Object Schema

https://ns.adobe.com/xdm/external/activity-streams-2/object

Describes an object of any kind. The Object type serves as the base type for most of the other kinds of objects defined in the Activity Vocabulary, including other Core types such as [Activity](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-activity), [IntransitiveActivity](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-intransitiveactivity), [Collection](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-collection) and [OrderedCollection](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-orderedcollection).

Abstract	Extensible	Status	Identifiable	Custom Properties	Additional Properties	Defined In
Can be instantiated	Yes	Experimental	Yes	Forbidden	Permitted	external/activity-streams-2/object.schema.json

Schema Hierarchy

Object https://ns.adobe.com/xdm/external/activity-streams-2/object
- JSON-LD @context https://ns.adobe.com/xdm/external/activity-streams-2/context
- JSON-LD @id https://ns.adobe.com/xdm/external/activity-streams-2/id
- JSON-LD @type https://ns.adobe.com/xdm/external/activity-streams-2/type
- Object https://ns.adobe.com/xdm/external/activity-streams-2/object
- Link https://ns.adobe.com/xdm/external/activity-streams-2/link
- RDF Language Tagged String https://ns.adobe.com/xdm/external/activity-streams-2/rdf-langstring
- Image Document https://ns.adobe.com/xdm/external/activity-streams-2/image
- Collection https://ns.adobe.com/xdm/external/activity-streams-2/collection

Object Example

{
  "@context": {
    "activitystreams": "http://www.w3.org/ns/activitystreams#"
  },
  "@type": "https://www.w3.org/ns/activitystreams#Object",
  "@id": "http://www.test.example/object/1",
  "activitystreams:name": "A Simple, non-specific object"
}

Object Properties

Property	Type	Required	Defined by
@context	complex	Optional	JSON-LD `@context`
@id	`string`	Optional	JSON-LD `@id`
@type	complex	Optional	JSON-LD `@type`
activitystreams:attachment	complex	Optional	Object (this schema)
activitystreams:attributedTo	complex	Optional	Object (this schema)
activitystreams:audience	complex	Optional	Object (this schema)
activitystreams:bcc	complex	Optional	Object (this schema)
activitystreams:bto	complex	Optional	Object (this schema)
activitystreams:cc	complex	Optional	Object (this schema)
activitystreams:content	complex	Optional	Object (this schema)
activitystreams:context	complex	Optional	Object (this schema)
activitystreams:duration	`string`	Optional	Object (this schema)
activitystreams:endTime	`string`	Optional	Object (this schema)
activitystreams:generator	complex	Optional	Object (this schema)
activitystreams:icon	complex	Optional	Object (this schema)
activitystreams:image	complex	Optional	Object (this schema)
activitystreams:inReplyTo	complex	Optional	Object (this schema)
activitystreams:location	complex	Optional	Object (this schema)
activitystreams:mediaType	`string`	Optional	Object (this schema)
activitystreams:name	complex	Optional	Object (this schema)
activitystreams:preview	complex	Optional	Object (this schema)
activitystreams:published	`string`	Optional	Object (this schema)
activitystreams:replies	Collection	Optional	Object (this schema)
activitystreams:startTime	`string`	Optional	Object (this schema)
activitystreams:summary	complex	Optional	Object (this schema)
activitystreams:tag	complex	Optional	Object (this schema)
activitystreams:to	complex	Optional	Object (this schema)
activitystreams:updated	`string`	Optional	Object (this schema)
activitystreams:url	complex	Optional	Object (this schema)
`*`	any	Additional	this schema allows additional properties

@context

@context

is optional
type: complex
defined in JSON-LD @context

@context Type

One of the following conditions need to be fulfilled.

Condition 1

Condition 2

Array type:

All items must be of the type: Unknown type oneOf.

