Struct Context 

pub struct Context {
    pub pool_store: PoolStore,
    pub locale: String,
    pub watermark_map: HashMap<u64, u64>,
}

The engine context holding config and pool data.

Deliberately not Clone: pool_store holds ~2.8 MB across 151 pools, so a Context::clone() would be a silent deep copy of tens of thousands of Strings. Nothing in the crate ever clones a Context — pass &Context (the pattern already used throughout pipeline.rs/entity_gen.rs/column_gen.rs) or wrap it in Arc if a genuine shared-ownership need comes up.

Fields

pool_store: PoolStore

locale: String

watermark_map: HashMap<u64, u64>

Implementations

impl Context

pub fn new(domain: &str, locale: &str, pools_dir: &str) -> Result<Self, String>

Build a Context from a domain name + locale + path to pools directory.

pub fn enable_watermark(&mut self, domain: &str, size: usize, seed: u64)

Enable watermarking by computing per-column tags from the pipeline config.

pub fn watermark_3digits(&self, tag: u64) -> u64

Return the watermark mask for a given column tag (last 3 digits, 0..999).

pub fn watermark_2digits(&self, tag: u64) -> u64

Return the watermark mask for a given column tag (last 2 digits, 0..99).

Trait Implementations

impl Debug for Context

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

Formats the value using the given formatter.