I have a fragment with a barchart that has a title.
In order to change the title programmatically I have it injected into the controller. The title is not injected and the value is null, leading to a NPE.
Perhaps the title is not something that can be injected. In that case studio should not allow injecting it through context actions.
This brings us to the question: what exactly can and cannot be injected? How can we know this?
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<fragment xmlns="http://jmix.io/schema/flowui/fragment" xmlns:charts="http://jmix.io/schema/charts/ui">
<data>
<collection id="keyValuesDc" class="com.agnicio.web.component.kpi.entity.KeyValueKpiEntity"/>
</data>
<content>
<vbox id="root" classNames="kpi-fragment">
<charts:chart id="chart" width="200px" height="200px" minHeight="30em">
<charts:title id="title" right="10%"/>
<charts:legend/>
<charts:tooltip trigger="AXIS">
<charts:axisPointer type="SHADOW"/>
</charts:tooltip>
<charts:xAxes>
<charts:xAxis/>
</charts:xAxes>
<charts:yAxes>
<charts:yAxis/>
</charts:yAxes>
<charts:dataSet>
<charts:source dataContainer="keyValuesDc" categoryField="key" valueFields="value"/>
</charts:dataSet>
<charts:series>
<charts:bar name="# violated constraints"/>
</charts:series>
</charts:chart>
</vbox>
</content>
</fragment>
package com.agnicio.web.component.kpi.view.barchartkpifragment.barchartkpifragment;
import com.agnicio.web.component.kpi.entity.KeyValueCollectionKpiEntity;
import com.agnicio.web.component.kpi.entity.KeyValueKpiEntity;
import com.agnicio.web.component.kpi.view.Kpifragment;
import com.vaadin.flow.component.orderedlayout.VerticalLayout;
import io.jmix.chartsflowui.component.Chart;
import io.jmix.chartsflowui.kit.component.model.Title;
import io.jmix.flowui.fragment.Fragment;
import io.jmix.flowui.fragment.FragmentDescriptor;
import io.jmix.flowui.model.CollectionContainer;
import io.jmix.flowui.view.ViewComponent;
@FragmentDescriptor("bar-chart-kpi-fragment.xml")
public class BarChartKpiFragment extends Fragment<VerticalLayout> implements Kpifragment<KeyValueCollectionKpiEntity> {
@ViewComponent
private CollectionContainer<KeyValueKpiEntity> keyValuesDc;
@ViewComponent
private Chart chart;
@ViewComponent
private Title title;
public void setEntity(KeyValueCollectionKpiEntity entity) {
keyValuesDc.setItems(entity.getKeyValues());
}
}