/**
* Copyright 2011 the original author or authors.
*
* 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.bricket.plugin.genericdomain.web;
import java.util.Iterator;
import java.util.List;
import org.apache.wicket.extensions.markup.html.repeater.util.SortParam;
import org.apache.wicket.spring.injection.annot.SpringBean;
import org.bricket.plugin.genericdomain.domain.DomainObject;
import org.bricket.plugin.genericdomain.service.GenericDomainService;
/**
* Generische Dataprovider, der die üblichen Zugriffe auf Domainobjekte eines
* Typs regelt. Hauptsachlich für Auflistung in Tabellen und Aufzählungen.
* Zuerst erstellt für die Ajaxfallbacktable
*
* @author Ingo Renner
* @author Henning Teek
*
* @param <T>
*/
public class DefaultDataProvider<T extends DomainObject> extends DataProvider<T> {
@SpringBean
private GenericDomainService genericDomainService;
public DefaultDataProvider(Class<T> type) {
super(type);
}
@Override
public Iterator<? extends T> iterator(int from, int count) {
final SortParam sort = getSort();
List<T> resultList = genericDomainService.loadAll(getType(), from, count, sort != null ? sort.getProperty()
: null, sort == null || sort.isAscending());
return resultList.iterator();
}
@Override
public int size() {
return genericDomainService.getCount(getType());
}
}