package com.vaadin.tests.components.table;
import java.util.ArrayList;
import java.util.List;
import com.vaadin.data.util.BeanItemContainer;
import com.vaadin.tests.components.AbstractTestCase;
import com.vaadin.tests.util.Person;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.LegacyWindow;
import com.vaadin.ui.Table;
public class ScrollCausesRequestLoop extends AbstractTestCase {
@Override
public void init() {
setMainWindow(new LegacyWindow("", new TestView()));
}
@Override
protected String getDescription() {
return "Scrolling a table causes an infinite loop of UIDL requests in some cases";
}
@Override
protected Integer getTicketNumber() {
return 8040;
}
private static class TestView extends HorizontalLayout {
TestView() {
Table table = new Table();
List<Person> data = createData();
BeanItemContainer<Person> container = new BeanItemContainer<Person>(
Person.class, data) {
@Override
public Person getIdByIndex(int index) {
try {
// Simulate some loading delay with some exaggeration
// to make easier to reproduce
Thread.sleep(50);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
throw new RuntimeException(e);
}
return super.getIdByIndex(index);
}
};
table.setContainerDataSource(container);
addComponent(table);
}
}
private static List<Person> createData() {
int count = 500;
List<Person> data = new ArrayList<Person>(count);
for (int i = 0; i < count; i++) {
data.add(new Person("Person", "" + i, "Email", "Phone", "Street",
12345, "City"));
}
return data;
}
}