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@ -98,7 +98,7 @@ pub enum DbInstance {
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impl DbInstance {
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/// Create a DbInstance, which is a dispatcher for various concrete implementations.
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/// The valid kinds are:
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/// The valid engines are:
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///
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/// * `mem`
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/// * `sqlite`
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@ -107,14 +107,14 @@ impl DbInstance {
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/// * `tikv`
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///
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/// assuming all features are enabled during compilation. Otherwise only
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/// some of the kinds are available. The `mem` kind is always available.
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/// some of the engines are available. The `mem` kind is always available.
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///
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/// `path` is ignored for `mem` and `tikv` kinds.
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/// `options` is ignored for every kind except `tikv`.
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/// `path` is ignored for `mem` and `tikv` engines.
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/// `options` is ignored for every engine except `tikv`.
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#[allow(unused_variables)]
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pub fn new(kind: &str, path: &str, options: &str) -> Result<Self> {
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pub fn new(engine: &str, path: &str, options: &str) -> Result<Self> {
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let options = if options.is_empty() { "{}" } else { options };
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Ok(match kind {
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Ok(match engine {
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"mem" => Self::Mem(new_cozo_mem()?),
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#[cfg(feature = "storage-sqlite")]
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"sqlite" => Self::Sqlite(new_cozo_sqlite(path.to_string())?),
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@ -133,19 +133,19 @@ impl DbInstance {
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let opts: TiKvOpts = serde_json::from_str(options).into_diagnostic()?;
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Self::TiKv(new_cozo_tikv(opts.end_points.clone(), opts.optimistic)?)
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}
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kind => bail!(
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"database kind '{}' not supported (maybe not compiled in)",
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kind
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k => bail!(
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"database engine '{}' not supported (maybe not compiled in)",
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k
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),
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})
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}
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/// Same as [Self::new], but inputs and error messages are all in strings
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pub fn new_with_str(
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kind: &str,
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engine: &str,
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path: &str,
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options: &str,
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) -> std::result::Result<Self, String> {
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Self::new(kind, path, options).map_err(|err| err.to_string())
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Self::new(engine, path, options).map_err(|err| err.to_string())
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}
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/// Dispatcher method. See [crate::Db::run_script].
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pub fn run_script(
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Ziyang Hu
2 years ago