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AttributeDefinition

Struct AttributeDefinition 

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pub struct AttributeDefinition {
    pub group: Option<String>,
    pub name: String,
    pub value_type: ValueType,
    pub cardinality: Cardinality,
    pub unique: Option<Unique>,
    pub indexed: bool,
    pub component: bool,
    pub no_history: bool,
}
Expand description

One normalized attribute declaration, independent of its source syntax.

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§group: Option<String>

Optional authoring group, mapped to the keyword namespace.

§name: String

Attribute name within its group, or its complete unnamespaced name.

§value_type: ValueType

Stored value type.

§cardinality: Cardinality

Whether entities may hold one or many values for the attribute.

§unique: Option<Unique>

Optional uniqueness behavior.

§indexed: bool

Whether the attribute requests AVET coverage.

§component: bool

Whether a reference is a component of its parent.

§no_history: bool

Whether history storage is disabled for the attribute.

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impl AttributeDefinition

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pub fn ident(&self) -> Keyword

Returns the canonical Corium keyword ident.

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pub fn to_edn(&self) -> Edn

Converts the declaration to the existing Datomic-style EDN schema form.

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impl Clone for AttributeDefinition

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fn clone(&self) -> AttributeDefinition

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for AttributeDefinition

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

Formats the value using the given formatter. Read more
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impl Eq for AttributeDefinition

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impl PartialEq for AttributeDefinition

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl StructuralPartialEq for AttributeDefinition

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.