| /* |
| * Copyright (C) 2005 db4objects Inc. http://www.db4o.com |
| * |
| * 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 |
| */ |
| package org.eclipse.jface.databinding.validators; |
| |
| import org.eclipse.jface.databinding.validator.IValidator; |
| import org.eclipse.jface.internal.databinding.BindingMessages; |
| |
| |
| /** |
| * DoubleValidator. Verify data input for Doubles |
| * |
| * @author djo |
| */ |
| public class String2DoubleValidator implements IValidator { |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.databinding.validator.IValidator#isPartiallyValid(java.lang.Object) |
| */ |
| public String isPartiallyValid(Object fragment) { |
| if (((String)fragment).matches("\\-?[0-9]*\\.?[0-9]*([0-9]+[e|E]\\-?([0-9]+\\.)?[0-9]*)?")) //$NON-NLS-1$ |
| return null; |
| |
| return getHint(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.ICellEditorValidator#isValid(java.lang.Object) |
| */ |
| public String isValid(Object value) { |
| try { |
| Double.parseDouble((String)value); |
| return null; |
| } catch (Throwable t) { |
| return getHint(); |
| } |
| } |
| |
| private String getHint() { |
| return BindingMessages.getString("Validate_Like") + //$NON-NLS-1$ |
| BindingMessages.getString("Validate_Number_Examples") //$NON-NLS-1$ |
| + Double.MIN_VALUE + |
| ", " + Double.MAX_VALUE + "."; //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| |
| } |
