/** * Copyright (C) 2010 Asterios Raptis * * 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 de.alpharogroup.wicket.components.listview; import java.util.List; import org.apache.wicket.Component; import org.apache.wicket.markup.html.list.ListItem; import org.apache.wicket.markup.html.list.ListView; import org.apache.wicket.model.IModel; import org.apache.wicket.model.util.ListModel; import org.apache.wicket.util.lang.Args; import de.alpharogroup.wicket.base.BasePanel; import lombok.Getter; /** * The Class ListViewPanel takes a {@link ListView} of a generic type. * * @param <T> * the generic type of model object */ public abstract class ListViewPanel<T> extends BasePanel<List<T>> { /** The Constant serialVersionUID. */ private static final long serialVersionUID = 1L; /** The list view. */ @Getter private final ListView<T> listView; /** * Instantiates a new {@link ListViewPanel}. * * @param id * the id * @param model * the model */ public ListViewPanel(final String id, final IModel<List<T>> model) { super(id, Args.notNull(model, "model")); add(listView = newListView("listView", model)); } /** * Instantiates a new {@link ListViewPanel}. * * @param id * the id * @param list * the list */ public ListViewPanel(final String id, final List<T> list) { this(id, new ListModel<>(list)); } /** * Abstract factory method for creating the new {@link Component} in the list. This method is * invoked in the {@link ListView#populateItem(ListItem)} from the derived classes and can be * overridden so users can provide their own version of a new {@link Component} in the list. * * @param id * the id * @param item * the item * @return the new {@link Component} in the list. */ protected abstract Component newListComponent(final String id, final ListItem<T> item); /** * Factory method for creating a new {@link ListView}. This method is invoked in the constructor * from the derived classes and can be overridden so users can provide their own version of the * new {@link ListView}. * * @param id * the id * @param model * the model * @return the new {@link ListView}. */ protected ListView<T> newListView(final String id, final IModel<List<T>> model) { final ListView<T> listView = new ListView<T>(id, model) { /** The Constant serialVersionUID. */ private static final long serialVersionUID = 1L; /** * {@inheritDoc} */ @Override protected void populateItem(final ListItem<T> item) { item.add(newListComponent("item", item)); } }; listView.setReuseItems(true); return listView; } }