bundles/org.simantics.layer0.utils/src/org/simantics/layer0/utils/binaryPredicates/IBinaryPredicate.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.layer0.utils.binaryPredicates;\r
  13 \r
  14 import java.util.Collection;\r
  15 \r
  16 import org.simantics.db.Resource;\r
  17 import org.simantics.db.ReadGraph;\r
  18 import org.simantics.db.WriteGraph;\r
  19 import org.simantics.db.exception.DatabaseException;\r
  20 import org.simantics.utils.datastructures.Pair;\r
  21 \r
  22 public interface IBinaryPredicate {\r
  23 \r
  24         boolean supportsGetObjects();\r
  25         boolean supportsGetSubjects();\r
  26         boolean supportsGetStatements();        \r
  27         \r
  28         Collection<Resource> getObjects(ReadGraph g, Resource subject) throws DatabaseException;\r
  29         Collection<Resource> getSubjects(ReadGraph g, Resource object) throws DatabaseException;\r
  30         Collection<Pair<Resource,Resource>> getStatements(ReadGraph g) throws DatabaseException;\r
  31         boolean has(ReadGraph g, Resource subject, Resource object) throws DatabaseException;\r
  32 \r
  33         boolean supportsAdditions();\r
  34         boolean supportsRemovals();\r
  35         \r
  36         void add(WriteGraph g, Resource subject, Resource object) throws DatabaseException;\r
  37         void remove(WriteGraph g, Resource subject, Resource object) throws DatabaseException;\r
  38         \r
  39         IBinaryPredicate inverse(ReadGraph g) throws DatabaseException;\r
  40         \r
  41         String toString(ReadGraph g) throws DatabaseException;\r
  42         \r
  43 }\r