Enum PropertyWriteCapability 

#[non_exhaustive]
pub enum PropertyWriteCapability {
    ReadOnly,
    Always,
    WhenOutOfService,
    WhenCommandOwner,
    Through(PropertyIdentifier),
}

The write capability implemented by an object’s property-write routes.

A conditional capability remains writable for PICS purposes even when the current object state causes a particular request to be denied.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

ReadOnly

No network property-write route is implemented.

Always

The property-write route is available whatever Out_Of_Service and command ownership say. The object’s own checks may still refuse a value, or a write in some state: an Audit Log refuses a Buffer_Size write while Log_Enable is TRUE, for example.

WhenOutOfService

The property-write route is available only while Out_Of_Service is true.

WhenCommandOwner

Correction is restricted to the writer the value came from: the original command owner at that priority, or for a Present_Value with no priority array, its last writer (#1552).

Through(PropertyIdentifier)

The property has no write route of its own, but a write of the named property changes it too: State_Text written whole, or its size at index 0, sets a multi-state object’s Number_Of_States (#1443). A WriteProperty naming this property itself is refused, so it doesn’t count as writable.

Implementations

impl PropertyWriteCapability

pub const fn is_writable(self) -> bool

Whether a network property-write route naming this property is implemented. Self::Through has none.

pub const fn written_through(self) -> Option<PropertyIdentifier>

The property whose writes change this one, for Self::Through.

Trait Implementations

impl Clone for PropertyWriteCapability

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for PropertyWriteCapability

impl Debug for PropertyWriteCapability

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for PropertyWriteCapability

impl PartialEq for PropertyWriteCapability

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for PropertyWriteCapability