+/*******************************************************************************\r
+ * Copyright (c) 2012 Association for Decentralized Information Management in\r
+ * Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ * VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.modeling.adapters;\r
+\r
+import java.util.Collection;\r
+import java.util.Collections;\r
+import java.util.Map;\r
+\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.WriteGraph;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.diagram.flag.FlagUtil;\r
+import org.simantics.diagram.stubs.DiagramResource;\r
+import org.simantics.modeling.adapters.Removers.ValidationResult;\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class FlagRemover extends ElementRemover {\r
+\r
+ public FlagRemover(Resource flag) {\r
+ super(flag);\r
+ }\r
+\r
+ @Override\r
+ public String canRemove(ReadGraph graph, Map<Object, Object> aux) throws DatabaseException {\r
+ boolean lifted = FlagUtil.isLifted(graph, resource);\r
+ if (lifted) {\r
+ ValidationResult result = Removers.validateFlagRemoval(graph, resource);\r
+ if (result.inUse()) {\r
+ return Removers.formatError(graph, result);\r
+ }\r
+ }\r
+ return null;\r
+ }\r
+\r
+ @Override\r
+ public void remove(WriteGraph graph) throws DatabaseException {\r
+ FlagUtil.disconnectFlag(graph, resource);\r
+\r
+ DiagramResource DIA = DiagramResource.getInstance(graph);\r
+ Collection<Resource> connectionRelations = Collections.emptySet();\r
+ if (FlagUtil.isLifted(graph, resource))\r
+ connectionRelations = graph.getObjects(resource, DIA.IsLiftedAs);\r
+\r
+ removeElement(graph);\r
+\r
+ if (!connectionRelations.isEmpty()) {\r
+ for (Resource connectionRelation : connectionRelations) {\r
+ new ConnectionRelationRemover(connectionRelation).remove(graph);\r
+ }\r
+ }\r
+ }\r
+\r
+}\r