Struct SimulationDatabase 

pub struct SimulationDatabase {
    pub records: Vec<SimulationRecord>,
    pub file_path: String,
}

In-memory database of simulation records with CSV/JSON persistence.

Fields

records: Vec<SimulationRecord>

All stored simulation records.

file_path: String

Path to the backing CSV file (informational; used by save/load helpers).

Implementations

impl SimulationDatabase

pub fn new(file_path: impl Into<String>) -> Self

Create a new, empty database associated with the given file path.

pub fn add_record(&mut self, record: SimulationRecord)

Append a record to the database.

pub fn find_by_id(&self, id: &str) -> Option<&SimulationRecord>

Find a record by its unique id, returning a reference or None.

pub fn query_range( &self, param: &str, lo: f64, hi: f64, ) -> Vec<&SimulationRecord>

Return all records where param lies in the inclusive range [lo, hi].

pub fn query_time_range(&self, t_lo: u64, t_hi: u64) -> Vec<&SimulationRecord>

Return all records whose timestamp falls in [t_lo, t_hi].

pub fn delete_by_id(&mut self, id: &str) -> usize

Delete all records matching the given id. Returns the number of records removed.

pub fn save_to_csv(&self) -> String

Serialize all records to a CSV string.

Format: id,timestamp,key=value;…,metakey=metaval;…

pub fn load_from_csv(&mut self, s: &str)

Populate the database by parsing a CSV string produced by save_to_csv.

Clears existing records before loading.

pub fn statistics(&self, param: &str) -> (f64, f64, f64)

Compute (min, max, mean) for the named parameter across all records that contain it. Returns (0.0, 0.0, 0.0) if no records match.

pub fn export_json(&self) -> String

Export all records as a compact JSON string.

pub fn import_json_ids(&mut self, json: &str)

Import records from a minimal JSON array string as produced by export_json. Only the id and timestamp fields are parsed in this lightweight implementation; full parameter parsing requires a proper JSON library.

pub fn len(&self) -> usize

Return the total number of records.

pub fn is_empty(&self) -> bool

Return true if the database holds no records.

Trait Implementations

impl Debug for SimulationDatabase

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

Formats the value using the given formatter.

impl Default for SimulationDatabase

fn default() -> SimulationDatabase

Returns the “default value” for a type.