOQ-codegen-gradle plugin has been introduced in version 3.19 only.
// The jOOQ-codegen-gradle plugin has been introduced in version 3.19 only.
generationTool {
  generator {
    database {
      forcedTypes {
        forcedType {

          // Specify the Java type of your custom type. This corresponds to the Converter's <U> type.
          userType = "com.example.MyType"

          // Apply the built in converter of type
          // 
          // - org.jooq.jackson.extensions.converters.JSONtoJacksonConverter or
          // - org.jooq.jackson.extensions.converters.JSONBtoJacksonConverter.
          jsonConverter = true

          // A Java regex matching fully-qualified columns, attributes, parameters. Use the pipe to separate several expressions.
          includeExpression = ".*\\.JSON_COLUMN"
        }
      }
    }
  }
}

See the configuration XSD and gradle code generation for more details.

As always, when regular expressions are used, they are regular expressions with default flags.

In order to access these converters, just add the following dependency to your project:

<dependency>
    <!-- Use org.jooq                for the Open Source Edition
             org.jooq.pro            for commercial editions with Java 17 support,
             org.jooq.pro-java-11    for commercial editions with Java 11 support,
             org.jooq.pro-java-8     for commercial editions with Java 8 support,
             org.jooq.trial          for the free trial edition with Java 17 support,
             org.jooq.trial-java-11  for the free trial edition with Java 11 support,
             org.jooq.trial-java-8   for the free trial edition with Java 8 support

         Note: Only the Open Source Edition is hosted on Maven Central.
               Install the others locally using the provided scripts, or access them from here: https://repo.jooq.org -->
    <groupId>org.jooq</groupId>
    <artifactId>jooq-jackson-extensions</artifactId>
    <version>3.17.19</version>
</dependency>

For more details about how to match columns, please refer to the section about matching columns for forced types.

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