Struct parquet::schema::types::GroupTypeBuilder

pub struct GroupTypeBuilder<'a> { /* private fields */ }

A builder for group types. All attributes are optional except the name. Note that if not specified explicitly, None is used as the repetition of the group, which means it is a root (message) type.

Implementations

impl<'a> GroupTypeBuilder<'a>

pub fn new(name: &'a str) -> Self

Creates new group type builder with provided field name.

pub fn with_repetition(self, repetition: Repetition) -> Self

Sets Repetition for this field and returns itself.

pub fn with_converted_type(self, converted_type: ConvertedType) -> Self

Sets ConvertedType for this field and returns itself.

pub fn with_logical_type(self, logical_type: Option<LogicalType>) -> Self

Sets LogicalType for this field and returns itself.

pub fn with_fields(self, fields: Vec<TypePtr>) -> Self

Sets a list of fields that should be child nodes of this field. Returns updated self.

pub fn with_id(self, id: Option<i32>) -> Self

Sets optional field id and returns itself.

pub fn build(self) -> Result<Type>

Creates a new GroupType instance from the gathered attributes.