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 Detail

      • 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​(java.sql.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

        java.util.Collection<InternalCDOPackageUnit> readPackageUnits​(java.sql.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​(java.sql.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​(java.sql.Connection connection,
               CDODataOutput out,
               long fromCommitTime,
               long toCommitTime)
        throws java.io.IOException
        Throws:
        java.io.IOException
        Since:
        3.0

      • rawImport

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