| // RecordedInstanceTreeNodeContentProvider.java |
| package org.eclipse.stem.ui.views.explorer; |
| |
| /******************************************************************************* |
| * Copyright (c) 2008 IBM Corporation and others. |
| * 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| import org.eclipse.jface.viewers.ITreeContentProvider; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.ui.navigator.CommonNavigator; |
| |
| /** |
| * This class is a {@link ITreeContentProvider} for {@link |
| * RecordedInstanceTreeNode}s which appear in the {@link CommonNavigator} |
| * framework that is used to explore STEM Projects. |
| * |
| * @see RecordedInstanceTreeNodeLabelProvider |
| */ |
| @SuppressWarnings("unused") |
| public abstract class RecordedInstanceTreeNodeContentProvider implements |
| ITreeContentProvider { |
| |
| /** |
| * @see |
| * org.eclipse.jface.viewers.ITreeContentProvider#getChildren(java.lang. |
| * Object) |
| */ |
| abstract public Object[] getChildren(Object parentElement); |
| |
| /** |
| * @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang. |
| * Object) |
| */ |
| public Object getParent(Object element) { |
| Object retValue = null; |
| if (element instanceof RecordedInstanceTreeNode) { |
| retValue = ((RecordedInstanceTreeNode) element).getParent(); |
| } // if IdentifiableInstanceTreeNode |
| return retValue; |
| } |
| |
| /** |
| * @see |
| * org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang. |
| * Object) |
| */ |
| abstract public boolean hasChildren(Object element); |
| |
| /** |
| * @see |
| * org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java |
| * .lang.Object) |
| */ |
| public Object[] getElements(Object inputElement) { |
| return getChildren(inputElement); |
| } |
| |
| /** |
| * @see org.eclipse.jface.viewers.IContentProvider#dispose() |
| */ |
| public void dispose() { |
| // Nothing |
| } |
| |
| /** |
| * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse. |
| * jface.viewers.Viewer, java.lang.Object, java.lang.Object) |
| */ |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| // Nothing |
| } |
| |
| } // RecordedInstanceTreeNodeContentProvider |