Exemplo n.º 1
0
 /** ** Returns an OrderedMap of defined primary keys ** @return map of defined primary keys */
 public Map<DBField, Object> getKeyMap() {
   Map<DBField, Object> keyMap = new OrderedMap<DBField, Object>(); // ordered key list
   if (this.dbFactory != null) {
     DBField keyField[] = this.dbFactory.getKeyFields();
     for (int i = 0; i < keyField.length; i++) {
       String key = keyField[i].getName();
       Object val = null;
       if (this.dbRecord != null) {
         // all key values will be defined
         val = this.dbRecord.getFieldValue(key);
       } else {
         // use parent keys
         DBFactoryTree parent = this.getParentNode();
         for (; (parent != null) && (val == null); parent = parent.getParentNode()) {
           DBRecord dbr = parent.getDBRecord();
           if (dbr == null) {
             // stop at the first undefined ancestor
             break;
           } else if (dbr.hasField(key)) {
             // try getting key value from ancestor
             DBField parFld = dbr.getField(key);
             if ((parFld != null) && parFld.isPrimaryKey()) {
               // primary key fields only
               val = dbr.getFieldValue(key);
             }
           }
         }
       }
       // save key DBField and value
       if (val != null) {
         keyMap.put(keyField[i], val);
       } else {
         keyMap.put(keyField[i], null);
       }
     }
   }
   return keyMap;
 }
Exemplo n.º 2
0
  /**
   * ** Sets the DBRecord for this node ** @param record The DBRecord to set ** @return True if the
   * DBRecord was successfully set, false otherwise
   */
  public boolean setDBRecord(DBRecord<?> record) {

    /* pre-checks */
    this.dbRecord = null;
    if (record == null) {
      return false;
    } else if (!this.hasDBFactory()) {
      // TODO: we probably could just retrieve the DBFactory from the DBRecord
      Print.logError("DBFactory is not defined!");
      return false;
    }

    /* check DBFactory */
    DBFactory<?> rcdFact = DBRecord.getFactory(record);
    if (!this.getDBFactory().equals(rcdFact)) {
      Print.logError("Invalid DBFactory for specified DBRecord!");
      return false;
    }

    /* set DBRecord */
    this.dbRecord = record;
    return true;
  }
Exemplo n.º 3
0
  /**
   * ** Gets the DBRecord associated with this key ** @param reload If the record should be reloaded
   * before it is returned ** @return The DBRecord associated with this key
   */
  public gDBR getDBRecord(boolean reload) {
    // returns null if there is an error

    /* create record */
    if (this.record == null) {
      try {
        this.record = DBRecord._createDBRecord(this);
      } catch (DBException dbe) {
        // Implementation error (this should never occur)
        // an NPE will likely follow
        Print.logStackTrace("Implementation error - cant' create DB record", dbe);
        return null;
      }
    }

    /* reload */
    if (reload) {
      // 'reload' is ignored if key does not exist
      this.record.reload();
    }

    /* return record (never null) */
    return this.record;
  }