Fix potential class cast exception during selection handling

[taxeditor.git] / eu.etaxonomy.taxeditor.editor / src / main / java / eu / etaxonomy / taxeditor / editor / view / derivate / DerivateView.java

diff --git a/eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/derivate/DerivateView.java b/eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/derivate/DerivateView.java
index 22206310d7c5788f9217295f2f085f60697b45b3..53ee861dc95852efb56cf065c7778eda20685419 100644 (file)
--- a/eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/derivate/DerivateView.java
+++ b/eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/derivate/DerivateView.java
@@ -31,7 +31,6 @@ import org.eclipse.jface.viewers.AbstractTreeViewer;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.ISelectionChangedListener;
 import org.eclipse.jface.viewers.IStructuredSelection;
-import org.eclipse.jface.viewers.SelectionChangedEvent;
 import org.eclipse.jface.viewers.StructuredSelection;
 import org.eclipse.jface.viewers.TreeNode;
 import org.eclipse.jface.viewers.TreeSelection;
@@ -43,7 +42,6 @@ import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Tree;
-import org.eclipse.ui.IEditorPart;
 import org.eclipse.ui.IMemento;
 
 import eu.etaxonomy.cdm.api.conversation.ConversationHolder;
@@ -61,6 +59,7 @@ import eu.etaxonomy.taxeditor.editor.EditorUtil;
 import eu.etaxonomy.taxeditor.editor.MultiPageTaxonEditor;
 import eu.etaxonomy.taxeditor.editor.l10n.Messages;
 import eu.etaxonomy.taxeditor.editor.view.derivate.searchFilter.DerivateSearchCompositeController;
+import eu.etaxonomy.taxeditor.model.AbstractUtility;
 import eu.etaxonomy.taxeditor.model.IContextListener;
 import eu.etaxonomy.taxeditor.model.IDirtyMarkable;
 import eu.etaxonomy.taxeditor.model.IPartContentHasDetails;
@@ -215,13 +214,8 @@ public class DerivateView implements IPartContentHasFactualData, IConversationEn
         viewer.setAutoExpandLevel(AbstractTreeViewer.ALL_LEVELS);
         viewer.getTree().setEnabled(CdmStore.isActive());
 
-        selectionChangedListener = new ISelectionChangedListener() {
-            @Override
-            public void selectionChanged(SelectionChangedEvent event) {
-                IStructuredSelection isel = (IStructuredSelection) event.getSelection();
-                selService.setSelection((isel.size() == 1 ? isel.getFirstElement() : isel.toArray()));
-            }
-        };
+        //propagate selection
+        selectionChangedListener = (event -> selService.setSelection(AbstractUtility.getElementsFromSelectionChangedEvent(event)));
         viewer.addSelectionChangedListener(selectionChangedListener);
 
         //create context menu