Trait DynExprVTable 

pub trait DynExprVTable:
    'static
    + Send
    + Sync
    + Sealed {
    // Required methods
    fn as_any(&self) -> &dyn Any;
    fn id(&self) -> ExprId;
    fn serialize(&self, instance: &dyn Any) -> VortexResult<Option<Vec<u8>>>;
    fn deserialize(
        &self,
        metadata: &[u8],
    ) -> VortexResult<Option<Arc<dyn Any + Send + Sync>>>;
    fn child_name(&self, instance: &dyn Any, child_idx: usize) -> ChildName;
    fn validate(&self, expression: &Expression) -> VortexResult<()>;
    fn fmt_sql(&self, expression: &Expression, f: &mut Formatter<'_>) -> Result;
    fn fmt_data(&self, instance: &dyn Any, f: &mut Formatter<'_>) -> Result;
    fn return_dtype(
        &self,
        expression: &Expression,
        scope: &DType,
    ) -> VortexResult<DType>;
    fn evaluate(
        &self,
        expression: &Expression,
        scope: &ArrayRef,
    ) -> VortexResult<ArrayRef>;
    fn stat_falsification(
        &self,
        expression: &Expression,
        catalog: &mut dyn StatsCatalog,
    ) -> Option<Expression>;
    fn stat_max(
        &self,
        expression: &Expression,
        catalog: &mut dyn StatsCatalog,
    ) -> Option<Expression>;
    fn stat_min(
        &self,
        expression: &Expression,
        catalog: &mut dyn StatsCatalog,
    ) -> Option<Expression>;
    fn stat_nan_count(
        &self,
        expression: &Expression,
        catalog: &mut dyn StatsCatalog,
    ) -> Option<Expression>;
    fn stat_field_path(&self, expression: &Expression) -> Option<FieldPath>;
    fn dyn_eq(&self, instance: &dyn Any, other: &dyn Any) -> bool;
    fn dyn_hash(&self, instance: &dyn Any, state: &mut dyn Hasher);
}

An object-safe trait for dynamic dispatch of Vortex expression vtables.

This trait is automatically implemented via the VTableAdapter for any type that implements VTable, and lifts the associated types into dynamic trait objects.

Required Methods

fn as_any(&self) -> &dyn Any

fn id(&self) -> ExprId

fn serialize(&self, instance: &dyn Any) -> VortexResult<Option<Vec<u8>>>

fn deserialize( &self, metadata: &[u8], ) -> VortexResult<Option<Arc<dyn Any + Send + Sync>>>

fn child_name(&self, instance: &dyn Any, child_idx: usize) -> ChildName

fn validate(&self, expression: &Expression) -> VortexResult<()>

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

fn fmt_data(&self, instance: &dyn Any, f: &mut Formatter<'_>) -> Result

fn return_dtype( &self, expression: &Expression, scope: &DType, ) -> VortexResult<DType>

fn evaluate( &self, expression: &Expression, scope: &ArrayRef, ) -> VortexResult<ArrayRef>

fn stat_falsification( &self, expression: &Expression, catalog: &mut dyn StatsCatalog, ) -> Option<Expression>

fn stat_max( &self, expression: &Expression, catalog: &mut dyn StatsCatalog, ) -> Option<Expression>

fn stat_min( &self, expression: &Expression, catalog: &mut dyn StatsCatalog, ) -> Option<Expression>

fn stat_nan_count( &self, expression: &Expression, catalog: &mut dyn StatsCatalog, ) -> Option<Expression>

fn stat_field_path(&self, expression: &Expression) -> Option<FieldPath>

fn dyn_eq(&self, instance: &dyn Any, other: &dyn Any) -> bool

fn dyn_hash(&self, instance: &dyn Any, state: &mut dyn Hasher)

Implementors

impl<V: VTable> DynExprVTable for VTableAdapter<V>