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package com.vaadin.tests.performance;
import java.util.List;
import java.util.Optional;
import java.util.function.Function;
import javax.servlet.annotation.WebServlet;
import com.vaadin.annotations.VaadinServletConfiguration;
import com.vaadin.server.VaadinServlet;
import com.vaadin.tests.data.bean.Address;
import com.vaadin.tests.data.bean.Person;
import com.vaadin.v7.data.Item;
import com.vaadin.v7.data.util.BeanItemContainer;
import com.vaadin.v7.data.util.GeneratedPropertyContainer;
import com.vaadin.v7.data.util.PropertyValueGenerator;
import com.vaadin.v7.ui.Grid;
/**
* @author Vaadin Ltd
*
*/
public class CompatibilityGridMemory extends AbstractBeansMemoryTest<Grid> {
public static final String PATH = "/grid-compatibility-memory/";
/**
* The main servlet for the application.
*/
@WebServlet(urlPatterns = PATH
+ "*", name = "CompatibilityGridServlet", asyncSupported = true)
@VaadinServletConfiguration(ui = CompatibilityGridMemory.class, productionMode = false, widgetset = "com.vaadin.v7.Vaadin7WidgetSet")
public static class Servlet extends VaadinServlet {
}
private static class ColumnGenerator
extends PropertyValueGenerator<String> {
private final Function<Address, Object> getter;
ColumnGenerator(Function<Address, Object> getter) {
this.getter = getter;
}
@Override
public String getValue(Item item, Object itemId, Object propertyId) {
Address address = ((Person) itemId).getAddress();
return Optional.ofNullable(address).map(getter)
.map(Object::toString).orElse(null);
}
@Override
public Class<String> getType() {
return String.class;
}
}
@Override
protected Grid createComponent() {
return new Grid();
}
@Override
protected void setInMemoryContainer(Grid grid, List<Person> persons) {
BeanItemContainer<Person> container = new BeanItemContainer<>(
Person.class);
container.addAll(persons);
GeneratedPropertyContainer generated = new GeneratedPropertyContainer(
container);
generated.addGeneratedProperty("street",
new ColumnGenerator(Address::getStreetAddress));
generated.addGeneratedProperty("zip",
new ColumnGenerator(Address::getPostalCode));
generated.addGeneratedProperty("city",
new ColumnGenerator(Address::getCity));
grid.setContainerDataSource(generated);
configureColumns(grid);
}
@Override
protected void setBackendContainer(Grid component, List<Person> data) {
throw new UnsupportedOperationException();
}
private void configureColumns(Grid grid) {
grid.setColumns("firstName", "lastName", "street", "zip", "city");
}
}
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