X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.modeling%2Fsrc%2Forg%2Fsimantics%2Fmodeling%2Fadapters%2FTerminalRemover.java;fp=bundles%2Forg.simantics.modeling%2Fsrc%2Forg%2Fsimantics%2Fmodeling%2Fadapters%2FTerminalRemover.java;h=6af06b15c3fb17490b42fbb9f7726bececcb3c01;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.modeling/src/org/simantics/modeling/adapters/TerminalRemover.java b/bundles/org.simantics.modeling/src/org/simantics/modeling/adapters/TerminalRemover.java
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+/*******************************************************************************
+ * Copyright (c) 2012 Association for Decentralized Information Management in
+ * Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.modeling.adapters;
+
+import java.util.Map;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.diagram.stubs.DiagramResource;
+import org.simantics.layer0.Layer0;
+import org.simantics.modeling.ModelingResources;
+import org.simantics.modeling.adapters.Removers.ValidationResult;
+
+/**
+ * A remover implementation for symbol terminals.
+ * 
+ * <p>
+ * Contrary to ConnectionRelationRemover, this remover will only remove the
+ * diagram side connection relations in addition to removing the terminal
+ * itself. Deleting a terminal from the symbol does not imply that the whole
+ * connection point needs to be removed from the component type configuration,
+ * only that the graphical representation of the connection point is removed.
+ * 
+ * @author Tuukka Lehtonen
+ * @see ConnectionRelationRemover
+ */
+public class TerminalRemover extends ElementRemover {
+
+    public TerminalRemover(Resource terminal) {
+        super(terminal);
+    }
+
+    @Override
+    public String canRemove(ReadGraph graph, Map<Object, Object> aux) throws DatabaseException {
+        DiagramResource DIA = DiagramResource.getInstance(graph);
+        ModelingResources MOD = ModelingResources.getInstance(graph);
+
+        for (Resource diagramConnectionRelation : graph.getObjects(resource, DIA.HasConnectionPoint)) {
+            for (Resource connectionRelation : graph.getObjects(diagramConnectionRelation, MOD.DiagramConnectionRelationToConnectionRelation)) {
+                ValidationResult result = Removers.validateConnectionRelationRemoval(graph, connectionRelation, diagramConnectionRelation);
+                if (result.inUse())
+                    return Removers.formatError(graph, result);
+            }
+        }
+
+        return null;
+    }
+
+    @Override
+    public void remove(WriteGraph graph) throws DatabaseException {
+        Layer0 L0 = Layer0.getInstance(graph);
+        DiagramResource DIA = DiagramResource.getInstance(graph);
+
+        for (Resource diagramConnectionPoint : graph.getObjects(resource, DIA.HasConnectionPoint)) {
+            Resource diagramConnectionPointInverse = graph.getPossibleObject(diagramConnectionPoint, L0.InverseOf);
+            graph.deny(diagramConnectionPoint);
+            if (diagramConnectionPointInverse != null)
+                graph.deny(diagramConnectionPointInverse);
+        }
+
+        removeElement(graph);
+    }
+
+}