Java tutorial
/* * The MIT License * * Copyright 2014 exsio. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package pl.exsio.ca.module.terrain.evidence; import com.vaadin.addon.jpacontainer.EntityItem; import com.vaadin.addon.jpacontainer.JPAContainer; import static com.vaadin.addon.jpacontainer.filter.Filters.eq; import com.vaadin.data.Property; import com.vaadin.data.util.converter.Converter; import com.vaadin.data.util.converter.StringToDateConverter; import com.vaadin.ui.Form; import com.vaadin.ui.Layout; import com.vaadin.ui.Table; import com.vaadin.ui.TextArea; import com.vaadin.ui.VerticalLayout; import java.text.DateFormat; import java.util.Locale; import pl.exsio.ca.model.Terrain; import pl.exsio.ca.model.TerrainNote; import pl.exsio.ca.model.entity.factory.CaEntityFactory; import pl.exsio.ca.model.repository.provider.CaRepositoryProvider; import static pl.exsio.jin.translationcontext.TranslationContext.t; import pl.exsio.frameset.security.context.SecurityContext; import pl.exsio.frameset.security.userdetails.UserDetailsProvider; import pl.exsio.frameset.vaadin.ui.support.component.data.table.JPADataTable; import pl.exsio.frameset.vaadin.ui.support.component.data.table.TableDataConfig; import pl.exsio.jin.annotation.TranslationPrefix; /** * * @author exsio */ @TranslationPrefix("ca.tr_notes") public class NotesDataTable extends JPADataTable<TerrainNote, Form> { protected CaEntityFactory caEntities; protected CaRepositoryProvider caRepositories; protected Terrain terrain; public NotesDataTable(SecurityContext security) { super(Form.class, new TableDataConfig(NotesDataTable.class) { { setColumnHeaders("content", "created_at", "created_by", "id"); setVisibleColumns("content", "createdAt", "createdBy", "id"); } }, security); } @Override protected void doInit() { super.doInit(); if (this.terrain == null) { this.setEnabled(false); } this.setHeight("250px"); Converter dateConverter = new StringToDateConverter() { @Override protected DateFormat getFormat(Locale locale) { return DateFormat.getDateInstance(DateFormat.MEDIUM, locale); } }; this.dataComponent.setConverter("createdAt", dateConverter); } @Override protected JPAContainer<TerrainNote> createContainer() { JPAContainer<TerrainNote> container = super.createContainer(); container.addContainerFilter(eq("terrain", this.terrain)); container.sort(new Object[] { "createdAt" }, new boolean[] { false }); return container; } @Override protected boolean canAddItem() { return true; } @Override protected boolean canOpenItem(EntityItem<? extends TerrainNote> item) { return true; } @Override protected boolean canSaveItem(EntityItem<? extends TerrainNote> item) { return item.getEntity().getCreatedBy().equals(UserDetailsProvider.getUserDetails().getUsername()) || this.security.canWrite(); } @Override protected boolean canDeleteItem(EntityItem<? extends TerrainNote> item) { return item.getEntity().getCreatedBy().equals(UserDetailsProvider.getUserDetails().getUsername()) || this.security.canDelete(); } @Override protected Table createTable(JPAContainer<TerrainNote> container) { return new Table(this.config.getCaption(), container) { @Override protected String formatPropertyValue(Object rowId, Object colId, Property property) { switch (colId.toString()) { default: return super.formatPropertyValue(rowId, colId, property); } } }; } @Override protected Layout decorateForm(Form form, EntityItem<? extends TerrainNote> item, int mode) { VerticalLayout formLayout = new VerticalLayout(); form.addField("content", this.getContentField(item)); form.setBuffered(true); form.setEnabled(true); formLayout.addComponent(form); return formLayout; } @Override protected float getControlsExpandRatio() { return 1.4f; } private TextArea getContentField(EntityItem<? extends TerrainNote> item) { TextArea desc = new TextArea(t("content")); desc.setPropertyDataSource(item.getItemProperty("content")); desc.setNullRepresentation(""); return desc; } @Override protected <S extends TerrainNote> Class<S> getEntityClass() { return this.caEntities.getTerrainNoteClass(); } public void setCaEntities(CaEntityFactory caEntities) { this.caEntities = caEntities; } public void setTerrain(Terrain terrain) { this.terrain = terrain; } public void setCaRepositories(CaRepositoryProvider caRepositories) { this.caRepositories = caRepositories; } @Override public void beforeDataAddition(Form form, EntityItem<? extends TerrainNote> item, JPAContainer<TerrainNote> container) { item.getItemProperty("terrain").setValue(this.terrain); } }