Accessing Spring Beans inside AttributeConverter class

Question

I\'m developing a Spring Data JPA application, and I\'ve created an AttributeConverter class in order to save an ArrayList of objects as JSON in a

Answer 1

You can inject a bean(@Component, @Service, @Repository) inside an AttributeConverter using static properties

Setps:

1. Set in your AttributeConverter with the following annotations: @Component, @Converter and @Configurable
2. Define the field that you want to autowired with the static modifier access
3. Create an init method in order to autowired the repository
4. Implement the methods defined in the interface AttributeConverter

Basically, the code should look like this...

//Step 1
@Component
@Converter
@Configurable
public class MyAttributeConverter implements AttributeConverter {
    //Where: X = the type of the entity attribute and Y = the type of the database column

    //Step 2
    private static MyRepository myRepository;

    //Step 3
    @Autowired
    public void initMyRepository(MyRepository myRepository){
        MyAttributeConverter.myRepository = myRepository;
    }

    //Step 4
    Y convertToDatabaseColumn(X attribute){//TODO implement method}
    X convertToEntityAttribute(Y dbData){//TODO implement method}
}

I hope it can help!!!