/**
 * The PersistentSetPeer interface prescribes methods for data store
 * specific operations.
 */
package imaginary.persist;

import java.util.Hashtable;

public interface PersistentSetPeer {
    /**
     * Restores all objects of a given type from the data store.
     * @param set the set whose peer this class is
     * @param t the Transaction to use for the restore
     * @exception imaginary.persist.PersistenceException An error occurred
     * restoring the set
     */
   public abstract void restore(PersistentSet set, Transaction t)
   throws PersistenceException;
    
    /**
     * Restores the set based on the specified query criteria
     * @param set the set whose peer this class is
     * @param t the Transaction to use for the restore
     * @param h the query criteria
     * @exception imaginary.persist.PersistenceException An error occurred
     * restoring the set
     */
    public abstract void restore(PersistentSet set, Transaction t,
				 Hashtable h)
    throws PersistenceException;
}