Method finish

arrow-flight/src/sql/metadata/sql_info.rs:276–321

Complete the construction and build the [`UnionArray`]

(self)

    /// Complete the construction and build the [`UnionArray`]
    pub fn finish(self) -> UnionArray {
        let Self {
            mut string_values,
            mut bool_values,
            mut bigint_values,
            mut int32_bitmask_values,
            mut string_list_values,
            mut int32_to_int32_list_map_values,
            mut type_ids,
            mut offsets,
        } = self;
        let type_ids = type_ids.finish();
        let offsets = offsets.finish();

        // form the correct ArrayData

        let len = offsets.len();
        let null_bit_buffer = None;
        let offset = 0;

        let buffers = vec![
            type_ids.into_data().buffers()[0].clone(),
            offsets.into_data().buffers()[0].clone(),
        ];

        let child_data = vec![
            string_values.finish().into_data(),
            bool_values.finish().into_data(),
            bigint_values.finish().into_data(),
            int32_bitmask_values.finish().into_data(),
            string_list_values.finish().into_data(),
            int32_to_int32_list_map_values.finish().into_data(),
        ];

        let data = ArrayData::try_new(
            UNION_TYPE.clone(),
            len,
            null_bit_buffer,
            offset,
            buffers,
            child_data,
        )
        .expect("Correctly created UnionArray");

        UnionArray::from(data)
    }
}

/// Helper to create [`CommandGetSqlInfo`] responses.