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/**
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* Copyright (C) 2009 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.editor.definedterm.e4;
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import javax.annotation.PostConstruct;
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import javax.annotation.PreDestroy;
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import javax.inject.Inject;
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import org.eclipse.core.runtime.IProgressMonitor;
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import org.eclipse.e4.core.contexts.ContextInjectionFactory;
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import org.eclipse.e4.core.contexts.IEclipseContext;
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import org.eclipse.e4.ui.di.Focus;
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import org.eclipse.e4.ui.di.Persist;
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import org.eclipse.e4.ui.model.application.ui.MDirtyable;
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import org.eclipse.e4.ui.model.application.ui.basic.MPart;
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import org.eclipse.e4.ui.services.EMenuService;
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import org.eclipse.e4.ui.workbench.modeling.EPartService;
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import org.eclipse.e4.ui.workbench.modeling.ESelectionService;
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import org.eclipse.jface.viewers.ISelectionChangedListener;
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import org.eclipse.jface.viewers.StructuredSelection;
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import org.eclipse.jface.viewers.TreeViewer;
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import org.eclipse.jface.viewers.Viewer;
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import org.eclipse.jface.viewers.ViewerSorter;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.dnd.DND;
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import org.eclipse.swt.dnd.Transfer;
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import org.eclipse.swt.layout.FillLayout;
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import org.eclipse.swt.widgets.Composite;
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import org.eclipse.swt.widgets.Tree;
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import org.eclipse.ui.IMemento;
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import eu.etaxonomy.cdm.api.conversation.ConversationHolder;
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import eu.etaxonomy.cdm.api.conversation.IConversationEnabled;
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import eu.etaxonomy.cdm.model.common.CdmBase;
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import eu.etaxonomy.cdm.model.common.OrderedTermBase;
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import eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap;
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import eu.etaxonomy.taxeditor.editor.definedterm.TermContentProvider;
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import eu.etaxonomy.taxeditor.editor.definedterm.TermLabelProvider;
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import eu.etaxonomy.taxeditor.editor.definedterm.TermTransfer;
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import eu.etaxonomy.taxeditor.editor.definedterm.input.TermEditorInput;
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import eu.etaxonomy.taxeditor.model.AbstractUtility;
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import eu.etaxonomy.taxeditor.model.IContextListener;
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import eu.etaxonomy.taxeditor.model.IDirtyMarkable;
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import eu.etaxonomy.taxeditor.model.IPartContentHasDetails;
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import eu.etaxonomy.taxeditor.model.IPartContentHasSupplementalData;
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import eu.etaxonomy.taxeditor.operation.IPostOperationEnabled;
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import eu.etaxonomy.taxeditor.store.CdmStore;
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import eu.etaxonomy.taxeditor.ui.element.LayoutConstants;
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import eu.etaxonomy.taxeditor.workbench.part.IE4SavablePart;
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/**
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*
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* @author pplitzner
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* @since Aug 22, 2017
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*
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*/
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public class DefinedTermEditorE4 implements IConversationEnabled, IDirtyMarkable, IPostOperationEnabled,
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IPartContentHasDetails, IPartContentHasSupplementalData, IE4SavablePart, IContextListener {
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public static final String OPEN_COMMAND_ID = "eu.etaxonomy.taxeditor.store.openDefinedTermEditor";
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protected TreeViewer viewer;
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protected ConversationHolder conversation;
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@Inject
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private ESelectionService selService;
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@Inject
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private MDirtyable dirty;
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private ISelectionChangedListener selectionChangedListener;
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private final int dndOperations = DND.DROP_COPY | DND.DROP_MOVE;
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private TermEditorInput input =null;
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@Inject
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private MPart thisPart;
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@Inject
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public DefinedTermEditorE4() {
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CdmStore.getContextManager().addContextListener(this);
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}
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@PostConstruct
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public void createPartControl(Composite parent, EMenuService menuService,
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IEclipseContext context) {
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if (CdmStore.isActive()){
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if(conversation == null){
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conversation = CdmStore.createConversation();
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}
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}
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else{
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return;
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}
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FillLayout layout = new FillLayout();
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layout.marginHeight = 0;
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layout.marginWidth = 0;
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layout.type = SWT.VERTICAL;
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parent.setLayout(layout);
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viewer = new TreeViewer(new Tree(parent, SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION));
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viewer.getControl().setLayoutData(LayoutConstants.FILL());
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viewer.setContentProvider(new TermContentProvider());
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viewer.setLabelProvider(new TermLabelProvider());
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viewer.setSorter(new DefinedTermSorter());
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Transfer[] transfers = new Transfer[] { TermTransfer.getInstance() };
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viewer.addDragSupport(dndOperations, transfers, new DefinedTermDragListenerE4(viewer));
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DefinedTermDropAdapterE4 dropListener = new DefinedTermDropAdapterE4(this);
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ContextInjectionFactory.inject(dropListener, context);
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viewer.addDropSupport(dndOperations, transfers, dropListener);
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//propagate selection
