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TransformStage

faucet_stream::stage

Enum TransformStage 

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pub enum TransformStage {
    Map(RecordTransform),
    Filter(FilterSpec),
    Explode(ExplodeSpec),
    Custom(Arc<dyn Fn(Value) -> Vec<Value> + Send + Sync>),
}
Expand description

One stage in a transform pipeline.

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Map(RecordTransform)

Existing 1→1 record transform. Wraps unchanged.

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Filter(FilterSpec)

Available on crate feature transform-filter only.

Predicate-based 1→0|1 stage. Keeps the record iff the predicate evaluates true.

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Explode(ExplodeSpec)

Available on crate feature transform-explode only.

Array-expansion 1→0..N stage. Fans the record out once per element of the targeted array; object elements are merged into the parent container with a prefix, scalars/arrays replace the leaf in place.

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Custom(Arc<dyn Fn(Value) -> Vec<Value> + Send + Sync>)

Arbitrary 0..N closure for library callers (not addressable from YAML).

Trait Implementations§

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impl Clone for TransformStage

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fn clone(&self) -> TransformStage

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for TransformStage

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

Formats the value using the given formatter. Read more

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🔬This is a nightly-only experimental API. (clone_to_uninit)
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