Struct Validator 

pub struct Validator { /* private fields */ }

Validates query elements against known schema and provides suggestions.

Implementations

impl Validator

pub fn new() -> Self

Create a new Validator with known tables and columns.

pub fn add_table(&mut self, table: &str, cols: &[&str])

Register a table and its columns.

pub fn add_table_name(&mut self, table: &str)

Register a table name only (no column metadata).

Useful for views discovered from schema text where build-time parser does not infer projected columns. Table existence is validated, while column-level checks are skipped.

pub fn add_table_with_types(&mut self, table: &str, cols: &[(&str, &str)])

Register a table with column types (for future type validation).

Arguments

• table — Table name to register.
• cols — Slice of (column_name, column_type) pairs.

pub fn table_names(&self) -> &[String]

Get list of all table names (for autocomplete).

pub fn column_names(&self, table: &str) -> Option<&Vec<String>>

Get column names for a table (for autocomplete).

pub fn table_exists(&self, table: &str) -> bool

Check if a table exists.

pub fn validate_table(&self, table: &str) -> Result<(), ValidationError>

Check if a table exists. If not, returns structured error with suggestion.

pub fn validate_column( &self, table: &str, column: &str, ) -> Result<(), ValidationError>

Check if a column exists in a table. If not, returns a structured error.

Arguments

• table — Table to look up.
• column — Column name to validate.

pub fn get_column_type(&self, table: &str, column: &str) -> Option<&String>

Get column type for a table.column

pub fn validate_value_type( &self, table: &str, column: &str, value: &Value, ) -> Result<(), ValidationError>

Validate that a Value’s type matches the expected column type. Returns Ok(()) if compatible, Err with TypeMismatch if not.

pub fn validate_command(&self, cmd: &Qail) -> ValidationResult

Validate an entire Qail against the schema.

pub fn validate_table_legacy(&self, table: &str) -> Result<(), String>

👎Deprecated:

Use validate_table() which returns ValidationError

Legacy: validate_table that returns String error

pub fn validate_column_legacy( &self, table: &str, column: &str, ) -> Result<(), String>

👎Deprecated:

Use validate_column() which returns ValidationError

Legacy: validate_column that returns String error

Trait Implementations

impl Clone for Validator

fn clone(&self) -> Validator

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Validator

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

Formats the value using the given formatter.

impl Default for Validator

fn default() -> Self

Returns the “default value” for a type.