]> gerrit.simantics Code Review - simantics/platform.git/blob - bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/adapter/SubgraphExtent.java
Fixed multiple issues causing dangling references to discarded queries
[simantics/platform.git] / bundles / org.simantics.db.layer0 / src / org / simantics / db / layer0 / adapter / SubgraphExtent.java
1 /*******************************************************************************
2  * Copyright (c) 2007, 2010 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.layer0.adapter;
13
14 import org.simantics.db.AsyncReadGraph;
15 import org.simantics.db.Resource;
16 import org.simantics.db.Statement;
17 import org.simantics.db.procedure.AsyncProcedure;
18
19 public interface SubgraphExtent {
20         
21         public static enum ExtentStatus {
22                 INTERNAL, PENDING, EXTERNAL, EXCLUDED
23         }
24
25         interface Callback {
26                 void statement(Statement statement, boolean accept);
27         }
28
29         interface Classifier {
30                 void classify(AsyncReadGraph graph, Statement statement, ExtentStatus objectExtent, Callback callback);
31         }
32         
33         void accept(AsyncReadGraph graph, Resource resource, AsyncProcedure<Classifier> procedure, Callback callback);
34         
35 }