Trait ArrayBuilder

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pub trait ArrayBuilder: Send {
Show 13 methods    // Required methods
    fn as_any(&self) -> &dyn Any;
    fn as_any_mut(&mut self) -> &mut dyn Any;
    fn dtype(&self) -> &DType;
    fn len(&self) -> usize;
    fn append_zeros(&mut self, n: usize);
    fn append_nulls(&mut self, n: usize);
    fn extend_from_array(&mut self, array: &dyn Array) -> VortexResult<()>;
    fn ensure_capacity(&mut self, capacity: usize);
    fn set_validity(&mut self, validity: Mask);
    fn finish(&mut self) -> ArrayRef;

    // Provided methods
    fn is_empty(&self) -> bool { ... }
    fn append_zero(&mut self) { ... }
    fn append_null(&mut self) { ... }
}

Required Methods§

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fn append_zeros(&mut self, n: usize)

Appends n “zero” values to the array.

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fn append_nulls(&mut self, n: usize)

Appends n “null” values to the array.

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fn extend_from_array(&mut self, array: &dyn Array) -> VortexResult<()>

Extends the array with the provided array, canonicalizing if necessary.

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fn ensure_capacity(&mut self, capacity: usize)

Ensure that the builder can hold at least capacity number of items

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fn set_validity(&mut self, validity: Mask)

Override builders validity with the one provided

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fn finish(&mut self) -> ArrayRef

Constructs an Array from the builder components.

§Panics

This function may panic if the builder’s methods are called with invalid arguments. If only the methods on this interface are used, the builder should not panic. However, specific builders have interfaces that may be misued. For example, if the number of values in a PrimitiveBuilder’s vortex_buffer::BufferMut does not match the number of validity bits, the PrimitiveBuilder’s Self::finish will panic.