1 /** 2 * This file Copyright (c) 2012-2016 Magnolia International 3 * Ltd. (http://www.magnolia-cms.com). All rights reserved. 4 * 5 * 6 * This file is dual-licensed under both the Magnolia 7 * Network Agreement and the GNU General Public License. 8 * You may elect to use one or the other of these licenses. 9 * 10 * This file is distributed in the hope that it will be 11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the 12 * implied warranty of MERCHANTABILITY or FITNESS FOR A 13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT. 14 * Redistribution, except as permitted by whichever of the GPL 15 * or MNA you select, is prohibited. 16 * 17 * 1. For the GPL license (GPL), you can redistribute and/or 18 * modify this file under the terms of the GNU General 19 * Public License, Version 3, as published by the Free Software 20 * Foundation. You should have received a copy of the GNU 21 * General Public License, Version 3 along with this program; 22 * if not, write to the Free Software Foundation, Inc., 51 23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 24 * 25 * 2. For the Magnolia Network Agreement (MNA), this file 26 * and the accompanying materials are made available under the 27 * terms of the MNA which accompanies this distribution, and 28 * is available at http://www.magnolia-cms.com/mna.html 29 * 30 * Any modifications to this file must keep this entire header 31 * intact. 32 * 33 */ 34 package info.magnolia.ui.vaadin.integration.jcr; 35 36 import com.vaadin.data.util.ObjectProperty; 37 import com.vaadin.data.util.converter.Converter.ConversionException; 38 39 /** 40 * Basic implementation of {@link com.vaadin.data.Property}. 41 * 42 * @param <T> generic type of the value. 43 */ 44 public class DefaultProperty<T> extends ObjectProperty<T> { 45 46 @SuppressWarnings("unchecked") 47 // the cast is safe, because an object of type T has class Class<T> 48 public DefaultProperty(T value) { 49 this((value != null?(Class<T>) value.getClass():null), value); 50 } 51 52 /** 53 * Creates a typed DefaultProperty based on the properties name, it's type value and the actual class type. 54 * Value can be null. 55 */ 56 public DefaultProperty(Class<T> type, T value) { 57 super(value, type); 58 } 59 60 @Override 61 public void setValue(T newValue) throws ReadOnlyException, ConversionException { 62 if (isReadOnly()) { 63 throw new ReadOnlyException("Property is readonly: Can not update value: " + String.valueOf(newValue)); 64 } 65 if (newValue != null && !getType().isAssignableFrom(newValue.getClass())) { 66 throw new ConversionException("Cannot convert " + newValue.getClass() + " to " + getType()); 67 } 68 super.setValue(newValue); 69 } 70 71 @Override 72 public String toString() { 73 T value = getValue(); 74 return value != null ? value.toString() : ""; 75 } 76 }