Struct PoolModeConfig 

pub struct PoolModeConfig {
    pub default_mode: PoolingMode,
    pub max_pool_size: u32,
    pub min_idle: u32,
    pub idle_timeout_secs: u64,
    pub max_lifetime_secs: u64,
    pub acquire_timeout_secs: u64,
    pub reset_query: String,
    pub prepared_statement_mode: PreparedStatementMode,
    pub test_on_acquire: bool,
    pub validation_query: String,
    pub queue_timeout_secs: u64,
    pub max_queue_size: u32,
}

Connection pool mode configuration

Fields

default_mode: PoolingMode

Default pooling mode for new connections

max_pool_size: u32

Maximum connections in the pool per node

min_idle: u32

Minimum idle connections to maintain per node

idle_timeout_secs: u64

Idle connection timeout (seconds)

max_lifetime_secs: u64

Maximum connection lifetime (seconds)

acquire_timeout_secs: u64

Timeout for acquiring a connection (seconds)

reset_query: String

SQL to reset connection state when returning to pool

prepared_statement_mode: PreparedStatementMode

Prepared statement handling mode

test_on_acquire: bool

Whether to validate connections on acquire

validation_query: String

Validation query

queue_timeout_secs: u64

Connection queue timeout when pool is exhausted (seconds)

max_queue_size: u32

Maximum queue size when pool is exhausted (0 = unlimited)

Implementations

impl PoolModeConfig

pub fn session_mode() -> Self

Create config for session mode (safest defaults)

pub fn transaction_mode() -> Self

Create config for transaction mode (balanced)

pub fn statement_mode() -> Self

Create config for statement mode (most aggressive)

pub fn idle_timeout(&self) -> Duration

Get idle timeout as Duration

pub fn max_lifetime(&self) -> Duration

Get max lifetime as Duration

pub fn acquire_timeout(&self) -> Duration

Get acquire timeout as Duration

pub fn queue_timeout(&self) -> Duration

Get queue timeout as Duration

pub fn validate(&self) -> Result<(), String>

Validate configuration

pub fn merge(&mut self, other: &PoolModeConfig)

Apply overrides from another config (for merging)

Trait Implementations

impl Clone for PoolModeConfig

fn clone(&self) -> PoolModeConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PoolModeConfig

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

Formats the value using the given formatter.

impl Default for PoolModeConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for PoolModeConfig

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for PoolModeConfig

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.