{
  "type": "array",
  "items": {
    "oneOf": [
      {
        "type": "string",
        "format": "uri"
      },
      {
        "type": "object",
        "properties": {
          "@vocab": {
            "anyOf": [
              {
                "type": "string",
                "format": "uri"
              },
              {
                "$ref": "#/definitions/blank-node-identifier"
              },
              {
                "$ref": "#/definitions/term"
              },
              {
                "type": "null"
              }
            ]
          },
          "@base": {
            "oneOf": [
              {
                "type": "string",
                "format": "uri"
              },
              {
                "type": "null"
              }
            ]
          },
          "@language": {
            "oneOf": [
              {
                "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/rdf-langstring#/definitions/tag"
              },
              {
                "type": "null"
              }
            ]
          }
        },
        "patternProperties": {
          "^([^:@_].*)|(_:.*)$": {
            "anyOf": [
              {
                "type": "string",
                "format": "uri"
              },
              {
                "$ref": "#/definitions/term"
              },
              {
                "$ref": "#/definitions/blank-node-identifier"
              },
              {
                "$ref": "#/definitions/keywords"
              },
              {
                "type": "null"
              },
              {
                "$ref": "#/definitions/expanded-term-definition"
              },
              {
                "properties": {
                  "@context": {
                    "$ref": "#/definitions/single-or-array-of-contexts"
                  }
                },
                "type": "object"
              }
            ]
          }
        },
        "additionalProperties": false
      }
    ],
    "type": "oneOf"
  }
}

@id

@id

is optional
type: string
defined in JSON-LD @id

@id Type

string

format: uri – Uniformous Resource Identifier (according to RFC3986)

@type

@type

is optional
type: complex
defined in JSON-LD @type

@type Type

One of the following conditions need to be fulfilled.

Condition 1

Array type:

All items must be of the type: string

format: uri – Uniformous Resource Identifier (according to RFC3986)

Condition 2

string

format: uri – Uniformous Resource Identifier (according to RFC3986)

activitystreams:attachment

Identifies a resource attached or related to an object that potentially requires special handling. The intent is to provide a model that is at least semantically similar to attachments in email. Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:attachment

is optional
type: complex
defined in this schema

activitystreams:attachment Type

One of the following conditions need to be fulfilled.

Condition 1

Any following options needs to be fulfilled.

Option 1

string

format: uri – Uniformous Resource Identifier (according to RFC3986)

Option 2

Object – https://ns.adobe.com/xdm/external/activity-streams-2/object

Option 3

Link – https://ns.adobe.com/xdm/external/activity-streams-2/link

Condition 2

Array type:

All items must be of the type: Unknown type anyOf.

{
  "items": {
    "anyOf": [
      {
        "type": "string",
        "format": "uri"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/object",
        "$linkVal": "Object",
        "$linkPath": "object.schema.md"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/link",
        "$linkVal": "Link",
        "$linkPath": "link.schema.md"
      }
    ],
    "type": "anyOf"
  },
  "type": "array"
}

activitystreams:attributedTo

Identifies one or more entities to which this object is attributed. The attributed entities might not be Actors. For instance, an object might be attributed to the completion of another activity. Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:attributedTo

is optional
type: complex
defined in this schema

activitystreams:attributedTo Type

One of the following conditions need to be fulfilled.

Condition 1

Any following options needs to be fulfilled.

Option 1

string

format: uri – Uniformous Resource Identifier (according to RFC3986)

Option 2

Object – https://ns.adobe.com/xdm/external/activity-streams-2/object

Option 3

Link – https://ns.adobe.com/xdm/external/activity-streams-2/link

Condition 2

Array type:

All items must be of the type: Unknown type anyOf.

{
  "items": {
    "anyOf": [
      {
        "type": "string",
        "format": "uri"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/object",
        "$linkVal": "Object",
        "$linkPath": "object.schema.md"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/link",
        "$linkVal": "Link",
        "$linkPath": "link.schema.md"
      }
    ],
    "type": "anyOf"
  },
  "type": "array"
}

activitystreams:audience

Identifies one or more entities that represent the total population of entities for which the object can considered to be relevant. Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:audience

is optional
type: complex
defined in this schema

activitystreams:audience Type

One of the following conditions need to be fulfilled.

Condition 1

Any following options needs to be fulfilled.

Option 1

string

format: uri – Uniformous Resource Identifier (according to RFC3986)

Option 2

Object – https://ns.adobe.com/xdm/external/activity-streams-2/object

Option 3

Link – https://ns.adobe.com/xdm/external/activity-streams-2/link

Condition 2

Array type:

All items must be of the type: Unknown type anyOf.

