Enum MutationResult 

pub enum MutationResult<E: EntityKind> {
    Count {
        row_count: u32,
    },
    Entity(E),
    Entities(Vec<E>),
}

MutationResult

Unified facade result for authored write operations. This keeps insert, create, update, replace, structural mutation, batch mutation, and count-first delete under one public result family instead of exposing separate single-row, batch-row, and bare-count payload types.

Variants

Count

Fields

row_count: u32

Entity(E)

Entities(Vec<E>)

Implementations

impl<E: EntityKind> MutationResult<E>

pub const fn from_count(row_count: u32) -> Self

Construct one count-only mutation result.

pub const fn from_entity(entity: E) -> Self

Construct one single-entity mutation result.

pub const fn from_entities(entities: Vec<E>) -> Self

Construct one multi-entity mutation result.

pub fn from_core_batch(inner: CoreWriteBatchResponse<E>) -> Self

Construct one multi-entity mutation result from the core batch surface.

pub fn row_count(&self) -> u32

Return the number of rows represented by this mutation result.

pub fn count(&self) -> u32

Return the number of rows represented by this mutation result.

pub fn is_empty(&self) -> bool

Return whether this result contains no rows.

pub fn exists(&self) -> bool

Return whether this result contains at least one row.

pub fn entity(self) -> Result<E, Error>

Consume and return exactly one entity.

pub fn entities(self) -> Result<Vec<E>, Error>

Consume and return all entities represented by this result.

impl<E: EntityKind + EntityValue> MutationResult<E>

pub fn id(&self) -> Result<Id<E>, Error>

Borrow exactly one primary identity from this mutation result.

pub fn ids(&self) -> Result<Vec<Id<E>>, Error>

Borrow all primary identities from this mutation result.

Trait Implementations

impl<E: Debug + EntityKind> Debug for MutationResult<E>

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

Formats the value using the given formatter.