Bug 166763 [Undo] API request: org.eclipse.ui.internal.ide.undo.ResourceDescription
I20061129-1340 To support undo for file operations in the Package Explorer, we need the functionality of org.eclipse.ui.internal.ide.undo.ResourceDescription. Could this class be promoted to API? I've copied the package for now (to avoid referencing internal code). We need more low-level operations than what's currently in org.eclipse.ui.ide.undo, because we must let jdt.core do the actual modifications and because our actions are refactorings with participants, which must adhere to the ltk.core.refactoring undo story.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/ide/undo/WorkspaceUndoUtil.java
* @param monitor
	 *            the progress monitor used to show progress
	 * @param uiInfo
	 *            the IAdaptable (or <code>null</code>) provided by the
	 *            caller in order to supply UI information for prompting the
	 *            user if necessary. When this parameter is not
	 *            <code>null</code>, it contains an adapter for the
	 *            org.eclipse.swt.widgets.Shell.class
	 * @return an array of resources that were created
	 * @throws CoreException
	 *             propagates any CoreExceptions thrown from the resources API
	 */
	static IResource[] recreate(ResourceDescription[] resourcesToRecreate,
			IProgressMonitor monitor, IAdaptable uiInfo) throws CoreException {
		final List exceptions = new ArrayList();
		IResource[] resourcesToReturn = new IResource[resourcesToRecreate.length];
		monitor.beginTask("", resourcesToRecreate.length); 
		monitor
				.setTaskName(UndoMessages.AbstractResourcesOperation_CreateResourcesProgress);
		try {
			for (int i = 0; i < resourcesToRecreate.length; ++i) {
				if (monitor.isCanceled()) {
					throw new OperationCanceledException();
				}
				try {
					resourcesToReturn[i] = resourcesToRecreate[i]
							.createResource(new SubProgressMonitor(monitor, 1));
				} catch (CoreException e) {
					exceptions.add(e);
				}