{
  "items": {
    "anyOf": [
      {
        "type": "string",
        "format": "uri"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/object",
        "$linkVal": "Object",
        "$linkPath": "object.schema.md"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/link",
        "$linkVal": "Link",
        "$linkPath": "link.schema.md"
      }
    ],
    "type": "anyOf"
  },
  "type": "array"
}

activitystreams:bcc

Identifies one or more Objects that are part of the private secondary audience of this Object. Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:bcc

is optional
type: complex
defined in this schema

activitystreams:bcc Type

One of the following conditions need to be fulfilled.

Condition 1

Any following options needs to be fulfilled.

Option 1

string

format: uri – Uniformous Resource Identifier (according to RFC3986)

Option 2

Object – https://ns.adobe.com/xdm/external/activity-streams-2/object

Option 3

Link – https://ns.adobe.com/xdm/external/activity-streams-2/link

Condition 2

Array type:

All items must be of the type: Unknown type anyOf.

{
  "items": {
    "anyOf": [
      {
        "type": "string",
        "format": "uri"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/object",
        "$linkVal": "Object",
        "$linkPath": "object.schema.md"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/link",
        "$linkVal": "Link",
        "$linkPath": "link.schema.md"
      }
    ],
    "type": "anyOf"
  },
  "type": "array"
}

activitystreams:bto

Identifies an Object that is part of the private primary audience of this Object. Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:bto

is optional
type: complex
defined in this schema

activitystreams:bto Type

One of the following conditions need to be fulfilled.

Condition 1

Any following options needs to be fulfilled.

Option 1

string

format: uri – Uniformous Resource Identifier (according to RFC3986)

Option 2

Object – https://ns.adobe.com/xdm/external/activity-streams-2/object

Option 3

Link – https://ns.adobe.com/xdm/external/activity-streams-2/link

Condition 2

Array type:

All items must be of the type: Unknown type anyOf.

{
  "items": {
    "anyOf": [
      {
        "type": "string",
        "format": "uri"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/object",
        "$linkVal": "Object",
        "$linkPath": "object.schema.md"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/link",
        "$linkVal": "Link",
        "$linkPath": "link.schema.md"
      }
    ],
    "type": "anyOf"
  },
  "type": "array"
}

activitystreams:cc

Identifies an Object that is part of the public secondary audience of this Object. Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:cc

is optional
type: complex
defined in this schema

activitystreams:cc Type

One of the following conditions need to be fulfilled.

Condition 1

Any following options needs to be fulfilled.

Option 1

string

format: uri – Uniformous Resource Identifier (according to RFC3986)

Option 2

Object – https://ns.adobe.com/xdm/external/activity-streams-2/object

Option 3

Link – https://ns.adobe.com/xdm/external/activity-streams-2/link

Condition 2

Array type:

All items must be of the type: Unknown type anyOf.

{
  "items": {
    "anyOf": [
      {
        "type": "string",
        "format": "uri"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/object",
        "$linkVal": "Object",
        "$linkPath": "object.schema.md"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/link",
        "$linkVal": "Link",
        "$linkPath": "link.schema.md"
      }
    ],
    "type": "anyOf"
  },
  "type": "array"
}

activitystreams:content

The content or textual representation of the Object encoded as a JSON string. By default, the value of content is HTML. The mediaType property can be used in the object to indicate a different content type. The content may be expressed using multiple language-tagged values. Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:content

is optional
type: complex
defined in this schema

activitystreams:content Type

One of the following conditions need to be fulfilled.

Condition 1

string

Condition 2

RDF Language Tagged String – https://ns.adobe.com/xdm/external/activity-streams-2/rdf-langstring

activitystreams:context

Identifies the context within which the object exists or an activity was performed. The notion of 'context' used is intentionally vague. The intended function is to serve as a means of grouping objects and activities that share a common originating context or purpose. An example could be all activities relating to a common project or event. Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:context

is optional
type: complex
defined in this schema

activitystreams:context Type

One of the following conditions need to be fulfilled.

Condition 1

Any following options needs to be fulfilled.

Option 1

string

format: uri – Uniformous Resource Identifier (according to RFC3986)

Option 2

Object – https://ns.adobe.com/xdm/external/activity-streams-2/object

Option 3

Link – https://ns.adobe.com/xdm/external/activity-streams-2/link

Condition 2

Array type:

All items must be of the type: Unknown type anyOf.

