| /* |
| * Copyright (C) 2005, 2006 db4objects Inc. (http://www.db4o.com) 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: |
| * db4objects - Initial API and implementation |
| * Boris Bokowski (IBM Corporation) - bug 118429 |
| */ |
| package org.eclipse.core.internal.databinding.validation; |
| |
| import org.eclipse.core.databinding.validation.IValidator; |
| import org.eclipse.core.databinding.validation.ValidationStatus; |
| import org.eclipse.core.internal.databinding.BindingMessages; |
| import org.eclipse.core.runtime.IStatus; |
| |
| /** |
| * ReadOnlyValidator. A validator that can be used as a partial validator for read-only fields. |
| */ |
| public class ReadOnlyValidator implements IValidator { |
| |
| private static ReadOnlyValidator singleton = null; |
| |
| /** |
| * Returns the ReadOnlyValidator |
| * |
| * @return the ReadOnlyValidator |
| */ |
| public static ReadOnlyValidator getDefault() { |
| if (singleton == null) { |
| singleton = new ReadOnlyValidator(); |
| } |
| return singleton; |
| } |
| |
| public IStatus validate(Object value) { |
| // No changes are allowed |
| return ValidationStatus.error(BindingMessages |
| .getString("Validate_NoChangeAllowedHelp")); //$NON-NLS-1$ |
| } |
| |
| } |