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selectionChangedListener = (event -> selService.setSelection(AbstractUtility.getElementsFromSelectionChangedEvent(event)));
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viewer.addSelectionChangedListener(selectionChangedListener);
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//create context menu
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menuService.registerContextMenu(viewer.getControl(), "eu.etaxonomy.taxeditor.store.popupmenu.termeditor");
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}
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@Override
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public boolean postOperation(CdmBase objectAffectedByOperation) {
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viewer.refresh();
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if(objectAffectedByOperation != null){
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viewer.setSelection(new StructuredSelection(objectAffectedByOperation));
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}
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setDirty(true);
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return true;
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}
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public void init(TermEditorInput input){
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this.input = input;
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input.initialiseVocabularies();
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viewer.setInput(input.getVocabularies());
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thisPart.setLabel(input.getName());
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}
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@Override
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@Persist
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public void save(IProgressMonitor monitor) {
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getConversationHolder().commit();
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input.merge();
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setDirty(false);
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input.initialiseVocabularies();
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viewer.refresh();
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}
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public boolean isDirty() {
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return dirty.isDirty();
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}
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@Focus
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public void setFocus() {
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if(viewer!=null && viewer.getControl() != null && !viewer.getControl().isDisposed()){
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viewer.getControl().setFocus();
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}
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if(conversation!=null){
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conversation.bind();
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}
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if(input!=null){
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input.bind();
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}
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}
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@Override
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public void update(CdmDataChangeMap changeEvents) {
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}
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@Override
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public ConversationHolder getConversationHolder() {
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return conversation;
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}
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@Override
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public void changed(Object element) {
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setDirty(true);
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viewer.update(element, null);
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}
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@Override
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public void forceDirty() {
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changed(null);
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}
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public void setDirty(boolean dirty) {
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this.dirty.setDirty(dirty);
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}
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@Override
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public boolean onComplete() {
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return false;
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}
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public TreeViewer getViewer() {
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return viewer;
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}
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private class DefinedTermSorter extends ViewerSorter {
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@Override
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public int compare(Viewer viewer, Object e1, Object e2) {
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// the comparison value in this method determines the
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// location <-> add term method used in the MoveDefinedTermOperation
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// execute call
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if(e1 instanceof OrderedTermBase && e2 instanceof OrderedTermBase) {
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OrderedTermBase otbe1 = (OrderedTermBase)e1;
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OrderedTermBase otbe2 = (OrderedTermBase)e2;
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if(otbe1.getOrderIndex() == otbe2.getOrderIndex()) {
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return 0;
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} else if (otbe1.getOrderIndex() < otbe2.getOrderIndex()){
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return -1;
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} else{
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return 1;
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}
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} else {
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return super.compare(viewer, e1, e2);
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}
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}
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}
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@PreDestroy
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public void dispose() {
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if(conversation!=null){
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conversation.unregisterForDataStoreChanges(this);
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conversation.close();
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}
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if(input!=null){
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input.dispose();
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}
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}
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public TermEditorInput getDefinedTermEditorInput() {
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return input;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void contextAboutToStop(IMemento memento, IProgressMonitor monitor) {
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void contextStop(IMemento memento, IProgressMonitor monitor) {
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//close view when workbench closes
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try{
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thisPart.getContext().get(EPartService.class).hidePart(thisPart);
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}
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catch(Exception e){
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//nothing
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}
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void contextStart(IMemento memento, IProgressMonitor monitor) {
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void contextRefresh(IProgressMonitor monitor) {
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void workbenchShutdown(IMemento memento, IProgressMonitor monitor) {
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}
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}
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