package com.atlassian.activeobjects.backup.types;
   
   import com.atlassian.activeobjects.backup.AbstractTestActiveObjectsBackup;
   import net.java.ao.EntityManager;
   import net.java.ao.RawEntity;
   
   abstract class AbstractTestTypeBackup extends AbstractTestActiveObjectsBackup {
       final void testBackupType(BackupType<?> bt) throws Exception {
           entityManager.migrate(bt.getEntityClass());
  
          bt.createData(entityManager);
          entityManager.flushAll();
          bt.checkData(entityManager);
  
          final String backup = save();
          logger.debug("\n" + backup);
  
          entityManager.migrate(); // emptying the DB
          entityManager.flushAll();
  
          restore(backup);
          restore(backup);
  
          entityManager.migrate(bt.getEntityClass());
          bt.checkData(entityManager);
      }
  
      static interface BackupType<K> {
          Class<? extends RawEntity<K>> getEntityClass();
  
          void createData(EntityManager em) throws Exception;
  
          void checkData(EntityManager em) throws Exception;
      }
  }