Struct QueryAnalyzer 

pub struct QueryAnalyzer;

Analyzes compiled GraphQL queries to extract entity constraints.

This analyzer examines the query definition and SQL string to determine:

• Which entity type the query filters on
• How many entities it typically returns
• Whether it has WHERE clause constraints

Implementations

impl QueryAnalyzer

pub fn new() -> Self

Create new query analyzer.

pub fn analyze_query( &self, query_def: &IRQuery, query_str: &str, ) -> Result<QueryEntityProfile>

Analyze a compiled query to extract entity constraints.

Arguments

• query_def - The compiled query definition
• query_str - The query SQL string

Returns

QueryEntityProfile describing the query’s entity dependencies

Examples

let profile = analyzer.analyze_query(query_def, "SELECT * FROM users WHERE id = ?")?;
assert_eq!(profile.entity_type, Some("User"));
assert_eq!(profile.cardinality, QueryCardinality::Single);

Trait Implementations

impl Clone for QueryAnalyzer

fn clone(&self) -> QueryAnalyzer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QueryAnalyzer

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

Formats the value using the given formatter.

impl Default for QueryAnalyzer

fn default() -> Self

Returns the “default value” for a type.