Struct PoolBuilder 

pub struct PoolBuilder { /* private fields */ }

builder type for connection pool

Implementations

impl PoolBuilder

pub fn capacity(self, cap: usize) -> Self

set capacity. pool would spawn up to amount of capacity concurrent connections to database.

Default

capacity default to 1

pub fn cache_size(self, size: usize) -> Self

set statment cache size. every connection in pool would keep a set of prepared statement cache to speed up repeated query

Default

cache_size default to 16

pub fn connector<C>(self, connector: C) -> Self

where C: Connect + 'static,

set connector type for establishing connection to database. C must impl Connect trait

pub fn build(self) -> Result<Pool, Error>

try convert builder to a connection pool instance.