Enum msi::Value

pub enum Value {
    Null,
    Int(i32),
    Str(String),
}

A value from one cell in a database table row.

Variants

Null

A null value.

Int(i32)

An integer value.

Str(String)

A string value.

Methods

impl Value

fn is_null(&self) -> bool

Returns true if this is a null value.

fn is_int(&self) -> bool

Returns true if this is an integer value.

fn as_int(&self) -> Option<i32>

Extracts the integer value if it is an integer.

fn is_str(&self) -> bool

Returns true if this is a string value.

fn as_str(&self) -> Option<&str>

Extracts the string value if it is a string.

Trait Implementations

impl Clone for Value

fn clone(&self) -> Value

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Value

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Eq for Value

impl Hash for Value

fn hash<__H: Hasher>(&self, __arg_0: &mut __H)

Feeds this value into the given [Hasher].

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

Feeds a slice of this type into the given [Hasher].

impl Ord for Value

fn cmp(&self, __arg_0: &Value) -> Ordering

This method returns an Ordering between self and other.

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

🔬 This is a nightly-only experimental API. (ord_max_min)

Compares and returns the maximum of two values.

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

🔬 This is a nightly-only experimental API. (ord_max_min)

Compares and returns the minimum of two values.

impl PartialEq for Value

fn eq(&self, __arg_0: &Value) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &Value) -> bool

This method tests for !=.

impl PartialOrd for Value

fn partial_cmp(&self, __arg_0: &Value) -> Option<Ordering>

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

fn lt(&self, __arg_0: &Value) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, __arg_0: &Value) -> bool

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

fn gt(&self, __arg_0: &Value) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, __arg_0: &Value) -> bool

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

impl Display for Value

fn fmt(&self, formatter: &mut Formatter) -> Result<(), Error>

Formats the value using the given formatter.