Struct Condition

pub struct Condition<'a, T: Clone + 'a> {
    pub column: usize,
    pub cmp: Comparison<'a, T>,
}

A single condition to evaluate for a row in the dataset.

Fields

column: usize

The column of the row to use as the comparison value.

cmp: Comparison<'a, T>

The comparison to perform on the selected value.

Implementations

impl<'a, T: Ord + Clone + 'a> Condition<'a, T>

pub fn matches<R: Row<T> + ?Sized>(&self, row: &R) -> bool

Returns true if this condition holds true for the given row. To determine if this is the case, row[self.column] is extracted, and is evaluated using the comparison in self.cmp.

Trait Implementations

impl<'a, T: Clone + Clone + 'a> Clone for Condition<'a, T>

fn clone(&self) -> Condition<'a, T>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a, T: Debug + Clone + 'a> Debug for Condition<'a, T>

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

Formats the value using the given formatter.

impl<'a, T: Display + Clone + 'a> Display for Condition<'a, T>

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

Formats the value using the given formatter.