/*
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
*/
/*
* Created on Mar 15, 2007
*/
package com.bigdata.journal;
/**
* A marker interface for logic that can declare whether or not it is read-only.
*
* @author <a href="mailto:thompsonbry@users.sourceforge.net">Bryan Thompson</a>
*/
public interface IReadOnly {
/**
* Return <code>true</code> iff the procedure asserts that it will not
* write on the index. When <code>true</code>, the procedure may be run
* against a view of the index that is read-only or which allows concurrent
* processes to read on the same index object. When <code>false</code> the
* procedure will be run against a mutable view of the index (assuming that
* the procedure is executed in a context that has access to a mutable index
* view).
*/
public boolean isReadOnly();
}