1 /*******************************************************************************
\r
2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
\r
3 * in Industry THTH ry.
\r
4 * All rights reserved. This program and the accompanying materials
\r
5 * are made available under the terms of the Eclipse Public License v1.0
\r
6 * which accompanies this distribution, and is available at
\r
7 * http://www.eclipse.org/legal/epl-v10.html
\r
10 * VTT Technical Research Centre of Finland - initial API and implementation
\r
11 *******************************************************************************/
\r
12 package org.simantics.layer0.utils.triggers;
\r
14 import org.simantics.db.request.Read;
\r
18 * A trigger creates a graph modification, when some condition in the
\r
19 * graph is satisfied. It may assume that the graph is not modified
\r
20 * between returning the Modification and performing it.
\r
21 * Thus Modification that is executed should always be (re)queried in
\r
22 * write transaction.
\r
24 public interface ITrigger extends Read<IModification> {
\r