| /******************************************************************************* |
| * Copyright (c) 2015 EclipseSource Muenchen GmbH 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: |
| * Philip Langer - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.emf.compare.rcp.ui.internal.contentmergeviewer; |
| |
| import org.eclipse.emf.common.command.Command; |
| import org.eclipse.emf.compare.Diff; |
| import org.eclipse.emf.compare.rcp.ui.mergeviewer.IMergeViewer.MergeViewerSide; |
| |
| /** |
| * A strategy for updating the model with changes made from within a content merge viewer. |
| * |
| * @author Philip Langer <planger@eclipsesource.com> |
| */ |
| public interface IModelUpdateStrategy { |
| |
| /** |
| * Specifies whether the value in the model can to be updated on the given {@code side}. |
| * |
| * @param diff |
| * The diff acting as context of the potential model update. |
| * @param side |
| * The side to check. |
| * @return <code>true</code> if the value can be updated, <code>false</code> otherwise. |
| */ |
| public boolean canUpdate(Diff diff, MergeViewerSide side); |
| |
| /** |
| * Returns a command for updating the underlying model with the given {@code newValue} on the given |
| * {@code side}. |
| * |
| * @param diff |
| * The diff acting as context of the model update. |
| * @param newValue |
| * The new value to be set. |
| * @param side |
| * The side on which the update is to be performed. |
| * @return A command to perform the model update. |
| */ |
| public Command getModelUpdateCommand(Diff diff, Object newValue, MergeViewerSide side); |
| |
| } |