{
  "items": {
    "anyOf": [
      {
        "type": "string",
        "format": "uri"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/object",
        "$linkVal": "Object",
        "$linkPath": "object.schema.md"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/link",
        "$linkVal": "Link",
        "$linkPath": "link.schema.md"
      }
    ],
    "type": "anyOf"
  },
  "type": "array"
}

activitystreams:duration

XSD Duration

XSD Duration according to specification

activitystreams:duration

is optional
type: string
defined in this schema

activitystreams:duration Type

string

All instances must conform to this regular expression (test examples here):

^[-]?P(?!$)(?:\d+Y)?(?:\d+M)?(?:\d+D)?(?:T(?!$)(?:\d+H)?(?:\d+M)?(?:\d+(?:\.\d+)?S)?)?$

activitystreams:endTime

The date and time describing the actual or expected ending time of the object. When used with an Activity object, for instance, the endTime property specifies the moment the activity concluded or is expected to conclude. Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:endTime

is optional
type: string
defined in this schema

activitystreams:endTime Type

string

format: date-time – date and time (according to RFC 3339, section 5.6)

activitystreams:generator

Identifies the entity (e.g. an application) that generated the object. Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:generator

is optional
type: complex
defined in this schema

activitystreams:generator Type

One of the following conditions need to be fulfilled.

Condition 1

Any following options needs to be fulfilled.

Option 1

string

format: uri – Uniformous Resource Identifier (according to RFC3986)

Option 2

Object – https://ns.adobe.com/xdm/external/activity-streams-2/object

Option 3

Link – https://ns.adobe.com/xdm/external/activity-streams-2/link

Condition 2

Array type:

All items must be of the type: Unknown type anyOf.

{
  "items": {
    "anyOf": [
      {
        "type": "string",
        "format": "uri"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/object",
        "$linkVal": "Object",
        "$linkPath": "object.schema.md"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/link",
        "$linkVal": "Link",
        "$linkPath": "link.schema.md"
      }
    ],
    "type": "anyOf"
  },
  "type": "array"
}

activitystreams:icon

Indicates an entity that describes an icon for this object. The image should have an aspect ratio of one (horizontal) to one (vertical) and should be suitable for presentation at a small size. Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:icon

is optional
type: complex
defined in this schema

activitystreams:icon Type

One of the following conditions need to be fulfilled.

Condition 1

Any following options needs to be fulfilled.

Option 1

string

format: uri – Uniformous Resource Identifier (according to RFC3986)

Option 2

Image Document – https://ns.adobe.com/xdm/external/activity-streams-2/image

Option 3

Link – https://ns.adobe.com/xdm/external/activity-streams-2/link

Condition 2

Array type:

All items must be of the type: Unknown type anyOf.

{
  "items": {
    "anyOf": [
      {
        "type": "string",
        "format": "uri"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/image",
        "$linkVal": "Image Document",
        "$linkPath": "image.schema.md"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/link",
        "$linkVal": "Link",
        "$linkPath": "link.schema.md"
      }
    ],
    "type": "anyOf"
  },
  "type": "array"
}

activitystreams:image

Indicates an entity that describes an image for this object. Unlike the icon property, there are no aspect ratio or display size limitations assumed. Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:image

is optional
type: complex
defined in this schema

activitystreams:image Type

One of the following conditions need to be fulfilled.

Condition 1

Any following options needs to be fulfilled.

Option 1

string

format: uri – Uniformous Resource Identifier (according to RFC3986)

Option 2

Image Document – https://ns.adobe.com/xdm/external/activity-streams-2/image

Option 3

Link – https://ns.adobe.com/xdm/external/activity-streams-2/link

Condition 2

Array type:

All items must be of the type: Unknown type anyOf.

{
  "items": {
    "anyOf": [
      {
        "type": "string",
        "format": "uri"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/image",
        "$linkVal": "Image Document",
        "$linkPath": "image.schema.md"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/link",
        "$linkVal": "Link",
        "$linkPath": "link.schema.md"
      }
    ],
    "type": "anyOf"
  },
  "type": "array"
}

activitystreams:inReplyTo

Indicates one or more entities for which this object is considered a response. Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:inReplyTo

is optional
type: complex
defined in this schema

activitystreams:inReplyTo Type

One of the following conditions need to be fulfilled.

Condition 1

Any following options needs to be fulfilled.

Option 1

string

format: uri – Uniformous Resource Identifier (according to RFC3986)

Option 2

Object – https://ns.adobe.com/xdm/external/activity-streams-2/object

Option 3

Link – https://ns.adobe.com/xdm/external/activity-streams-2/link

Condition 2

Array type:

All items must be of the type: Unknown type anyOf.

