Trait ArrayParentReduceRule 

pub trait ArrayParentReduceRule<Child: Matcher, Parent: Matcher>:
    Debug
    + Send
    + Sync
    + 'static {
    // Required methods
    fn child(&self) -> Child;
    fn parent(&self) -> Parent;
    fn reduce_parent(
        &self,
        child: Child::View<'_>,
        parent: Parent::View<'_>,
        child_idx: usize,
    ) -> VortexResult<Option<ArrayRef>>;
}

A rewrite rule that transforms arrays based on parent context

Required Methods

fn child(&self) -> Child

Returns the matcher for the child array

fn parent(&self) -> Parent

Returns the matcher for the parent array

fn reduce_parent( &self, child: Child::View<'_>, parent: Parent::View<'_>, child_idx: usize, ) -> VortexResult<Option<ArrayRef>>

Attempt to rewrite this child array given information about its parent.

Returns:

• Ok(Some(new_array)) if the rule applied successfully
• Ok(None) if the rule doesn’t apply
• Err(e) if an error occurred

Implementors

impl ArrayParentReduceRule<Exact<BoolVTable>, Exact<MaskedVTable>> for BoolMaskedValidityRule

impl ArrayParentReduceRule<Exact<DecimalVTable>, Exact<MaskedVTable>> for DecimalMaskedValidityRule

impl ArrayParentReduceRule<Exact<PrimitiveVTable>, Exact<MaskedVTable>> for PrimitiveMaskedValidityRule