1.5.2.2.2. Screen Controller
Open the Controller tab and replace its content with the following code:
package com.company.sampler.web.screens;
import com.company.sampler.entity.CountryGrowth;
import com.haulmont.cuba.gui.components.AbstractWindow;
import com.haulmont.cuba.gui.data.CollectionDatasource;
import javax.inject.Inject;
import java.util.Map;
import java.util.UUID;
public class Column3dChart extends AbstractWindow {
@Inject
private CollectionDatasource<CountryGrowth, UUID> countryGrowthDs;
@Override
public void init(Map<String, Object> params) {
countryGrowthDs.refresh();
countryGrowthDs.includeItem(countryGrowth("USA", 3.5, 4.2));
countryGrowthDs.includeItem(countryGrowth("UK", 1.7, 3.1));
countryGrowthDs.includeItem(countryGrowth("Canada", 2.8, 2.9));
countryGrowthDs.includeItem(countryGrowth("Japan", 2.6, 2.3));
countryGrowthDs.includeItem(countryGrowth("France", 1.4, 2.1));
countryGrowthDs.includeItem(countryGrowth("Brazil", 2.6, 4.9));
countryGrowthDs.includeItem(countryGrowth("Russia", 6.4, 7.2));
countryGrowthDs.includeItem(countryGrowth("India", 8.0, 7.1));
countryGrowthDs.includeItem(countryGrowth("China", 9.9, 10.1));
}
private CountryGrowth countryGrowth(String country, double year2014, double year2015) {
CountryGrowth cg = new CountryGrowth();
cg.setCountry(country);
cg.setYear2014(year2014);
cg.setYear2015(year2015);
return cg;
}
}
The init(Map<String, Object> params)
method populates the countryGrowthDs
datasource with the data. The refresh()
method initializes the datasource. This method should be invoked regardless of the refreshMode="NEVER"
attribute declared in the XML-descriptor.