{
  "items": {
    "anyOf": [
      {
        "type": "string",
        "format": "uri"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/object",
        "$linkVal": "Object",
        "$linkPath": "object.schema.md"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/link",
        "$linkVal": "Link",
        "$linkPath": "link.schema.md"
      }
    ],
    "type": "anyOf"
  },
  "type": "array"
}

activitystreams:location

Indicates one or more physical or logical locations associated with the object. Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:location

is optional
type: complex
defined in this schema

activitystreams:location Type

One of the following conditions need to be fulfilled.

Condition 1

Any following options needs to be fulfilled.

Option 1

string

format: uri – Uniformous Resource Identifier (according to RFC3986)

Option 2

Object – https://ns.adobe.com/xdm/external/activity-streams-2/object

Option 3

Link – https://ns.adobe.com/xdm/external/activity-streams-2/link

Condition 2

Array type:

All items must be of the type: Unknown type anyOf.

{
  "items": {
    "anyOf": [
      {
        "type": "string",
        "format": "uri"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/object",
        "$linkVal": "Object",
        "$linkPath": "object.schema.md"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/link",
        "$linkVal": "Link",
        "$linkPath": "link.schema.md"
      }
    ],
    "type": "anyOf"
  },
  "type": "array"
}

activitystreams:mediaType

MIME Media Type

When used on a Link, identifies the MIME media type of the referenced resource. When used on an Object, identifies the MIME media type of the value of the content property. If not specified, the content property is assumed to contain text/html content. Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:mediaType

is optional
type: string
defined in this schema

activitystreams:mediaType Type

string

All instances must conform to this regular expression (test examples here):

\w+\/[-.\w]+(?:\+[-.\w]+)?

activitystreams:name

A simple, human-readable, plain-text name for the object. HTML markup must not be included. The name may be expressed using multiple language-tagged values. Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:name

is optional
type: complex
defined in this schema

activitystreams:name Type

One of the following conditions need to be fulfilled.

Condition 1

string

Condition 2

RDF Language Tagged String – https://ns.adobe.com/xdm/external/activity-streams-2/rdf-langstring

activitystreams:preview

Identifies an entity that provides a preview of this object. Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:preview

is optional
type: complex
defined in this schema

activitystreams:preview Type

One of the following conditions need to be fulfilled.

Condition 1

Any following options needs to be fulfilled.

Option 1

string

format: uri – Uniformous Resource Identifier (according to RFC3986)

Option 2

Object – https://ns.adobe.com/xdm/external/activity-streams-2/object

Option 3

Link – https://ns.adobe.com/xdm/external/activity-streams-2/link

Condition 2

Array type:

All items must be of the type: Unknown type anyOf.

{
  "items": {
    "anyOf": [
      {
        "type": "string",
        "format": "uri"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/object",
        "$linkVal": "Object",
        "$linkPath": "object.schema.md"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/link",
        "$linkVal": "Link",
        "$linkPath": "link.schema.md"
      }
    ],
    "type": "anyOf"
  },
  "type": "array"
}

activitystreams:published

The date and time at which the object was published Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:published

is optional
type: string
defined in this schema

activitystreams:published Type

string

format: date-time – date and time (according to RFC 3339, section 5.6)

activitystreams:replies

Identifies a Collection containing objects considered to be responses to this object. Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:replies

is optional
type: Collection
defined in this schema

activitystreams:replies Type

Collection – https://ns.adobe.com/xdm/external/activity-streams-2/collection

activitystreams:startTime

The date and time describing the actual or expected starting time of the object. When used with an Activity object, for instance, the startTime property specifies the moment the activity began or is scheduled to begin. Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:startTime

is optional
type: string
defined in this schema

activitystreams:startTime Type

string

format: date-time – date and time (according to RFC 3339, section 5.6)

activitystreams:summary

A natural language summarization of the object encoded as HTML. Multiple language tagged summaries may be provided. Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:summary

is optional
type: complex
defined in this schema

activitystreams:summary Type

One of the following conditions need to be fulfilled.

