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[simantics/platform.git] / bundles / org.simantics.db.layer0 / src / org / simantics / db / layer0 / adapter / SubgraphExtent.java
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
8  *\r
9  * Contributors:\r
10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
11  *******************************************************************************/\r
12 package org.simantics.db.layer0.adapter;\r
13 \r
14 import org.simantics.db.AsyncReadGraph;\r
15 import org.simantics.db.Resource;\r
16 import org.simantics.db.Statement;\r
17 import org.simantics.db.procedure.AsyncProcedure;\r
18 \r
19 public interface SubgraphExtent {\r
20         \r
21         public static enum ExtentStatus {\r
22                 INTERNAL, PENDING, EXTERNAL, EXCLUDED\r
23         }\r
24 \r
25         interface Callback {\r
26                 void statement(Statement statement, boolean accept);\r
27         }\r
28 \r
29         interface Classifier {\r
30                 void classify(AsyncReadGraph graph, Statement statement, ExtentStatus objectExtent, Callback callback);\r
31         }\r
32         \r
33         void accept(AsyncReadGraph graph, Resource resource, AsyncProcedure<Classifier> procedure, Callback callback);\r
34         \r
35 }\r