To display the results of stream data processing to the dashboard, you use the dashboard output connector as the output callback. Data output to the dashboard can be displayed as a line chart, a bar chart, or in other chart formats.
The dashboard output connector gets common records from the previous callback. The dashboard output connector then converts these records to data that can be displayed on the dashboard, and transfers the data to Flex Dashboard. The following figure shows the positioning and processing of the callback involved in dashboard output.
Figure 3-10 Positioning and processing of the callback involved in dashboard output