/**
Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016. All rights reserved.
Contact:
SYSTAP, LLC DBA Blazegraph
2501 Calvert ST NW #106
Washington, DC 20008
licenses@blazegraph.com
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package com.bigdata.ha.msg;
import com.bigdata.journal.IRootBlockView;
/**
* Interface for a response requesting the opening and closing root blocks for
* an HA Log file.
*
* @author <a href="mailto:thompsonbry@users.sourceforge.net">Bryan Thompson</a>
*/
public interface IHALogRootBlocksResponse extends IHAMessage {
/**
* The root block that opens the HA Log file for the specified commit point.
*
* @return The root block and never <code>null</code>.
*/
IRootBlockView getOpenRootBlock();
/**
* The root block that closes the HA Log file for the specified commit
* point.
*
* @return The root block and never <code>null</code>.
*/
IRootBlockView getCloseRootBlock();
// /**
// * The #of write cache blocks that can be read from that file.
// */
// long getWriteBlockCount();
}