Scalar Items

Device Classes can contain a maximum of one scalaritems object which lists all of the controllable and/or observable scalar items of the device. When addressing children of the scalar items object, other objects should use /scl/ followed by the id of the scalar item.

Ordering

The order in which scalar items appear has no meaning; scalar items of the same class that appear in a certain order in the scalar items list should have no impact on the order any corresponding user interface elements might be presented.

When ordering of scalar items of the same class is required, they shall be instantiated with the same unique identifier followed by the ! delimiter and an instance number. The instance number shall be used to define the order of like objects.

See scalar item id description for further information.

Children

Scalar items can have the following children:

• Scalar Item

Markup

• UDR Type: scalaritems

Example:

{
  "udrtype": "scalaritems",
  "children": [
    {
      "udrtype": "scalaritem",
      "class": "org.esta.lib.intensity.1/intensity",
      "id": "intensity",
      "access": "readwrite",
      "lifetime": "runtime"
    }
  ]
}