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ResultMap

sz_orm_core::result_map

Struct ResultMap 

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pub struct ResultMap {
    pub id: String,
    pub type_name: String,
    pub id_mappings: Vec<Mapping>,
    pub result_mappings: Vec<Mapping>,
    pub associations: Vec<NestedAssociation>,
    pub collections: Vec<NestedCollection>,
    pub discriminator: Option<Discriminator>,
}
Expand description

完整结果映射规则

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§id: String

唯一 id

§type_name: String

目标类型名（如 “User”）

§id_mappings: Vec<Mapping>

主键字段映射（用于唯一性判断、collection 聚合）

§result_mappings: Vec<Mapping>

普通字段映射

§associations: Vec<NestedAssociation>

一对一嵌套映射

§collections: Vec<NestedCollection>

一对多嵌套映射

§discriminator: Option<Discriminator>

多态鉴别器

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impl ResultMap

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pub fn new(id: impl Into<String>, type_name: impl Into<String>) -> Self

创建 ResultMap

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pub fn add_id_mapping(&mut self, mapping: Mapping) -> &mut Self

添加主键映射

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pub fn add_result_mapping(&mut self, mapping: Mapping) -> &mut Self

添加普通字段映射

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pub fn add_association(&mut self, assoc: NestedAssociation) -> &mut Self

添加 association 嵌套

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pub fn add_collection(&mut self, coll: NestedCollection) -> &mut Self

添加 collection 嵌套

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pub fn set_discriminator(&mut self, disc: Discriminator) -> &mut Self

设置 discriminator

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pub fn sub_map_ids(&self) -> Vec<String>

收集本 ResultMap 直接引用的所有 sub-ResultMap id

Trait Implementations§

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impl Clone for ResultMap

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fn clone(&self) -> ResultMap

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 ResultMap

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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 PartialEq for ResultMap

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fn eq(&self, other: &ResultMap) -> 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 ResultMap

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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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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.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more