Enum BooleanExpression 

pub enum BooleanExpression {
    Comparison {
        left: ValueExpression,
        operator: ComparisonOperator,
        right: ValueExpression,
    },
    And(Box<BooleanExpression>, Box<BooleanExpression>),
    Or(Box<BooleanExpression>, Box<BooleanExpression>),
    Not(Box<BooleanExpression>),
    Exists(PropertyRef),
    In {
        expression: ValueExpression,
        list: Vec<ValueExpression>,
    },
    Like {
        expression: ValueExpression,
        pattern: String,
    },
    IsNull(ValueExpression),
    IsNotNull(ValueExpression),
}

Boolean expressions in WHERE clauses

Variants

Comparison

Comparison operation (=, <>, <, >, <=, >=)

Fields

left: ValueExpression

operator: ComparisonOperator

right: ValueExpression

And(Box<BooleanExpression>, Box<BooleanExpression>)

Logical AND

Or(Box<BooleanExpression>, Box<BooleanExpression>)

Logical OR

Not(Box<BooleanExpression>)

Logical NOT

Exists(PropertyRef)

Property existence check

In

IN clause

Fields

expression: ValueExpression

list: Vec<ValueExpression>

Like

LIKE pattern matching

Fields

expression: ValueExpression

pattern: String

IsNull(ValueExpression)

IS NULL pattern matching

IsNotNull(ValueExpression)

IS NOT NULL pattern matching

Trait Implementations

impl Clone for BooleanExpression

fn clone(&self) -> BooleanExpression

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BooleanExpression

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for BooleanExpression

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for BooleanExpression

fn eq(&self, other: &BooleanExpression) -> 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 Serialize for BooleanExpression

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for BooleanExpression