Activity Note that property names and descriptions were reused from
http://activitystrea.ms/specs/json/1.0/. Although that document specifies how activities are serialized in JSON the
names and concepts can be reused. Additional properties and behaviors are added where the JSON abstraction is not
suitable. All properties referring to IDs or URLs may return a path instead of an absolute IRI if the activity is
still present in the repository. It is the tasks of the exporting servlet to make them absolute.
Describes the target of the activity. The precise meaning of the activity's target is dependent on the
activities verb, but will often be the object the English preposition "to". For instance, in the activity,
"John saved a movie to his wishlist", the target of the activity is "wishlist". The activity target MUST NOT be
used to identity an indirect object that is not a target of the activity. An activity MAY contain a target
property whose value is a single Object.
Describes the primary object of the activity. For instance, in the activity,
"John saved a movie to his wishlist", the object of the activity is "movie". An activity SHOULD contain an
object property whose value is a single Object. If the object property is not contained, the primary object of
the activity MAY be implied by context.