Struct SecretaryContext 

pub struct SecretaryContext<State> { /* private fields */ }

秘书上下文

在秘书处理过程中传递状态和共享资源。

类型参数

• State: 用户定义的状态类型

示例

struct MyState {
    counter: u32,
}

let mut ctx = SecretaryContext::new(MyState { counter: 0 });
ctx.state_mut().counter += 1;
ctx.set_metadata("key", "value");

Implementations

impl<State> SecretaryContext<State>

pub fn new(state: State) -> SecretaryContext<State>

创建新的上下文

pub fn state(&self) -> &State

获取状态引用

pub fn state_mut(&mut self) -> &mut State

获取状态可变引用

pub fn set_state(&mut self, state: State)

替换状态

pub fn set_metadata<T>(&mut self, key: impl Into<String>, value: T)

where T: Any + Send + Sync,

设置元数据

pub fn get_metadata<T>(&self, key: &str) -> Option<&T>

where T: Any + Send + Sync,

获取元数据

pub fn remove_metadata(&mut self, key: &str) -> bool

移除元数据

pub fn register_resource<T>(&mut self, key: impl Into<String>, resource: Arc<T>)

where T: Any + Send + Sync,

注册共享资源

pub fn get_resource<T>(&self, key: &str) -> Option<Arc<T>>

where T: Any + Send + Sync,

获取共享资源

pub fn has_resource(&self, key: &str) -> bool

检查资源是否存在