/* * Copyright (C) 2009-2015 Open Wide * Contact: contact@openwide.fr * * 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 fr.openwide.core.wicket.more.markup.html.form; import org.apache.wicket.Component; import org.apache.wicket.model.IModel; import com.google.common.base.Supplier; public class CollectionResetter<C> implements Resetter { private static final long serialVersionUID = 8258908044311296337L; private final Supplier<C> newCollectionSupplier; public CollectionResetter(Supplier<C> newCollectionSupplier) { this.newCollectionSupplier = newCollectionSupplier; } @Override public void reset(Component component) { @SuppressWarnings("unchecked") IModel<C> model = (IModel<C>) component.getDefaultModel(); if (model != null && model.getObject() != null) { model.setObject(newCollectionSupplier.get()); } } }