uitest/src/com/vaadin/tests/components/combobox/ComboBoxSlow.java


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package com.vaadin.tests.components.combobox;

import java.util.Map;

import com.vaadin.data.Property.ValueChangeEvent;
import com.vaadin.data.Property.ValueChangeListener;
import com.vaadin.tests.components.TestBase;
import com.vaadin.tests.util.Log;
import com.vaadin.ui.ComboBox;

public class ComboBoxSlow extends TestBase {

    private Log log = new Log(5);

    @Override
    protected Integer getTicketNumber() {
        return 7949;
    }

    @Override
    protected String getDescription() {
        return "The ComboBox artificially introduces a server delay to more easily spot problems";
    }

    public class SlowComboBox extends ComboBox {
        @Override
        public void changeVariables(Object source, Map<String, Object> variables) {
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            super.changeVariables(source, variables);
        }
    }

    @Override
    protected void setup() {
        addComponent(log);
        final SlowComboBox cb = new SlowComboBox();
        cb.setImmediate(true);
        for (int i = 0; i <= 1000; i++) {
            cb.addItem("Item " + i);
        }
        cb.addListener(new ValueChangeListener() {

            @Override
            public void valueChange(ValueChangeEvent event) {
                log.log("Value changed to " + cb.getValue());

            }
        });
        addComponent(cb);
    }
}