Esempio n. 1
0
  /**
   * Populates and iterates through a {@link Row} using {@link ColumnDefinitions} provided by the
   * driver.
   *
   * @param row
   * @return
   */
  public T get(Row row) {

    // Entity and its associated id object
    T entity = null;
    Object idObj = null;

    try {
      entity = entityClass.newInstance();
      idObj = null;
      ColumnMapping idcolmap = null;
      // Note that this early invocation means that
      // you can't populate on #setId in your java bean method
      if (embedded != null) {
        idObj = embedded.field.getType().newInstance();
        embedded.set(entity, idObj);
      } else {
        idObj = idMapping.field.getType().newInstance();
        idMapping.set(entity, idObj);
      }

    } catch (InstantiationException | IllegalAccessException e) {
      throw new IllegalAccessError(
          "A configuration exception has occurred in creating entity: " + entityClass);
    }
    ColumnDefinitions metaData = row.getColumnDefinitions();
    List<Definition> defList = metaData.asList();

    for (Definition def : defList) {
      ColumnMapping mapping = colsToFields.get(def.getName());

      if (mapping == null) {

        // it could be an id column
        if (idMapping != null && def.getName().equals(idMapping.name)) {
          idMapping.set(entity, getValue(row, idMapping, def));
          continue;
        }

        // else: need to find it, possible point of refactor
        ColumnMapping nembed = null;
        if (embedded != null) nembed = embedded.get(def.getName());
        if (nembed != null) nembed.set(idObj, getValue(row, nembed, def));

        continue;
      }

      Object value = getValue(row, mapping, def);
      // set it
      if (value != null) mapping.set(entity, value);
    }
    return entity;
  }