Trait risinglight::array::ArrayBuilder

source ·

pub trait ArrayBuilder: Sized + Send + Sync + 'static {
    type Array: Array<Builder = Self>;

    fn extend_from_raw_data(
        &mut self,
        raw: &[<<Self::Array as Array>::Item as ToOwned>::Owned]
    );
    fn extend_from_nulls(&mut self, count: usize);
    fn replace_bitmap(&mut self, valid: BitVec);
    fn with_capacity(capacity: usize) -> Self;
    fn reserve(&mut self, capacity: usize);
    fn push_n(&mut self, n: usize, value: Option<&<Self::Array as Array>::Item>);
    fn append(&mut self, other: &Self::Array);
    fn take(&mut self) -> Self::Array;

    fn new() -> Self { ... }
    fn push(&mut self, value: Option<&<Self::Array as Array>::Item>) { ... }
    fn finish(self) -> Self::Array { ... }
}

Expand description

A trait over all array builders.

ArrayBuilder is a trait over all builders. You could build an array with push with the help of ArrayBuilder trait. The push function always accepts reference to an element. e.g. for PrimitiveArray, you must do builder.push(Some(&1)). For Utf8Array, you must do builder.push(Some("xxx")). Note that you don’t need to construct a String.

The associated type Array is the type of the corresponding array. It is the return type of finish.