Struct mz_persist_types::dyn_struct::DynStructMut

pub struct DynStructMut {
    cfg: DynStructCfg,
    len: usize,
    validity: Option<<bool as Data>::Mut>,
    cols: Vec<DynColumnMut>,
}

A crate::columnar::ColumnPush impl for DynStruct.

Fields

cfg: DynStructCfg

len: usize

validity: Option<<bool as Data>::Mut>

cols: Vec<DynColumnMut>

Implementations

impl DynStructMut

pub fn from_parts( cfg: DynStructCfg, len: usize, validity: Option<BooleanBufferBuilder>, cols: Vec<DynColumnMut>, ) -> Self

Create a DynStructMut from individual parts.

Note: it’s up to the user to ensure the provided cfg has the same column types as the provided cols. We can’t validate it here because DataTypes are not easily comparable.

pub fn len(&self) -> usize

Returns the number of elements in this column

pub fn cfg(&self) -> &DynStructCfg

Returns the configuration for this column.

pub fn as_mut(self) -> ColumnsMut

Explodes this non-optional struct column into its component fields.

Panics if this struct is optional.

pub fn as_opt_mut(self) -> ColumnsMut<ValidityMut>

Explodes this optional struct column into its component fields and validity.

If the column is actually non-option, succeeds and acts as if every value is a Some.

fn push_cols(&mut self, val: DynStructRef<'_>)

Trait Implementations

impl ColumnMut<DynStructCfg> for DynStructMut

fn new(cfg: &DynStructCfg) -> Self

Construct an empty instance of this type with the given configuration.

fn cfg(&self) -> &DynStructCfg

Returns the super::ColumnCfg for this column.

impl ColumnPush<DynStruct> for DynStructMut

fn push<'a>(&mut self, val: DynStructRef<'a>)

Pushes a new value into this column.

fn finish(self) -> <DynStruct as Data>::Col

Finishes the mutable column returning the corresponding Data::Col.

impl ColumnPush<Option<DynStruct>> for DynStructMut

fn push<'a>(&mut self, val: Option<DynStructRef<'a>>)

Pushes a new value into this column.

fn finish(self) -> <Option<DynStruct> as Data>::Col

Finishes the mutable column returning the corresponding Data::Col.

impl Debug for DynStructMut

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

Formats the value using the given formatter.

impl From<DynStructMut> for DynStructCol

fn from(value: DynStructMut) -> Self

Converts to this type from the input type.