Enum FetchDirection 

pub enum FetchDirection {
    Count {
        limit: Value,
    },
    Next,
    Prior,
    First,
    Last,
    Absolute {
        limit: Value,
    },
    Relative {
        limit: Value,
    },
    All,
    Forward {
        limit: Option<Value>,
    },
    ForwardAll,
    Backward {
        limit: Option<Value>,
    },
    BackwardAll,
}

Specific direction for FETCH statement

Variants

Count

Fetch a specific count of rows.

Fields

limit: Value

The limit value for the count.

Next

Fetch the next row.

Prior

Fetch the prior row.

First

Fetch the first row.

Last

Fetch the last row.

Absolute

Fetch an absolute row by index.

Fields

limit: Value

The absolute index value.

Relative

Fetch a row relative to the current position.

Fields

limit: Value

The relative offset value.

All

Fetch all rows.

Forward

Fetch forward by an optional limit.

Fields

limit: Option<Value>

Optional forward limit.

ForwardAll

Fetch all forward rows.

Backward

Fetch backward by an optional limit.

Fields

limit: Option<Value>

Optional backward limit.

BackwardAll

Fetch all backward rows.

Trait Implementations

impl Clone for FetchDirection

fn clone(&self) -> FetchDirection

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FetchDirection

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

Formats the value using the given formatter.

impl Display for FetchDirection

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

Formats the value using the given formatter.

impl Hash for FetchDirection

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for FetchDirection

fn cmp(&self, other: &FetchDirection) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for FetchDirection

fn eq(&self, other: &FetchDirection) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for FetchDirection

fn partial_cmp(&self, other: &FetchDirection) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Visit for FetchDirection

fn visit<V: Visitor>(&self, visitor: &mut V) -> ControlFlow<V::Break>

Visit this node with the provided Visitor.

impl VisitMut for FetchDirection

fn visit<V: VisitorMut>(&mut self, visitor: &mut V) -> ControlFlow<V::Break>

Mutably visit this node with the provided VisitorMut.

impl Eq for FetchDirection

impl StructuralPartialEq for FetchDirection