https://github.com/fuxingloh/hibernate-validator-enum

So, null & unknown value handling for enum has always been an issue for me, saw the implementation on Amazon Java SDK packages and created @ValidEnum constraints to support using Hibernate Validator library.
https://github.com/fuxingloh/hibernate-validator-enum

bean enum enums hibernate-validator java json validation validator

Last synced: 3 months ago
JSON representation

So, null & unknown value handling for enum has always been an issue for me, saw the implementation on Amazon Java SDK packages and created @ValidEnum constraints to support using Hibernate Validator library.

• Host: GitHub
• URL: https://github.com/fuxingloh/hibernate-validator-enum
• Owner: fuxingloh
• License: apache-2.0
• Created: 2020-04-16T19:21:33.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2020-05-31T05:56:09.000Z (about 5 years ago)
• Last Synced: 2025-04-02T00:49:50.932Z (3 months ago)
• Topics: bean, enum, enums, hibernate-validator, java, json, validation, validator
• Language: Java
• Homepage:
• Size: 70.3 KB
• Stars: 2
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE
  • Code of conduct: CODE_OF_CONDUCT.md

Awesome Lists containing this project

README

        
# Hibernate Validator Enum

So, `null` & unknown value handling for enum has always been an issue for me when converting from JSON to Java.

I saw an implementation on Amazon Java SDK packages. 

Really liked the design, I expanded on it to support JSON using the Jackson packages. 

I have also created @ValidEnum constraints to support using Hibernate Validator library.

## This project consist of

* IntelliJ Live Template

* ValidEnum annotation 

* JSON, Jackson support

* Enum `null`, `unknown value` handling.

## Examples

### Creating the enum with live template

> Using the live template to create enum, my keyword is: `UNKNOWN_TO_SDK_VERSION`

```java

public enum Status {

    ALLOWED("ALLOWED"),

    UNKNOWN_TO_SDK_VERSION(null);

    private final String value;

    Status(String value) {

        this.value = value;

    }

    @Override

    @JsonValue

    public String toString() {

        return String.valueOf(value);

    }

    /**

     * Use this in place of valueOf to convert the raw string returned by the service into the enum value.

     *

     * @param value real value

     * @return Status corresponding to the value

     */

    @JsonCreator

    public static Status fromValue(String value) {

        if (value == null) {

            return null;

        }

        return Stream.of(Status.values()).filter(e -> e.toString().equals(value)).findFirst()

                .orElse(UNKNOWN_TO_SDK_VERSION);

    }

    public static Set knownValues() {

        return Stream.of(values()).filter(v -> v != UNKNOWN_TO_SDK_VERSION).collect(Collectors.toSet());

    }

}

```

### Adding bean validation

```java

public class Bean {

    @ValidEnum

    public Status status;

}

```

## Download

### Maven

```xml

  dev.fuxing

  hibernate-validator-enum

  1.0.0

```

### Gradle

```groovy

compile group: 'dev.fuxing', name: 'hibernate-validator-enum', version: '1.0.0'

```