component ID

register a provider from where to get the statistic value

Add a component to the dashboard and return true if the component was added, false if the component ID was already present

component name or title

clear all component change flags. hasChanged() will return false after this call

check if one of the component property has changed

auto-update the component internally some components like StatisticProvider are capable of automatically updating their values before a dashboard refr

construct a new card and add it to the dashboard

construct a new chart and add it to the dashboard

construct a new component without adding it to any dashboard

construct a new statistic and add it to the dashboard

construct a new statistic and add it to the dashboard

construct a new statistic and add it to the dashboard

generates the layout JSON string to the frontend

can be used to check if the async_http task might currently access the cards data, in which case you should not modify them

generate a new unique component ID

Register a callback that will be called before some updates will be sent to the client. This callback can be used for example to refresh some card val

update the statistic value by calling the provider and returns true if the value has changed

Send Card Updates to all clients */

mark a component property as changed

change component name (not all components support a name change)

update the statistic value and returns true if the value has changed

set the x-axis values

set the y-axis values