Condition 1

string

Condition 2

RDF Language Tagged String – https://ns.adobe.com/xdm/external/activity-streams-2/rdf-langstring

activitystreams:tag

One or more 'tags' that have been associated with an objects. A tag can be any kind of Object. The key difference between attachment and tag is that the former implies association by inclusion, while the latter implies associated by reference. Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:tag

is optional
type: complex
defined in this schema

activitystreams:tag Type

One of the following conditions need to be fulfilled.

Condition 1

Any following options needs to be fulfilled.

Option 1

string

format: uri – Uniformous Resource Identifier (according to RFC3986)

Option 2

Object – https://ns.adobe.com/xdm/external/activity-streams-2/object

Option 3

Link – https://ns.adobe.com/xdm/external/activity-streams-2/link

Condition 2

Array type:

All items must be of the type: Unknown type anyOf.

{
  "items": {
    "anyOf": [
      {
        "type": "string",
        "format": "uri"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/object",
        "$linkVal": "Object",
        "$linkPath": "object.schema.md"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/link",
        "$linkVal": "Link",
        "$linkPath": "link.schema.md"
      }
    ],
    "type": "anyOf"
  },
  "type": "array"
}

activitystreams:to

Identifies an entity considered to be part of the public primary audience of an Object. Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:to

is optional
type: complex
defined in this schema

activitystreams:to Type

One of the following conditions need to be fulfilled.

Condition 1

Any following options needs to be fulfilled.

Option 1

string

format: uri – Uniformous Resource Identifier (according to RFC3986)

Option 2

Object – https://ns.adobe.com/xdm/external/activity-streams-2/object

Option 3

Link – https://ns.adobe.com/xdm/external/activity-streams-2/link

Condition 2

Array type:

All items must be of the type: Unknown type anyOf.

{
  "items": {
    "anyOf": [
      {
        "type": "string",
        "format": "uri"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/object",
        "$linkVal": "Object",
        "$linkPath": "object.schema.md"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/link",
        "$linkVal": "Link",
        "$linkPath": "link.schema.md"
      }
    ],
    "type": "anyOf"
  },
  "type": "array"
}

activitystreams:updated

The date and time at which the object was updated Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:updated

is optional
type: string
defined in this schema

activitystreams:updated Type

string

format: date-time – date and time (according to RFC 3339, section 5.6)

activitystreams:url

Identifies one or more links to representations of the object. Refer to the Activity Streams 2.0 Core document for a complete description.

activitystreams:url

is optional
type: complex
defined in this schema

activitystreams:url Type

One of the following conditions need to be fulfilled.

Condition 1

Any following options needs to be fulfilled.

Option 1

string

format: uri – Uniformous Resource Identifier (according to RFC3986)

Option 2

Link – https://ns.adobe.com/xdm/external/activity-streams-2/link

Condition 2

Array type:

All items must be of the type: Unknown type anyOf.

{
  "items": {
    "anyOf": [
      {
        "type": "string",
        "format": "uri"
      },
      {
        "$ref": "https://ns.adobe.com/xdm/external/activity-streams-2/link",
        "$linkVal": "Link",
        "$linkPath": "link.schema.md"
      }
    ],
    "type": "anyOf"
  },
  "type": "array"
}

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Object Schema

Schema Hierarchy

Object Example

Object Properties

@context

@context Type

Condition 1

Condition 2

@id

@id Type

@type

@type Type

Condition 1

Condition 2

activitystreams:attachment

activitystreams:attachment Type

Condition 1

Option 1

Option 2

Option 3

Condition 2

activitystreams:attributedTo

activitystreams:attributedTo Type

Condition 1

Option 1

Option 2

Option 3

Condition 2

activitystreams:audience

activitystreams:audience Type

Condition 1

Option 1

Option 2

Option 3

Condition 2

activitystreams:bcc

activitystreams:bcc Type

Condition 1

Option 1

Option 2

Option 3

Condition 2

activitystreams:bto

activitystreams:bto Type

Condition 1

Option 1

Option 2

Option 3

Condition 2

activitystreams:cc

activitystreams:cc Type

Condition 1

Option 1

Option 2

Option 3

Condition 2

activitystreams:content

activitystreams:content Type

Condition 1

Condition 2

activitystreams:context

activitystreams:context Type

Condition 1

Option 1

Option 2

Option 3

Condition 2

activitystreams:duration

XSD Duration

activitystreams:duration Type

activitystreams:endTime

activitystreams:endTime Type

activitystreams:generator

activitystreams:generator Type