Entities Datasource
General
Use the Entities Datasource to retrieve entity model objects from OpenNMS. It currently supports alarms and nodes.
(For an example of the entities datasource in action, see Creating a Filter Panel).
Datasource Queries
The behavior of this datasource changes depending on which entity is chosen. Attributes and values will change depending on the entity type.
| Currently the entities datasource only allows a single target. Subsequent targets in the query editor will be ignored. |
Template Queries
To change the behavior of a template query (like a datasource variable), you can pass a function to the query field, with an optional attribute argument.
If no attribute argument is given, the query will return the id attribute of the entity.
The default if the query field is empty is alarms() (return a list of alarm IDs).