| /******************************************************************************* |
| * Copyright (c) 2000, 2004 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 |
| *******************************************************************************/ |
| package org.eclipse.jface.viewers; |
| |
| /** |
| * An interface for validating a cell editor's input. |
| * <p> |
| * This interface should be implemented by classes that wish to |
| * act as cell editor validators. |
| * </p> |
| */ |
| public interface ICellEditorValidator { |
| /** |
| * Returns a string indicating whether the given value is valid; |
| * <code>null</code> means valid, and non-<code>null</code> means |
| * invalid, with the result being the error message to display |
| * to the end user. |
| * <p> |
| * It is the responsibility of the implementor to fully format the |
| * message before returning it. |
| * </p> |
| * |
| * @param value the value to be validated |
| * @return the error message, or <code>null</code> indicating |
| * that the value is valid |
| */ |
| public String isValid(Object value); |
| } |
