The principal columns are defined as constant. These are: NGLC_ORIGIN_COLUMN_NAME, origin column; NGLC_DESTINATION_COLUMN_NAME, destination column; NGLC_TIME_COLUMN_NAME, time column
The id column must be "id"

When the nodes are loaded, the nodes are showed
NetworkGraphLifeCycle:
 - The previous step calculation is been done from the previous moment to the current moment (Like next stop)