Package org.eclipse.emf.cdo.server.db

Interface IMetaDataManager

public interface IMetaDataManager
Manages the elements of the meta model level of a CDO repository.
Since:
2.0
Author:
Eike Stepper
No Implement
This interface is not intended to be implemented by clients.
No Extend
This interface is not intended to be extended by clients.

  • Method Details

    • getMetaID

      CDOID getMetaID(EModelElement modelElement, long commitTime)
      Returns the meta ID of the given EModelElement. getMetaID(getMetaInstance(x)) yields x
      Parameters:
      modelElement - the element
      Returns:
      the corresponding ID
      Since:
      4.0

    • getMetaInstance

      EModelElement getMetaInstance(CDOID id)
      Returns the EModelElement referred to by the given ID. getMetaInstance(getMetaID(m)) yields m
      Since:
      4.0

    • loadPackageUnit

      EPackage[] loadPackageUnit(Connection connection, InternalCDOPackageUnit packageUnit)
      Loads a package unit from the database.
      Parameters:
      connection - the DB connection to read from.
      packageUnit - the package unit to load.
      Returns:
      the loaded package unit.
      Since:
      2.0

    • clearMetaIDMappings

      void clearMetaIDMappings()
      Since:
      4.0

    • readPackageUnits

      Collection<InternalCDOPackageUnit> readPackageUnits(Connection connection)
      Reads information about package units present in the database.
      Parameters:
      connection - the DB connection to read from.
      Returns:
      a collection of package unit information records which can be passed to loadPackageUnit(Connection, InternalCDOPackageUnit) in order to read the EPackage.
      Since:
      2.0

    • writePackageUnits

      void writePackageUnits(Connection connection, InternalCDOPackageUnit[] packageUnits, org.eclipse.net4j.util.om.monitor.OMMonitor monitor)
      Write package units to the database.
      Parameters:
      connection - the DB connection to write to.
      packageUnits - the package units to write.
      monitor - the monitor to indicate progress.
      Since:
      2.0

    • rawExport

      void rawExport(Connection connection, CDODataOutput out, long fromCommitTime, long toCommitTime) throws IOException
      Throws:
      IOException
      Since:
      3.0

    • rawImport

      Collection<InternalCDOPackageUnit> rawImport(Connection connection, CDODataInput in, long fromCommitTime, long toCommitTime, org.eclipse.net4j.util.om.monitor.OMMonitor monitor) throws IOException
      Throws:
      IOException
      Since:
      4.0