Currently jackson (uncustomized) serializes enums like this: If there is @JsonProperty or @JsonValue, they are used to derive serialized name Otherwise, standard serialization is carried out: index or toString() might be used (depending on the mapper settings), or .name() is called by default For deserializat…
Tag: enums
What is the difference between Sealed class and inheritance principle in Kotlin?
I’m new with Kotlin. I’m reading a book and a sealed class is displayed there as an “extension” of Enum. I can’t see the similarity between them. The way I see the things, Sealed class is more related to inheritance, because each class can inherit from it and to add function and …
Overload resolution ambiguity in third party java library called from kotlin
I wrote a small program in Kotlin which uses library https://github.com/KaptainWutax/SeedUtils, specifically the Dimension enum https://github.com/KaptainWutax/SeedUtils/blob/master/src/main/java/kaptainwutax/seedutils/mc/Dimension.java When I call e.g. Dimension.OVERWORLD.name, I get Overload resolution ambi…
How to create a parent child Json response in Spring Boot with a Enum using Java
I am trying to create a json response from a Spring boot application where the name of the enum will be the parent structure and below that all the child will be residing . What i have created is showing only the child hierarchy but i want the parent also .Like i want below what i am getting is Below
JOOQ – inline Converter not being applied
In my build.gradle I use a converter in my forcedTypes. This works fine where i need it. However, I am trying to convert a comma separated string into a list of enums for a specificuse case: This throws an exception This is the model I am fetching into: Am I missing something? UPDATE: I am able to convert inl…
Use of adding functions/fields to enum cases in Java other than overriding?
By accident I just discovered that the Java 1.8 compiler allows the following syntax: Overriding toString() individually works perfectly fine. A call on an AnimalType.DOG results in the String “I am a dog”. Apart from this though, I couldn’t find any information on what this enum case custom…
Why does a “customised Enum constructor” return the info of all the other Enum type?
Output: I am just wondering why the output would give the information of all the other Enum types despite the fact I only initialized one enum object (TrafficSignal.GREEN). Answer All the enum’s objects instantiated automatically when class loads You said: despite the fact I only initialized one enum object (…
How to print enum description
Im creating a Java application, I used enum to create movie category. When I input MovieCategory.WAR I would like to see War movie(My description) instead of WAR. How is it possible? I tried MovieCategory.WAR.getDescription() but does’t work. Answer The enum works correctly: Or, maybe you want the toStr…
Can Java enum class set default value
Mycode is which I want can I hava a default value which is not in it， can it be set as a default value？ because I have a type is “%”, but enum is not support %, so I want a default value to solve it Answer The default for one who holds a reference to an enum without setting
Swagger/OpenAPI annotations V3 – use Enum values in swagger annotations
I’m creating the the API description of our application using Swagger/OpenApi V3 annotations, imported from following dependency: One of the annotations is a @Schema annotation that accepts an attribute named allowableValues which allows a an array of strings: Now I would like to use a custom method con…