Module org.yamcs.core
Package org.yamcs.mdb

Interface SpaceSystemLoader

All Known Implementing Classes:
AbstractFileLoader, BaseSpreadsheetLoader, EmptyNodeLoader, SpreadsheetLoader, V6Loader, V6LoaderBase, V7Loader, V7LoaderBase, XtceLoader
public interface SpaceSystemLoader
Interface implemented by the database loaders.

  • Method Details

    • load

      @Deprecated SpaceSystem load() throws ConfigurationException, DatabaseLoadException
      Deprecated.
      this method is deprecated in favour of loadList()
      loads the SpaceSystem database in memory. Some references may be unresolved
      Throws:
      DatabaseLoadException
      ConfigurationException

    • loadList

      default List<SpaceSystem> loadList() throws DatabaseLoadException
      Loads a list of SpaceSystems.

      They will be added to the parent in the order in which they appear in the list.

      By default this method calls the load() and returns a list with one element.

      Returns:
      - the list of
      Throws:
      DatabaseLoadException

    • needsUpdate

      boolean needsUpdate(RandomAccessFile consistencyDateFile) throws IOException, ConfigurationException
      Parameters:
      consistencyDateFile - check in this file when the last database has been loaded
      Returns:
      if this loader has to reload the database from its source
      Throws:
      IOException - if the consistencyDateFile can not be read for some reason
      ConfigurationException

    • getConfigName

      String getConfigName() throws ConfigurationException
      The filename used to save the database after all the loaders have loaded it, is based on a concatenation of the config names returned by the loaders. Thus if a loader can have multiple versions of the database, they should be saved in multiple files.
      Returns:
      a string to be used as the filename where the serialised instance will be stored.
      Throws:
      ConfigurationException - in case some of the configuration properties do not exist

    • writeConsistencyDate

      void writeConsistencyDate(FileWriter consistencyDateFile) throws IOException
      Parameters:
      consistencyDateFile - the file in which the consistency date should be written
      Throws:
      IOException - if the consistency date file can't be written for some reason