Trait StatementDispatchHost 

pub trait StatementDispatchHost: MutationHost {
    type NavigationPlan;

    // Required methods
    fn dispatch_ddl_fence_already_held(&self) -> bool;
    fn dispatch_authorize_statement(
        &self,
        statement: &Statement,
        context: &ExecutionContext,
    ) -> Result<()>;
    fn dispatch_bind_navigation(
        &self,
        statement: &Statement,
    ) -> Result<Option<Self::NavigationPlan>>;
    fn dispatch_select(
        &self,
        statement: &SelectStatement,
        navigation: Option<&Self::NavigationPlan>,
        context: &ExecutionContext,
    ) -> Result<Box<dyn QueryResult>>;
    fn dispatch_call(
        &self,
        statement: &CallStatement,
        context: &ExecutionContext,
    ) -> Result<Box<dyn QueryResult>>;
    fn dispatch_set(
        &self,
        statement: &SetStatement,
        context: &ExecutionContext,
    ) -> Result<Box<dyn QueryResult>>;
    fn dispatch_show_tables(
        &self,
        statement: &ShowTablesStatement,
        context: &ExecutionContext,
    ) -> Result<Box<dyn QueryResult>>;
    fn dispatch_show_views(
        &self,
        statement: &ShowViewsStatement,
        context: &ExecutionContext,
    ) -> Result<Box<dyn QueryResult>>;
    fn dispatch_show_create_table(
        &self,
        statement: &ShowCreateTableStatement,
        context: &ExecutionContext,
    ) -> Result<Box<dyn QueryResult>>;
    fn dispatch_show_create_view(
        &self,
        statement: &ShowCreateViewStatement,
        context: &ExecutionContext,
    ) -> Result<Box<dyn QueryResult>>;
    fn dispatch_show_indexes(
        &self,
        statement: &ShowIndexesStatement,
        context: &ExecutionContext,
    ) -> Result<Box<dyn QueryResult>>;
    fn dispatch_describe(
        &self,
        statement: &DescribeStatement,
        context: &ExecutionContext,
    ) -> Result<Box<dyn QueryResult>>;
    fn dispatch_pragma(
        &self,
        statement: &PragmaStatement,
        context: &ExecutionContext,
    ) -> Result<Box<dyn QueryResult>>;
    fn dispatch_expression(
        &self,
        statement: &ExpressionStatement,
        context: &ExecutionContext,
    ) -> Result<Box<dyn QueryResult>>;
    fn dispatch_explain(
        &self,
        statement: &ExplainStatement,
        context: &ExecutionContext,
    ) -> Result<Box<dyn QueryResult>>;
    fn dispatch_analyze(
        &self,
        statement: &AnalyzeStatement,
        context: &ExecutionContext,
    ) -> Result<Box<dyn QueryResult>>;
    fn dispatch_vacuum(
        &self,
        statement: &VacuumStatement,
        context: &ExecutionContext,
    ) -> Result<Box<dyn QueryResult>>;
}

Internal dispatch seam between statement coordination and concrete owners.

Required Associated Types

type NavigationPlan

Required Methods

fn dispatch_ddl_fence_already_held(&self) -> bool

fn dispatch_authorize_statement( &self, statement: &Statement, context: &ExecutionContext, ) -> Result<()>

fn dispatch_bind_navigation( &self, statement: &Statement, ) -> Result<Option<Self::NavigationPlan>>

fn dispatch_select( &self, statement: &SelectStatement, navigation: Option<&Self::NavigationPlan>, context: &ExecutionContext, ) -> Result<Box<dyn QueryResult>>

fn dispatch_call( &self, statement: &CallStatement, context: &ExecutionContext, ) -> Result<Box<dyn QueryResult>>

fn dispatch_set( &self, statement: &SetStatement, context: &ExecutionContext, ) -> Result<Box<dyn QueryResult>>

fn dispatch_show_tables( &self, statement: &ShowTablesStatement, context: &ExecutionContext, ) -> Result<Box<dyn QueryResult>>

fn dispatch_show_views( &self, statement: &ShowViewsStatement, context: &ExecutionContext, ) -> Result<Box<dyn QueryResult>>

fn dispatch_show_create_table( &self, statement: &ShowCreateTableStatement, context: &ExecutionContext, ) -> Result<Box<dyn QueryResult>>

fn dispatch_show_create_view( &self, statement: &ShowCreateViewStatement, context: &ExecutionContext, ) -> Result<Box<dyn QueryResult>>

fn dispatch_show_indexes( &self, statement: &ShowIndexesStatement, context: &ExecutionContext, ) -> Result<Box<dyn QueryResult>>

fn dispatch_describe( &self, statement: &DescribeStatement, context: &ExecutionContext, ) -> Result<Box<dyn QueryResult>>

fn dispatch_pragma( &self, statement: &PragmaStatement, context: &ExecutionContext, ) -> Result<Box<dyn QueryResult>>

fn dispatch_expression( &self, statement: &ExpressionStatement, context: &ExecutionContext, ) -> Result<Box<dyn QueryResult>>

fn dispatch_explain( &self, statement: &ExplainStatement, context: &ExecutionContext, ) -> Result<Box<dyn QueryResult>>

fn dispatch_analyze( &self, statement: &AnalyzeStatement, context: &ExecutionContext, ) -> Result<Box<dyn QueryResult>>

fn dispatch_vacuum( &self, statement: &VacuumStatement, context: &ExecutionContext, ) -> Result<Box<dyn QueryResult>>

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl StatementDispatchHost for Executor

type NavigationPlan = ReferenceExpandPlan