1 /*
2 * Copyright 2004-2008 the Seasar Foundation and the Others.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
13 * either express or implied. See the License for the specific language
14 * governing permissions and limitations under the License.
15 */
16 package org.seasar.uruma.component.base;
17
18 import java.util.ArrayList;
19 import java.util.List;
20
21 import org.seasar.uruma.component.UIElement;
22 import org.seasar.uruma.component.UIElementContainer;
23 import org.seasar.uruma.component.UIElementVisitor;
24 import org.seasar.uruma.util.AssertionUtil;
25
26 /**
27 * {@link UIElementContainer} のための基底クラスです。<br />
28 *
29 * @author y-komori
30 */
31 public class AbstractUIElementContainer extends AbstractUIElement implements
32 UIElementContainer {
33 private List<UIElement> children = new ArrayList<UIElement>();
34
35 /*
36 * @see org.seasar.uruma.component.UIElementContainer#addChild(org.seasar.uruma.component.UIElement)
37 */
38 public void addChild(final UIElement child) {
39 AssertionUtil.assertNotNull("child", child);
40 this.children.add(child);
41 }
42
43 /*
44 * @see org.seasar.uruma.component.UIElementContainer#getChildren()
45 */
46 public List<UIElement> getChildren() {
47 return children;
48 }
49
50 /*
51 * @see org.seasar.uruma.component.base.AbstractUIElement#accept(org.seasar.uruma.component.UIElementVisitor)
52 */
53 @Override
54 public void accept(final UIElementVisitor visitor) {
55 visitor.visit(this);
56 }
57 }