Slot: value_presence

if PRESENT then a value must be present (for lists there must be at least one value). If ABSENT then a value must be absent (for lists, must be empty)

URI: linkml:value_presence Alias: value_presence

Inheritance

• list_value_specification_constant
  • value_presence

Applicable Classes

Name	Description	Modifies Slot
AnonymousSlotExpression		no
SlotExpression	an expression that constrains the range of values a slot can take	no
SlotDefinition	an element that describes how instances are related to other instances	no

Properties

Type and Range

Property	Value
Range	PresenceEnum
Domain	SlotDefinition
Domain Of	SlotExpression

Cardinality and Requirements

Property	Value
### Slot Characteristics

Property	Value
Inherited	Yes

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

Administrative Metadata

Status: unstable

Schema Source

• from schema: https://w3id.org/linkml/meta

Mappings

Mapping Type	Mapped Value
self	linkml:value_presence
native	linkml:value_presence

LinkML Source

name: value_presence
description: if PRESENT then a value must be present (for lists there must be at least
  one value). If ABSENT 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