Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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.xaloon.wicket.component.classifier.panel; import javax.inject.Inject; import org.apache.wicket.ajax.AjaxRequestTarget; import org.apache.wicket.ajax.markup.html.form.AjaxButton; import org.apache.wicket.extensions.ajax.markup.html.modal.ModalWindow; import org.apache.wicket.markup.html.form.Form; import org.apache.wicket.markup.html.form.RequiredTextField; import org.apache.wicket.markup.html.panel.FeedbackPanel; import org.apache.wicket.markup.html.panel.Panel; import org.apache.wicket.model.CompoundPropertyModel; import org.apache.wicket.model.IModel; import org.apache.wicket.request.mapper.parameter.PageParameters; import org.apache.wicket.validation.IValidatable; import org.apache.wicket.validation.validator.AbstractValidator; import org.xaloon.core.api.classifier.Classifier; import org.xaloon.core.api.classifier.dao.ClassifierDao; /** * @author vytautas r. * @param <T> */ public class NewClassifierPanel<T extends Classifier> extends Panel { /** * */ private static final long serialVersionUID = 1L; private static final String ERROR_CLASSIFIER_TYPE_EXISTS = "ERROR_CLASSIFIER_TYPE_EXISTS"; @Inject private ClassifierDao classifierDao; private ModalWindow addNewClassifierModalWindow; /** * Construct. * * @param addNewClassifierModalWindow * @param pageParameters */ public NewClassifierPanel(ModalWindow addNewClassifierModalWindow, PageParameters pageParameters) { super(addNewClassifierModalWindow.getContentId()); this.addNewClassifierModalWindow = addNewClassifierModalWindow; } @SuppressWarnings("unchecked") @Override protected void onBeforeRender() { super.onBeforeRender(); removeAll(); T classifier = (T) classifierDao.newClassifier(); // Add classifier form add(new NewClassifierForm("form-new-classifier", new CompoundPropertyModel<T>(classifier))); } private class NewClassifierForm extends Form<T> { /** * */ private static final long serialVersionUID = 1L; public NewClassifierForm(String id, IModel<T> model) { super(id, model); setMultiPart(true); setOutputMarkupId(true); // Add feedback panel final FeedbackPanel feedbackPanel = new FeedbackPanel("panel-feedback"); feedbackPanel.setOutputMarkupId(true); add(feedbackPanel); // Add type RequiredTextField<String> typeField = new RequiredTextField<String>("type"); typeField.add(new ClassifierTypeValidator()); add(typeField); // Add name RequiredTextField<String> nameField = new RequiredTextField<String>("name"); add(nameField); // Add submit add(new AjaxButton("submit", this) { /** * */ private static final long serialVersionUID = 1L; @Override protected void onSubmit(AjaxRequestTarget target, Form<?> form) { T item = NewClassifierForm.this.getModelObject(); classifierDao.createClassifier(item); addNewClassifierModalWindow.close(target); } @Override protected void onError(AjaxRequestTarget target, Form<?> form) { target.add(feedbackPanel); } }); } } private class ClassifierTypeValidator extends AbstractValidator<String> { private static final long serialVersionUID = 1L; @Override protected void onValidate(IValidatable<String> validatable) { String value = validatable.getValue(); if (classifierDao.findClassifierByType(value) != null) { error(validatable, ERROR_CLASSIFIER_TYPE_EXISTS); } } } }