| /* |
| * 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.converterfunctions; |
| |
| import org.eclipse.jface.databinding.converterfunction.ConversionFunctionRegistry; |
| import org.eclipse.jface.databinding.converterfunction.IConversionFunction; |
| |
| |
| /** |
| * ConvertObject2String. This is the fall-back converter. If the property type |
| * is abstract, we might not have a converter registered for the property type. |
| * In that case, this converter will be used, which will try to find a |
| * converter that will convert the source object's actual (concrete) type |
| * to a String and use that if it finds one. |
| * <p> |
| * Note that there is no way to reverse this process. |
| */ |
| public class ConvertObject2String implements IConversionFunction { |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.binding.converter.IConverter#convert(java.lang.Object) |
| */ |
| public Object convert(Object source) { |
| if (source == null) |
| return ""; //$NON-NLS-1$ |
| |
| IConversionFunction converter = ConversionFunctionRegistry.get(source.getClass(), String.class); |
| if (converter != null) { |
| return converter.convert(source); |
| } |
| |
| throw new IllegalArgumentException("Unable to find a converter for " + source.getClass().getName() + " to String"); //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| |
| } |
