Trait rlink::core::function::ReduceFunction [−][src]
pub trait ReduceFunction where
Self: NamedFunction, { fn open(&mut self, context: &Context) -> Result<()>; fn reduce(&self, value: Option<&mut Record>, record: &mut Record) -> Record; fn close(&mut self) -> Result<()>; }
Required methods
fn open(&mut self, context: &Context) -> Result<()>
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fn reduce(&self, value: Option<&mut Record>, record: &mut Record) -> Record
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Expand description
fn close(&mut self) -> Result<()>
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Implementors
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