结构体 UnionDecoderBuilder 

struct UnionDecoderBuilder {
    fields: Option<UnionFields>,
    branches: Option<Vec<Decoder>>,
    resolved: Option<ResolvedUnion>,
    target: Option<Box<Decoder>>,
}

字段

fields: Option<UnionFields>

branches: Option<Vec<Decoder>>

resolved: Option<ResolvedUnion>

target: Option<Box<Decoder>>

实现

impl UnionDecoderBuilder

fn new() -> Self

fn with_fields(self, fields: UnionFields) -> Self

fn with_branches(self, branches: Vec<Decoder>) -> Self

fn with_resolved_union(self, resolved_union: ResolvedUnion) -> Self

fn with_target(self, target: Box<Decoder>) -> Self

fn build(self) -> Result<UnionDecoder, ArrowError>

Trait 实现

impl Debug for UnionDecoderBuilder

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

使用给定的格式化程序格式化值。 阅读更多

impl Default for UnionDecoderBuilder

fn default() -> UnionDecoderBuilder

返回某个类型的“默认值”。阅读更多