Trait ColumnData

Source

pub trait ColumnData:
    Send
    + Sync
    + 'static {
Show 19 methods    // Required methods
    fn ty(&self) -> ValueType;
    fn len(&self) -> usize;
    fn encoding(&self) -> EncodingId;
    fn is_nullable(&self) -> bool;
    fn nones(&self) -> Option<&NoneBitmap>;
    fn stats(&self) -> &StatsSet;
    fn get_value(&self, idx: usize) -> Value;
    fn as_string(&self, idx: usize) -> String;
    fn as_any(&self) -> &dyn Any;
    fn as_any_mut(&mut self) -> &mut dyn Any;
    fn children(&self) -> &[Column];
    fn metadata(&self) -> &dyn Any;
    fn to_canonical(&self) -> Result<Arc<Canonical>>;

    // Provided methods
    fn is_empty(&self) -> bool { ... }
    fn is_defined(&self, idx: usize) -> bool { ... }
    fn iter(&self) -> Box<dyn Iterator<Item = Value> + '_> { ... }
    fn filter(&self, mask: &RowMask) -> Result<Column> { ... }
    fn take(&self, indices: &Column) -> Result<Column> { ... }
    fn slice(&self, start: usize, end: usize) -> Result<Column> { ... }
}