Package edm.edom3

Interface EDMDatabase

  • public interface EDMDatabase
    The EDMDatabase interface is used to
    - retrieve info about an EDM database without opening it - open / close / create / delete EDM database

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      void close()
      Closes an open EDMdatabase.
      void create()
      Creates a new EDMdatabase and attach the actual EDMdatabase to the EDMserver used by the caller.
      void delete()
      Delete an existing EDMdatabase, i.e.
      boolean exists()
      Check database existance
      int getBlockSize()
      Get database block size.
      int getMaxModels()
      Get database max models.
      int getVersion()
      Get database version
      void open()
      Opens an existing EDMdatabase and attach the actual EDMdatabase to the EDMserver used by the caller.

    • Method Detail

      • close

        void close()
    throws EdmiException
        Closes an open EDMdatabase. No access to the actual EDMdatabase is permitted until the EDMdatabase is opened by the openDatabase() call. To ensure database consistency, an invocation of the closeDatabase call should always be performed to terminate the access to an EDMdatabase from an application program. Before the current open EDMdatabase is closed, all open repositories and all open models in the actual EDMdatabase will be closed to ensure database consistency. When an open EDMserver session exists upon call to closeDatabase(), the open EDMserver session will be closed. If the calling user is connected to the EDMserver the closeDatabase() call will disconnect the calling user from the EDMserver.
        Throws:
        EdmiException - If the method fails.

      • open

        void open()
   throws EdmiException
        Opens an existing EDMdatabase and attach the actual EDMdatabase to the EDMserver used by the caller. An EDMdatabase must be open before any access to the database is permitted. In a single-user system the EDMserver is embedded in the EDMinterface, in a multi-user system the EDMserver is running as a separate process on the same system or on another system than the caller. One EDMServer can handle only one single EDMdatabase at a time, i.e. the currently opened database must be closed before another one can be opened.
        Throws:
        EdmiException - If the method fails.

      • create

        void create()
     throws EdmiException
        Creates a new EDMdatabase and attach the actual EDMdatabase to the EDMserver used by the caller. No EDMdatabase can be open when this call is used.
        Throws:
        EdmiException - If the method fails.

      • delete

        void delete()
     throws EdmiException
        Delete an existing EDMdatabase, i.e. delete all data belonging to the actual database. After this function is performed, the actual database is non existing, hence the data in a deleted EDMdatabase cannot be recovered. Only closed databases can be deleted.
        Throws:
        EdmiException - If the method fails.

      • exists

        boolean exists()
        throws EdmiException
        Check database existance
        Returns:
        true if the database exists
        Throws:
        EdmiException - if the method fails.

      • getVersion

        int getVersion()
        throws EdmiException
        Get database version
        Returns:
        database version
        Throws:
        EdmiException - if the method fails.

      • getBlockSize

        int getBlockSize()
          throws EdmiException
        Get database block size.
        Returns:
        database block size
        Throws:
        EdmiException - if the method fails.

      • getMaxModels

        int getMaxModels()
          throws EdmiException
        Get database max models.
        Returns:
        database max models size
        Throws:
        EdmiException - if the method fails.