backend/src/main/java/nju/seec/helper/data/converter/SetToJsonConverter.java

package nju.seec.helper.data.converter;

import nju.seec.helper.util.JsonUtils;

import javax.persistence.AttributeConverter;
import java.util.Set;

@SuppressWarnings("rawtypes")
public class SetToJsonConverter implements AttributeConverter<Set, String> {
    @Override
    public String convertToDatabaseColumn(Set set) {
        return JsonUtils.toJson(set);
    }

    @Override
    public Set convertToEntityAttribute(String s) {
        return JsonUtils.fromJson(s, Set.class);
    }
}