| /* |
| * $Id$ |
| * $Revision$ |
| * $Date$ |
| * |
| * ==================================================================== |
| * 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 wicket.extensions.markup.html.repeater.data.table; |
| |
| import wicket.Component; |
| import wicket.model.IModel; |
| |
| /** |
| * model wrapper that returns the specified default value if the model object is |
| * null |
| */ |
| public class LenientModelWrapper implements IModel |
| { |
| private static final long serialVersionUID = 1L; |
| |
| private IModel model; |
| private Object defaultValue; |
| |
| /** |
| * @param model |
| * model to be wrapped |
| * @param defaultValue |
| * default value to be returned if model object is null |
| */ |
| public LenientModelWrapper(IModel model, Object defaultValue) |
| { |
| this.model = model; |
| this.defaultValue = defaultValue; |
| } |
| |
| /** |
| * @see wicket.model.IModel#getNestedModel() |
| */ |
| public IModel getNestedModel() |
| { |
| return model.getNestedModel(); |
| } |
| |
| /** |
| * @see wicket.model.IModel#getObject(wicket.Component) |
| */ |
| public Object getObject(Component component) |
| { |
| try |
| { |
| return model.getObject(component); |
| } |
| catch (RuntimeException e) |
| { |
| return defaultValue; |
| } |
| catch (Exception e) |
| { |
| return defaultValue; |
| } |
| } |
| |
| /** |
| * @see wicket.model.IModel#setObject(wicket.Component, Object) |
| */ |
| public void setObject(Component component, Object object) |
| { |
| model.setObject(component, object); |
| } |
| |
| /** |
| * @see wicket.model.IModel#detach() |
| */ |
| public void detach() |
| { |
| model.detach(); |
| } |
| |
| } |