Java tutorial
/** * Copyright 2013 Tommi S.E. Laukkanen * * 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 org.vaadin.addons.sitekit.viewlet.administrator.customer; import org.vaadin.addons.sitekit.flow.AbstractFlowlet; import org.vaadin.addons.sitekit.grid.FieldDescriptor; import org.vaadin.addons.sitekit.grid.FilterDescriptor; import org.vaadin.addons.sitekit.grid.Grid; import org.vaadin.addons.sitekit.model.Company; import org.vaadin.addons.sitekit.model.Customer; import org.vaadin.addons.sitekit.model.PostalAddress; import org.vaadin.addons.sitekit.site.SiteFields; import com.vaadin.data.util.filter.Compare; import com.vaadin.ui.Button; import com.vaadin.ui.Button.ClickEvent; import com.vaadin.ui.Button.ClickListener; import com.vaadin.ui.GridLayout; import com.vaadin.ui.HorizontalLayout; import com.vaadin.ui.Table; import com.vaadin.ui.TextField; import org.vaadin.addons.lazyquerycontainer.EntityContainer; import javax.persistence.EntityManager; import java.util.ArrayList; import java.util.Date; import java.util.List; /** * Customer list flow. * * @author Tommi S.E. Laukkanen */ public final class CustomersFlowlet extends AbstractFlowlet { /** Serial version UID. */ private static final long serialVersionUID = 1L; /** The entity container. */ private EntityContainer<Customer> entityContainer; /** The customer grid. */ private Grid entityGrid; @Override public String getFlowletKey() { return "customers"; } @Override public boolean isDirty() { return false; } @Override public boolean isValid() { return true; } @Override public void initialize() { final List<FieldDescriptor> fieldDefinitions = SiteFields.getFieldDescriptors(Customer.class); final List<FilterDescriptor> filterDefinitions = new ArrayList<FilterDescriptor>(); filterDefinitions.add(new FilterDescriptor("companyName", "companyName", "Company Name", new TextField(), 101, "=", String.class, "")); filterDefinitions.add(new FilterDescriptor("lastName", "lastName", "Last Name", new TextField(), 101, "=", String.class, "")); final EntityManager entityManager = getSite().getSiteContext().getObject(EntityManager.class); entityContainer = new EntityContainer<Customer>(entityManager, true, false, false, Customer.class, 1000, new String[] { "companyName", "lastName", "firstName" }, new boolean[] { true, true, true }, "customerId"); for (final FieldDescriptor fieldDefinition : fieldDefinitions) { entityContainer.addContainerProperty(fieldDefinition.getId(), fieldDefinition.getValueType(), fieldDefinition.getDefaultValue(), fieldDefinition.isReadOnly(), fieldDefinition.isSortable()); } final GridLayout gridLayout = new GridLayout(1, 2); gridLayout.setSizeFull(); gridLayout.setMargin(false); gridLayout.setSpacing(true); gridLayout.setRowExpandRatio(1, 1f); setViewContent(gridLayout); final HorizontalLayout buttonLayout = new HorizontalLayout(); buttonLayout.setSpacing(true); buttonLayout.setSizeUndefined(); gridLayout.addComponent(buttonLayout, 0, 0); final Table table = new Table(); entityGrid = new Grid(table, entityContainer); entityGrid.setFields(fieldDefinitions); entityGrid.setFilters(filterDefinitions); //entityGrid.setFixedWhereCriteria("e.owner.companyId=:companyId"); table.setColumnCollapsed("created", true); table.setColumnCollapsed("modified", true); table.setColumnCollapsed("company", true); gridLayout.addComponent(entityGrid, 0, 1); final Button addButton = new Button("Add"); addButton.setIcon(getSite().getIcon("button-icon-add")); addButton.setWidth(100, UNITS_PIXELS); buttonLayout.addComponent(addButton); addButton.addListener(new ClickListener() { /** Serial version UID. */ private static final long serialVersionUID = 1L; @Override public void buttonClick(final ClickEvent event) { final Customer customer = new Customer(); customer.setCreated(new Date()); customer.setModified(customer.getCreated()); customer.setInvoicingAddress(new PostalAddress()); customer.setDeliveryAddress(new PostalAddress()); customer.setOwner((Company) getSite().getSiteContext().getObject(Company.class)); final CustomerFlowlet customerView = getFlow().forward(CustomerFlowlet.class); customerView.edit(customer, true); } }); final Button editButton = new Button("Edit"); editButton.setIcon(getSite().getIcon("button-icon-edit")); editButton.setWidth(100, UNITS_PIXELS); buttonLayout.addComponent(editButton); editButton.addListener(new ClickListener() { /** Serial version UID. */ private static final long serialVersionUID = 1L; @Override public void buttonClick(final ClickEvent event) { final Customer entity = entityContainer.getEntity(entityGrid.getSelectedItemId()); final CustomerFlowlet customerView = getFlow().forward(CustomerFlowlet.class); customerView.edit(entity, false); } }); final Button removeButton = new Button("Remove"); removeButton.setIcon(getSite().getIcon("button-icon-remove")); removeButton.setWidth(100, UNITS_PIXELS); buttonLayout.addComponent(removeButton); removeButton.addListener(new ClickListener() { /** Serial version UID. */ private static final long serialVersionUID = 1L; @Override public void buttonClick(final ClickEvent event) { entityContainer.removeItem(entityGrid.getSelectedItemId()); entityContainer.commit(); } }); } @Override public void enter() { final Company company = getSite().getSiteContext().getObject(Company.class); //entityGrid.getFixedWhereParameters().put("companyId", company.getCompanyId()); entityContainer.removeDefaultFilters(); entityContainer.addDefaultFilter(new Compare.Equal("owner.companyId", company.getCompanyId())); entityGrid.refresh(); } }