reefdb 0.1.0

ReefDB is a minimalistic, in-memory and on-disk database management system written in Rust, implementing basic SQL query capabilities and full-text search.
Documentation 
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use crate::{sql::column_def::ColumnDef, sql::{data_value::DataValue, data_type::DataType}};

pub mod disk;
pub mod memory;


pub trait Storage {
    type NewArgs;
    fn new(args: Self::NewArgs) -> Self;
    fn insert_table(
        &mut self,
        table_name: String,
        columns: Vec<ColumnDef>,
        row: Vec<Vec<DataValue>>,
    );

    fn get_table(&mut self, table_name: &str)
        -> Option<&mut (Vec<ColumnDef>, Vec<Vec<DataValue>>)>;

    fn get_fts_columns(&self, table_name: &str) -> Vec<String> {
        if let Some((schema, _)) = self.get_table_ref(table_name) {
            schema
                .iter()
                .filter(|column_def| column_def.data_type == DataType::FTSText)
                .map(|column_def| column_def.name.clone())
                .collect()
        } else {
            vec![] // Return an empty Vec if the table doesn't exist
        }
    }
    fn get_table_ref(&self, table_name: &str) -> Option<&(Vec<ColumnDef>, Vec<Vec<DataValue>>)>;
    fn push_value(&mut self, table_name: &str, row: Vec<DataValue>) -> usize;

    fn update_table(
        &mut self,
        table_name: &str,
        updates: Vec<(String, DataValue)>,
        where_clause: Option<(String, DataValue)>,
    ) -> usize;

    fn delete_table(
        &mut self,
        table_name: &str,
        where_clause: Option<(String, DataValue)>,
    ) -> usize;

    fn table_exists(&self, table_name: &str) -> bool;

    fn get_schema(&mut self, table_name: &str) -> Option<&mut Vec<ColumnDef>> {
        self.get_table(table_name).map(|(schema, _)| schema)
    }

    // non mutable
    fn get_schema_ref(&self, table_name: &str) -> Option<&Vec<ColumnDef>> {
        self.get_table_ref(table_name).map(|(schema, _)| schema)
    }
}