Struct Discriminator 

pub struct Discriminator {
    pub column: String,
    pub cases: Vec<DiscriminatorCase>,
}

多态鉴别器

Fields

column: String

鉴别列

cases: Vec<DiscriminatorCase>

case 列表

Implementations

impl Discriminator

pub fn new(column: impl Into<String>) -> Discriminator

创建鉴别器

pub fn add_case(&mut self, case: DiscriminatorCase) -> &mut Discriminator

添加 case

pub fn resolve(&self, value: &Value) -> Option<&str>

根据值查找对应 ResultMap id

Trait Implementations

impl Clone for Discriminator

fn clone(&self) -> Discriminator

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Discriminator

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

Formats the value using the given formatter.

impl PartialEq for Discriminator

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Discriminator