Struct NestedAssociation 

pub struct NestedAssociation {
    pub property: String,
    pub result_map: String,
    pub column_prefix: Option<String>,
    pub not_null_column: Option<String>,
}

一对一嵌套映射（association）

Fields

property: String

目标属性名

result_map: String

引用的 ResultMap id

column_prefix: Option<String>

列前缀（用于 JOIN 场景隔离不同实体列）

not_null_column: Option<String>

notNullColumn：仅当该列非 NULL 时才填充（避免 LEFT JOIN NULL 行被填充）

Implementations

impl NestedAssociation

pub fn new(property: impl Into<String>, result_map: impl Into<String>) -> Self

创建嵌套 association

pub fn with_prefix(self, prefix: impl Into<String>) -> Self

设置列前缀

pub fn with_not_null_column(self, column: impl Into<String>) -> Self

设置 notNullColumn

Trait Implementations

impl Clone for NestedAssociation

fn clone(&self) -> NestedAssociation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NestedAssociation

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

Formats the value using the given formatter.

impl Eq for NestedAssociation

impl PartialEq for NestedAssociation

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for NestedAssociation