/*
* Copyright 2014-2016 CyberVision, 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 org.kaaproject.kaa.server.admin.client.mvp.view.widget;
import com.google.gwt.text.shared.Renderer;
import org.kaaproject.kaa.common.dto.TopicDto;
import java.io.IOException;
import java.util.Collections;
import java.util.List;
public class TopicListBox extends MultiValueListBox<TopicDto> {
public TopicListBox() {
super(new TopicDtoRenderer());
}
/**
* Reset.
*/
public void reset() {
List<TopicDto> emptyList = Collections.emptyList();
setValue(null);
setAcceptableValues(emptyList);
}
static class TopicDtoRenderer implements Renderer<TopicDto> {
@Override
public String render(TopicDto object) {
return object != null ? object.getName() : "";
}
@Override
public void render(TopicDto object, Appendable appendable)
throws IOException {
appendable.append(render(object));
}
}
}