Is there a way to inline enums?

[electrosaur]

If I have X{TimeUnit y} I'd like to produce {"X": "object {"y": "string" enum ["HOURS", "DAYS", ...]}}.

[CarstenWickner]

Hi @electrosaur,

Is the Option.FLATTENED_ENUMS fulfilling your requirement?

As per https://victools.github.io/jsonschema-generator/#generator-options

5 - Option.FLATTENED_ENUMS

Behaviour if included:

• Treating enountered enum types as { "type": "string" } schema with the names of the enum constants being listed as its enum values.

That should produce something like this:

{
  "type": "object",
  "properties": {
    "y": {
      "type": "string",
      "enum": ["HOURS", "DAYS", ...]
    }
  }
}

---

If you want to generally avoid that enums are being referenced via the $defs/definitions, then please refer to my answer on this issue: #123

to inline all enums you can use configBuilder.forTypesInGeneral().withCustomDefinitionProvider(new InlineAllEnumsDefinitionProvider()) with an instance of this custom definition provider:

class InlineAllEnumsDefinitionProvider implements CustomDefinitionProviderV2 {
    @Override
    public CustomDefinition provideCustomSchemaDefinition(ResolvedType javaType, SchemaGenerationContext context) {
        if (javaType.isInstanceOf(Enum.class)) {
            ObjectNode standardDefinition = context.createStandardDefinition(javaType, this);
            return new CustomDefinition(standardDefinition, true);
        }
        return null;
    }
}

The documentation of custom definition providers in general can be found here:
https://victools.github.io/jsonschema-generator/#custom-type-definitions

[electrosaur]

Hi Carsten: Thanks for the prompt response. Maybe I'm not doing it right. I have say TimeUnit timeUnit as a member of my POJO. I'm getting `timeUnit -> "{"$ref":"#/$defs/java.util.concurrent.TimeUnit"}"` Maybe it's clashing with the DEFINITIONS_FOR_ALL_OBJECTS? My code is: ```java SchemaGeneratorConfigBuilder configBuilder =new SchemaGeneratorConfigBuilder(SchemaVersion.DRAFT_2019_09,OptionPreset.PLAIN_JSON) .with(module) .with(FLATTENED_ENUMS) .with(DEFINITIONS_FOR_ALL_OBJECTS); configBuilder.forTypesInGeneral() .withIdResolver(scope ->scope.getType().getErasedType().getName()); configBuilder.forTypesInGeneral() .withDefinitionNamingStrategy(new DefaultSchemaDefinitionNamingStrategy() { @OverRide public String getDefinitionNameForKey(DefinitionKey key,SchemaGenerationContext generationContext) { return key.getType().getErasedType().getName(); } }); ``` And I'm reading the fields of the object via `schema.get("properties").fields().forEachRemaining(...)` Shankar

[CarstenWickner]

Hi Shankar,

Indeed, the Option.DEFINITIONS_FOR_ALL_OBJECTS will result in your enum being moved into the $defs/definitions together with all other sub-schemas.

EDIT: I'll include the particular solution in my answer above.