bundles/org.simantics.layer0.utils/src/org/simantics/layer0/utils/predicates/IUnaryPredicate.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.layer0.utils.predicates;
  13
  14 import java.util.Collection;
  15
  16 import org.simantics.db.Resource;
  17 import org.simantics.db.ReadGraph;
  18 import org.simantics.db.WriteGraph;
  19 import org.simantics.db.exception.DatabaseException;
  20
  21 public interface IUnaryPredicate {
  22
  23         boolean supportsUnboundedQuery();
  24
  25         Collection<Resource> getResources(ReadGraph g) throws DatabaseException;
  26         boolean has(ReadGraph g, Resource resource) throws DatabaseException;
  27
  28         boolean supportsAddition();
  29         boolean supportsRemoval();
  30
  31         void add(WriteGraph g, Resource r) throws DatabaseException;
  32         void remove(WriteGraph g, Resource r) throws DatabaseException;
  33
  34 }