Java tutorial
/* * Copyright (c) 2016 Tyrel Haveman and contributors. * * This file is part of Limbr. * * Limbr is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Limbr is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Limbr. If not, see <http://www.gnu.org/licenses/>. */ package management.limbr.ui.projects; import com.vaadin.data.util.BeanItemContainer; import management.limbr.data.ProjectRepository; import management.limbr.data.model.Project; import management.limbr.ui.Presenter; import management.limbr.ui.entity.EntityEditorPresenter; import management.limbr.ui.entity.EntityListView; import management.limbr.ui.projecteditor.ProjectEditorPresenter; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.util.StringUtils; import javax.annotation.PostConstruct; import java.io.Serializable; @Presenter public class ProjectsPresenter implements ProjectsView.Listener<Project>, Serializable, EntityEditorPresenter.EntityChangeHandler { private transient ProjectRepository repository; private transient EntityListView view; private transient ProjectEditorPresenter editor; @Autowired public ProjectsPresenter(ProjectRepository repository, ProjectEditorPresenter editor) { this.repository = repository; this.editor = editor; } @PostConstruct public void init() { editor.setEntityChangeHandler(this); } @Override public BeanItemContainer<Project> listEntities(String filter) { if (StringUtils.isEmpty(filter)) { return new BeanItemContainer<>(Project.class, repository.findAll()); } else { return new BeanItemContainer<>(Project.class, repository.findByNameStartsWithIgnoreCase(filter)); } } @Override public void viewInitialized(EntityListView view) { this.view = view; } @Override public void editItemClicked(Project project) { if (project == null) { editor.hide(); } else { editor.edit(project); } } @Override public void addNewClicked() { editor.edit(new Project()); } @Override public void onEntityChanged() { view.refresh(); } }