Finite state machine

/**
 * Repair Status
 * 
 * @author sursini
 *
 */
public enum RepairStatus {

    ORDER_CREATION        ("ORDER_FILLED"),
    
    
    QUOTATION_IN_PROGRESS ("USER_QUOTE_ACCEPTANCE_WAITING"),
    USER_QUOTE_ACCEPTANCE_WAITING ("QUOTE_ACCEPTED","QUOTE_REFUSED"),
    QUOTE_ACCEPTED         ("WORK_IN_PROGRESS","READY_TO_TRANSFER"),
    QUOTE_REFUSED         ("READY_GATHER"),
    
    ORDER_FILLED        ("WORK_IN_PROGRESS","QUOTE_REQUESTED"),
    QUOTE_REQUESTED     ("QUOTATION_IN_PROGRESS"),
    DIAGNOSIS             ("WORK_IN_PROGRESS"),
    WORK_IN_PROGRESS     ("WORK_COMPLETED","NOT_FIXABLE","READY_TO_TRANSFER","SOFT_UPGRADE_REQUESTED"),
    WORK_COMPLETED         ("VERIFICATION_OK","VERIFICATION_KO"),
    SOFT_UPGRADE_REQUESTED ("SOFT_UPGRADE_DONE"),
    SOFT_UPGRADE_DONE    ("WORK_COMPLETED"),
    NOT_FIXABLE            ("READY_GATHER","DESTRUCTED_ON_REQUEST"),
    //DEVIS
    //Attente de pice
    

    /** Transfer **/
    READY_TO_TRANSFER     ("TRANSFERED"),
    TRANSFERED             ("TRANSFER_RETURNED","DESTRUCTED_ON_REQUEST"),
    
    TRANSFER_RETURNED         ("VERIFICATION_OK","VERIFICATION_KO","NOT_FIXABLE"),            //RestituŽ
    DESTRUCTED_ON_REQUEST    ("CLOSED"),

    /** Verification **/
    VERIFICATION_KO            ("READY_TO_TRANSFER","WORK_IN_PROGRESS"),
    VERIFICATION_OK            ("READY_GATHER"),
    
    READY_GATHER             ("GATHERED","CUSTOMER_NOTIFIED"),
    CUSTOMER_NOTIFIED       ("GATHERED"),
    GATHERED                 ("CLOSED"), 
    CLOSED,
    DELETED
    ;
    
    private String[] nexts;
    
    private RepairStatus(String... nextStatuses){
        this.nexts = nextStatuses;
    }
    
    public List getNexts(){
        List result = new ArrayList();
        for (String status : nexts) {
            result.add(RepairStatus.valueOf(status));
        }
        return result;
    }
    
    public String getKey(){
        return getClass().getSimpleName().toLowerCase() + "." + name().toLowerCase();
    }
    
    static public Set listCollected(){
        Set result = new HashSet();
        result.add(GATHERED);
        result.add(CLOSED);
        result.add(DELETED);
        return result;
    }

    static public Set listNotCollected(){
        Set result = new HashSet();
        Collections.addAll(result, values());
        result.removeAll(listCollected());
        return result;
    }
}

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