Slot: value_presence
if true then a value must be present (for lists there must be at least one value). If false then a value must be absent (for lists, must be empty)
Inheritance
- list_value_specification_constant
- value_presence
Applicable Classes
| Name | Description | Modifies Slot |
|---|---|---|
| SlotExpression | an expression that constrains the range of values a slot can take | no |
| AnonymousSlotExpression | no | |
| SlotDefinition | an element that describes how instances are related to other instances | no |
Properties
- Range: PresenceEnum
Comments
- if set to true this has the same effect as required=true. In contrast, required=false allows a value to be present
Identifier and Mapping Information
Schema Source
- from schema: https://w3id.org/linkml/meta
LinkML Source
name: value_presence
description: if true then a value must be present (for lists there must be at least
one value). If false then a value must be absent (for lists, must be empty)
comments:
- if set to true this has the same effect as required=true. In contrast, required=false
allows a value to be present
from_schema: https://w3id.org/linkml/meta
status: unstable
rank: 1000
is_a: list_value_specification_constant
domain: slot_definition
inherited: true
alias: value_presence
domain_of:
- slot_expression
range: presence_enum