Joda Time

This module provides support for four of the Joda Time value types. In most cases it is recommended to instead use the similar JDK classes (in the java.time) packages. However, Joda is well-established, and you may prefer it, or have legacy applications not yet converted to use the JDK classes.

These are the Joda Time classes supported:

Table 1. Joda Time support
Joda Time class JDK equivalent

org.joda.time.LocalDate

java.time.LocalDate

org.joda.time.DateTime

java.time.DateTime

org.joda.time.LocalDateTime

java.time.LocalDateTime

org.joda.time.LocalTime

java.time.LocalTime

The module’s support consists of:

  • implementations of ValueSemanticsProvider for these types so that the framework can interact and render these values types appropriately (eg with date/time pickers)

  • implementations of javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter (nested subsclasses of o.a.c.valuetypes.jodatime.applib.jaxb.JodaTimeJaxbAdapters) to allow these values to be used in JAXB view models.

Note that both the persistence mechanisms have their own support for persisting these Joda-time types; consult their respective documentation:

Setup

Dependency Management

In your application’s top level pom.xml, add a dependency for this module’s own bill of materials (BOM):

pom.xml
<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.apache.causeway.valuetypes</groupId>
            <artifactId>causeway-valuetypes-jodatime</artifactId>
            <scope>import</scope>
            <type>pom</type>
            <version>2.0.0</version>
        </dependency>
    </dependencies>
</dependencyManagement>

Dependencies / Imports

In those modules where there are domain objects that use the Joda Time value types within JAXB view models:

  • add this dependency:

    pom.xml
    <dependencies>
    <dependency>
        <groupId>org.apache.causeway.valuetypes</groupId>
        <artifactId>causeway-valuetypes-jodatime-applib</artifactId>
    </dependency>
</dependencies>

  • and @Import this module:

    MyModule.java
    @Configuration
@Import({
    CausewayModuleValJodatimeApplib.class,
    // ...
})
public class MyModule { ... }

In addition, in the webapp module of your application, add the following dependencies:

  • for the metamodel:

    pom.xml
    <dependency>
    <groupId>org.apache.causeway.valuetypes</groupId>
    <artifactId>causeway-valuetypes-vega-ui-wkt</artifactId>
</dependency>

And in your application’s App Manifest, import the extension’s implementation module:

AppManifest.java
@Configuration
@Import({
        CausewayModuleValJodatimeIntegration.class,
        ...
})
public class AppManifest {
}

Usage

The property can be declared and used in both entities and view models.

  • if declared in an JPA entity, see the JPA docs for more details.

  • if declared in an JDO entity, see the JDO docs for more details.

  • if declared in a JAXB view model, annotate with the appropriate XmlJavaTypeAdapter:

    @Property
@PropertyLayout
@XmlElement(required = true)
@XmlJavaTypeAdapter(JodaTimeJaxbAdapters.LocalDateToStringAdapter.class)
@Getter
private LocalDate createdOn;