Custom datatypes in Jmix 2.0

Support
#1

Starting migrating (custom/organization) add-ons to prepare migration of the first application I’m experiencing first problems.

The following add-on setup worked until Jmix version 1.5.3 - but does not in Jmix 2.0.1.

There is a **base** add-on (kind of organization core) providing custom entity datatypes, e.g.:

  • java.time.Duration
  • java.time.Period
  • java.time.MonthDay
  • java.time.YearMonth
  • java.time.ZoneOffset

Other custom add-on are using them implicitly by defining (JPA and DTO) entities. But since Jmix 2.0 the contextLoads() test fail:

org.springframework.beans.BeanInstantiationException: Failed to instantiate [io.jmix.core.impl.MetadataLoader]: Constructor threw exception
    at app//org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:224)
    at app//org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:110)
    at app//org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:323)
    ... 164 more

    Caused by: java.lang.IllegalStateException: Can't find range class 'java.time.ZoneOffset' for property 'ls**mdl_***SystemInfoDTO.zoneOffset'
        Caused by:
            at io.jmix.core.impl.MetaModelLoader$RangeInitTask.execute(MetaModelLoader.java:1075)
            at io.jmix.core.impl.MetaModelLoader.loadModel(MetaModelLoader.java:145)
            at io.jmix.core.impl.MetadataLoader.<init>(MetadataLoader.java:61)
            at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
            at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77)
            at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
            at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
            at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:480)
            at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:211)
            ... 166 more

I experienced a problem with a similar reading symptom some time ago: https://forum.jmix.io/t/using-custom-datatype-from-another-module-add-on/945/4. Neither me nor Jmix studio changed the module configuration while migrating from Jmix 1.5.3 to 2.0.1.

Trying to find some documentation about changed datatype handling, I noticed the modules API https://docs.jmix.io/jmix/modularity/extension.html#modules-api. I could not solve the issue but helped debugging the loaded modules and datatypes. The custom addons/modules are there, but the new datatypes are missing (22 datatypes defined by jmix core only):

Jmix-2.0.1_missing-custom-datatypes

I still need some help to find out why custom datatypes are not loaded.

#3

Dear support,

are there any news on this topic? The issue stops me from migration any application.

#4

Hello,

I’m working on your problem, I will revert back to you after I find a solution.

Regards,
Nikita

1 Like
#5

Hello @shchienko

are there any news on this topic?

Support binary(16) type for UUID in reverse engineering database to model
#6

Dear support,

it’s been a while since the last response in August. Are there still no news on that topic?

I’m still wondering when or even if I can start using Jmix 2.

#7

Hello,

Sorry, I lost track of the topic. Created a test project with custom datatype.

In the add-on I created a custom datatype from the documentation - Data Types :: Jmix Documentation.

The standard add-on configuration is enough to work:

@Configuration
@ComponentScan
@ConfigurationPropertiesScan
@JmixModule(dependsOn = {EclipselinkConfiguration.class, FlowuiConfiguration.class})
@PropertySource(name = "com.company.ja", value = "classpath:/com/company/ja/module.properties")
public class JaConfiguration {

Add-on with custom datatype:
jmix-datatype-example-addon.zip (13.3 KB)
jmix-datatype-example-addon-starter.zip (3.7 KB)

Test project with add-on:
jmix-datatype-example.zip (123.0 KB)

Regards,
Nikita

#9

Hello @shchienko,

thank you for your response!

The add-ons which I am going to migrate are not depending on any UI. Both are very basic and are also used in REST-only applications (but UI applications as well):

  • the datatype providing add-on: base
    and
  • the datatype consuming/using add-on which defines DTO entities using one of these custom data types.

Both worked fine in Jmix 1.5.3. Is there an additional Jmix Module dependency which is required with Jmix 2.0.?

#10

Can you provide a minimal demo project (Jmix 2.0) to quickly find a solution to your problem?

#11

@shchienko I spent a couple of days creating a kind-of-public example and and could not reproduce the issue with the example.

Then I noticed that the newly created example contained the spring-boot 3 way of registering auto configurations:
src/main/resources/META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports
additionally to the springboot 2 way:
src/main/resouces/META-INF/spring.factories

I added the imports-file which solved the issue.

My first migration attempt was in August 2023. So I cannot say which Jmix plugin version I used for the first attempt.