| /* |
| * 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.impl; |
| |
| import com.google.gwt.editor.client.Editor; |
| import com.google.gwt.editor.client.EditorError; |
| import com.google.gwt.editor.client.SimpleBeanEditorDriver; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * A base implementation class for generated SimpleBeanEditorDriver |
| * implementations. |
| * |
| * @param <T> the type being edited |
| * @param <E> the Editor type |
| */ |
| public abstract class AbstractSimpleBeanEditorDriver<T, E extends Editor<T>> |
| implements SimpleBeanEditorDriver<T, E> { |
| |
| private SimpleBeanEditorDelegate<T, E> delegate; |
| private DelegateMap delegateMap = new DelegateMap(DelegateMap.IDENTITY); |
| private E editor; |
| private List<EditorError> errors; |
| private T object; |
| |
| public void edit(T object) { |
| checkEditor(); |
| this.object = object; |
| delegate = createDelegate(); |
| delegate.initialize("", object, editor, delegateMap); |
| delegateMap.put(object, delegate); |
| } |
| |
| public T flush() { |
| checkDelegate(); |
| errors = new ArrayList<EditorError>(); |
| delegate.flush(errors); |
| return object; |
| } |
| |
| public List<EditorError> getErrors() { |
| return errors; |
| } |
| |
| public boolean hasErrors() { |
| return !errors.isEmpty(); |
| } |
| |
| public void initialize(E editor) { |
| this.editor = editor; |
| } |
| |
| protected abstract SimpleBeanEditorDelegate<T, E> createDelegate(); |
| |
| /** |
| * Visible for testing. |
| */ |
| DelegateMap getDelegateMap() { |
| return delegateMap; |
| } |
| |
| private void checkDelegate() { |
| if (delegate == null) { |
| throw new IllegalStateException("Must call edit() first"); |
| } |
| } |
| |
| private void checkEditor() { |
| if (editor == null) { |
| throw new IllegalStateException("Must call initialize() first"); |
| } |
| } |
| |
| } |