$schema: ../codegen/schema.yaml
name: Collection
compactName: Collection
uri: "https://www.w3.org/ns/activitystreams#Collection"
extends: "https://www.w3.org/ns/activitystreams#Object"
entity: true
description: |
  A `Collection` is a subtype of {@link Object} that represents ordered or
  unordered sets of {@link Object} or {@link Link} instances.

  Refer to the Activity Streams 2.0 Core specification for a complete
  description of the Collection type.
defaultContext:
- "https://www.w3.org/ns/activitystreams"
- "https://w3id.org/security/data-integrity/v1"
- toot: "http://joinmastodon.org/ns#"
  misskey: "https://misskey-hub.net/ns#"
  fedibird: "http://fedibird.com/ns#"
  ChatMessage: "http://litepub.social/ns#ChatMessage"
  sensitive: "as:sensitive"
  votersCount: "toot:votersCount"
  Emoji: "toot:Emoji"
  Hashtag: "as:Hashtag"
  quoteUrl: "as:quoteUrl"
  _misskey_quote: "misskey:_misskey_quote"
  quoteUri: "fedibird:quoteUri"
  emojiReactions:
    "@id": "fedibird:emojiReactions"
    "@type": "@id"

properties:
- singularName: totalItems
  functional: true
  compactName: totalItems
  uri: "https://www.w3.org/ns/activitystreams#totalItems"
  description: |
    A non-negative integer specifying the total number of objects contained by
    the logical view of the collection. This number might not reflect the actual
    number of items serialized within the {@link Collection} object instance.
  range:
  - "http://www.w3.org/2001/XMLSchema#nonNegativeInteger"

- singularName: current
  functional: true
  compactName: current
  uri: "https://www.w3.org/ns/activitystreams#current"
  description: |
    In a paged {@link Collection}, indicates the page that contains
    the most recently updated member items.
  range:
  - "https://www.w3.org/ns/activitystreams#CollectionPage"

- singularName: first
  functional: true
  compactName: first
  uri: "https://www.w3.org/ns/activitystreams#first"
  description: |
    In a paged {@link Collection}, indicates the furthest preceding page of
    items in the collection.
  range:
  - "https://www.w3.org/ns/activitystreams#CollectionPage"

- singularName: last
  functional: true
  compactName: last
  uri: "https://www.w3.org/ns/activitystreams#last"
  description: |
    In a paged {@link Collection}, indicates the furthest proceeding page of
    the collection.
  range:
  - "https://www.w3.org/ns/activitystreams#CollectionPage"

- pluralName: items
  singularName: item
  compactName: items
  uri: "https://www.w3.org/ns/activitystreams#items"
  description: |
    Identifies the items contained in a collection.  The items might be ordered
    or unordered.
  range:
  - "https://www.w3.org/ns/activitystreams#Object"
  - "https://www.w3.org/ns/activitystreams#Link"