TemporalLinkP
TemporalLinkP[]⟹pattern
returns a pattern which matches a link to any object from a historical point in time (aka a temporal link).
TemporalLinkP[types]⟹pattern
returns a pattern which matches a temporal link to any object of the given types.
TemporalLinkP[types,fields]⟹pattern
returns a pattern which matches temporal link to any historical object of the given fields in the given types.
TemporalLinkP[types,fields,indices]⟹pattern
returns a pattern which matches a temporal link to any object of the given fields in the given types at the specific indices.
TemporalLinkP[objects]⟹pattern
returns a pattern which matches a temporal link to any of the specified objects.
TemporalLinkP[head]⟹pattern
returns a pattern which matches a temporal link to any object with the given head.
Details
Input
Output
Examples
Basic Examples (4)
Temporal Links are an extension to Links and represent an Object at a specific point in time. Temporal Links share the same structure as links with a date appended:
By default, LinkP[] does not accept Temporal Links:
The Temporal option on LinkP[] allows the pattern to include Temporal Links:
TemporalLinkP[] matches on Temporal Links, but does not match on Regular Links:
Additional Examples (20)
Downloading a Temporal Link is equivalent to Downloading the object at the time specified by the link:
Downloading Through a Temporal Link gets Values from Historical Version of the Object:
If a back link field is defined as Temporal, then the backlink is a temporal link that points back to the object at the time at which the backlink was created:
Inspecting a Temporal Link shows the historical version of that object:
You can search through Temporal Links for historical data:
Temporal Links and Links can be chained together in a Search. Dates can also be provided to search on previous temporal links within Constellation:
Temporal Links and Links can be chained together in a Download:
Match a new link to a specific field:
Match an existing one-way link with a link ID:
Restrict the match to a specific object ID:
Match any existing Link to an indexed field with a link-id:
Match a link to only model objects:
