| /* |
| * Copyright 2010 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.gwt.editor.client; |
| |
| /** |
| * Allows traversal of an AutoBean object graph. |
| */ |
| public class AutoBeanVisitor { |
| /** |
| * Reserved for future expansion to avoid API breaks. |
| */ |
| public interface Context { |
| } |
| |
| /** |
| * Allows properties to be reset. |
| */ |
| public interface PropertyContext { |
| /** |
| * Indicates if the {@link #set} method will succeed. |
| */ |
| boolean canSet(); |
| |
| /** |
| * If the reference property is a collection, returns the collection's |
| * element type. |
| */ |
| Class<?> getElementType(); |
| |
| /** |
| * Returns the expected type of the property. |
| */ |
| Class<?> getType(); |
| |
| void set(Object value); |
| } |
| |
| public void endVisit(AutoBean<?> bean, Context ctx) { |
| } |
| |
| public void endVisitReferenceProperty(String propertyName, AutoBean<?> value, |
| PropertyContext ctx) { |
| } |
| |
| public void endVisitValueProperty(String propertyName, Object value, |
| PropertyContext ctx) { |
| } |
| |
| public boolean visit(AutoBean<?> bean, Context ctx) { |
| return true; |
| } |
| |
| /** |
| * Called every time, but {@link #visit(AutoBean, Context)} will be called for |
| * the value only the first time it is encountered. |
| */ |
| public boolean visitReferenceProperty(String propertyName, AutoBean<?> value, |
| PropertyContext ctx) { |
| return true; |
| } |
| |
| public boolean visitValueProperty(String propertyName, Object value, |
| PropertyContext ctx) { |
| return true; |
| } |
| } |