]> gerrit.simantics Code Review - simantics/platform.git/blob - bundles/org.simantics.db.impl/src/org/simantics/db/impl/query/SyncIntProcedure.java
Fixed multiple issues causing dangling references to discarded queries
[simantics/platform.git] / bundles / org.simantics.db.impl / src / org / simantics / db / impl / query / SyncIntProcedure.java
1 /*******************************************************************************
2  * Copyright (c) 2007, 2018 Association for Decentralized Information Management
3  * in Industry THTH ry.
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
8  *
9  * Contributors:
10  *     VTT Technical Research Centre of Finland - initial API and implementation
11  *******************************************************************************/
12 package org.simantics.db.impl.query;
13
14 import org.simantics.db.exception.DatabaseException;
15 import org.simantics.db.impl.graph.ReadGraphImpl;
16
17 public abstract class SyncIntProcedure implements IntProcedure, ThreadRunnable {
18
19         int barrier = 1;
20
21 //    final private AtomicInteger barrier = new AtomicInteger(1);
22
23     public SyncIntProcedure() {
24     }
25
26     protected final void inc() {
27 //        System.err.println("inc " + barrier.get());
28         ++barrier;
29 //        barrier.incrementAndGet();
30     }
31
32     protected final void dec(ReadGraphImpl graph) throws DatabaseException {
33 //        System.err.println("dec " + barrier.get());
34         if((--barrier) == 0) {
35             run(graph);
36         }
37     }
38
39     @Override
40     public void exception(ReadGraphImpl graph, Throwable t) throws DatabaseException {
41         throw new Error("Errors are not supported,", t);
42     }
43
44 }