How to use valueOf when using an enum interface

Question

First, my use case: I have a list of Transaction Types that belong to two separate categories (let's say A and B). We ingest a file with a column designating the transaction type, but one file can contain transactions that belong to both "A" and "B". In all my previous logic, I could treat these transaction types exactly the same so I had ONE Enum for TransactionType, but now in a few instances I need to know whether they belong to group "A" or "B".

After researching I decided to try to implement an interface, BaseTransactionTypeEnum, and two enums ATransactionTypeEnum and BTransactionTypeEnum that implement this interface.

public interface BaseTransactionTypeEnum {

BaseTransactionTypeEnum fromString(String text);
String getText();
String getCategory();

Then ATransactionTypeEnum and BTransactionTypeEnum look like:

public enum ATransactionTypeEnum implements BaseTransactionTypeEnum{

//**Enum values.....//


private String text;

public String getCategory(){
    return "ATransactionType";
}

ATransactionTypeEnum(String text) {
    this.text = text;
}

@JsonValue
public String getText() {
    return this.text;
}


@JsonCreator
public ATransactionTypeEnum fromString(String text) {
    for (ATransactionTypeEnum t : ATransactionTypeEnum.values()) {
        if (t.text.equalsIgnoreCase(text)) {
            return t;
        }
    }
    return UNKNOWN;
}

But I'm running into issues where I previously used valueOf to set the TransactionType to transactions read from the file. Is there a way to use valueOf() when you use an enum implementing an interface? I tried utilizing the fromString method but getting errors about it being a non-static method.

I'm starting to wonder if I'm just totally off-base here, perhaps there is a better way to designate the Category of each Enum value that would be easy to check later in my code?