1 /*******************************************************************************
2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
4 * All rights reserved. This program and the accompanying materials
5 * are made available under the terms of the Eclipse Public License v1.0
6 * which accompanies this distribution, and is available at
7 * http://www.eclipse.org/legal/epl-v10.html
10 * VTT Technical Research Centre of Finland - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.db.impl.query;
14 import org.simantics.db.exception.DatabaseException;
15 import org.simantics.db.impl.graph.ReadGraphImpl;
18 abstract public class SyncIntProcedure implements IntProcedure, ThreadRunnable {
22 // final private AtomicInteger barrier = new AtomicInteger(1);
24 public SyncIntProcedure() {
27 final protected void inc() {
28 // System.err.println("inc " + barrier.get());
30 // barrier.incrementAndGet();
33 final protected void dec(ReadGraphImpl graph) throws DatabaseException {
34 // System.err.println("dec " + barrier.get());
35 if((--barrier) == 0) {
41 public void exception(ReadGraphImpl graph, Throwable t) throws DatabaseException {
42 throw new Error("Errors are not supported,", t);