private void  InitBlock(TestTransactionRollback enclosingInstance)
			{
				this.enclosingInstance = enclosingInstance;
			}
			public DeleteLastCommitPolicy(TestTransactionRollback enclosingInstance)
			{
				InitBlock(enclosingInstance);
			}
			public KeepAllDeletionPolicy(TestTransactionRollback enclosingInstance)
			{
				InitBlock(enclosingInstance);
			}
			public RollbackDeletionPolicy(TestTransactionRollback enclosingInstance, int rollbackPoint)
			{
				InitBlock(enclosingInstance);
				this.rollbackPoint = rollbackPoint;
			}