pub struct DatabaseManager { /* private fields */ }Expand description
DuckDB 数据库管理器 - 针对并发特性优化
设计原则:
- 文件数据库:每个操作创建新连接,天然支持并发读
- 内存数据库:使用单一连接+Mutex,确保数据一致性
- 写操作:串行执行,避免write-write conflict
- 重试机制:检测冲突并实现指数退避重试
Implementations§
Source§impl DatabaseManager
impl DatabaseManager
Sourcepub async fn new_memory() -> Result<Self>
pub async fn new_memory() -> Result<Self>
创建内存数据库管理器(主要用于测试)
Sourcepub async fn init_database(&self) -> Result<()>
pub async fn init_database(&self) -> Result<()>
显式初始化数据库(只应在 nuwax-cli init 时调用)
Sourcepub async fn read_with_retry<F, R>(&self, operation: F) -> Result<R>
pub async fn read_with_retry<F, R>(&self, operation: F) -> Result<R>
并发读操作(文件数据库支持真正的并发)
Sourcepub async fn write_with_retry<F, R>(&self, operation: F) -> Result<R>
pub async fn write_with_retry<F, R>(&self, operation: F) -> Result<R>
并发写操作(确保写入一致性)
Sourcepub async fn batch_write_with_retry<F, R>(&self, operations: F) -> Result<R>
pub async fn batch_write_with_retry<F, R>(&self, operations: F) -> Result<R>
批量写操作(事务中执行多个写操作) 注意:这个方法接受一个闭包,该闭包会在事务上下文中执行
Sourcepub async fn initialize_schema(&self) -> Result<()>
pub async fn initialize_schema(&self) -> Result<()>
初始化数据库表结构
Sourcepub fn get_connection_stats(&self) -> ConnectionStats
pub fn get_connection_stats(&self) -> ConnectionStats
获取连接统计信息
Sourcepub async fn health_check(&self) -> Result<HealthStatus>
pub async fn health_check(&self) -> Result<HealthStatus>
健康检查
Trait Implementations§
Source§impl Clone for DatabaseManager
impl Clone for DatabaseManager
Source§fn clone(&self) -> DatabaseManager
fn clone(&self) -> DatabaseManager
Returns a duplicate of the value. Read more
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moreAuto Trait Implementations§
impl Freeze for DatabaseManager
impl !RefUnwindSafe for DatabaseManager
impl Send for DatabaseManager
impl Sync for DatabaseManager
impl Unpin for DatabaseManager
impl UnsafeUnpin for DatabaseManager
impl !UnwindSafe for DatabaseManager
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