converter을 통해 DB에 원하는 format으로 저장

• enum값을 DB에 넣을 시 자동으로 value값으로 넣어주는 converter

public enum CarType {
	SUV("1"), CUV("2"), MPV("3"), RV("4");
    private String value;
    
    @Converter(autoApply = true)
    public static class CarTypeConverter extends AbstractBaseEnumConverter<CarType, String>{
    	@Override
        protected CarType[] getValueList() {
        	return CarType.values();
        }
    }
}

• class의 Object 값을 DB에 원하는 형태로 저장해 주는 converter

@Getter
@Builder
public class Receipt {
	private ReceiptType receiptType;
    //receiptType이 SUCCESS일때만 requestId가 존재
    private Integer requestId;
    
    @Converter(autoApply = true)
    public static class ReceiptConverter implements AttributeConverter<Receipt, String> {
    	@Override
        public String convertToDataBaseColumn(Receipt receipt) {
        	final String prefix = " (REQUEST ID : ";
            final String postfix = ")";
            
            String returnString = receipt.getReceiptType().name();
            if(receipt.getRequestId() != null) {
            	returnString += prefix + receipt.getRequestId() + postfix;
            }
            
            return returnString;
        }
        
        @Override
        public Receipt convertToEntityAttrubute(String data) {
        	if(data.contains(ReceiptType.SUCCESS.name())) {
            	final String splitPattern = "\\(";
                final String replacePattern = "[^0-9]";
                
                String []arr = data.split(splitPattern);
                
                return Receipt.builder()
                	.receiptType(ReceiptType.SUCCESS)
                    .requestId(Integer.valueOf(arr[1].replaceAll(replacePattern, "")))
                    .build();
            }
            
            return Receipt.builder()
            	.receiptType(ReceiptType.valueOf(data))
                .build();
        }
    }
    
    public enum ReceiptType {
    	CANCEL, SUCCESS, LIMIT_EXCESS
    }
}