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Predicate

hawdb_expression

Enum Predicate

pub enum Predicate {
Show 26 variants
    And(Vec<Predicate>),
    Or(Vec<Predicate>),
    Not(Box<Predicate>),
    ConstantBool(bool),
    RelationshipExists {
        variable: String,
        rel_type: String,
        direction: RelationshipDirection,
        target_label: String,
    },
    BoundRelationshipExists {
        source_variable: String,
        rel_type: String,
        direction: RelationshipDirection,
        target_variable: String,
    },
    IdEq {
        variable: String,
        value: Value,
    },
    IdNotEq {
        variable: String,
        value: Value,
    },
    IdCompare {
        variable: String,
        op: ComparisonOp,
        value: Value,
    },
    IdIn {
        variable: String,
        values: Vec<Value>,
    },
    PropertyEq {
        variable: String,
        property: String,
        value: Value,
    },
    PropertyNotEq {
        variable: String,
        property: String,
        value: Value,
    },
    PropertyCompare {
        variable: String,
        property: String,
        op: ComparisonOp,
        value: Value,
    },
    ExpressionEq {
        expression: ProjectionExpression,
        value: ProjectionExpression,
    },
    ExpressionNotEq {
        expression: ProjectionExpression,
        value: ProjectionExpression,
    },
    ExpressionCompare {
        expression: ProjectionExpression,
        op: ComparisonOp,
        value: ProjectionExpression,
    },
    ExpressionContains {
        expression: ProjectionExpression,
        value: ProjectionExpression,
    },
    PropertyListContains {
        variable: String,
        property: String,
        value: Value,
    },
    PropertyListContainsLower {
        variable: String,
        property: String,
        value: String,
    },
    PropertyContains {
        variable: String,
        property: String,
        value: String,
    },
    PropertyStartsWith {
        variable: String,
        property: String,
        value: String,
    },
    PropertyEndsWith {
        variable: String,
        property: String,
        value: String,
    },
    PropertyRegexMatch {
        variable: String,
        property: String,
        pattern: ValidatedRegex,
    },
    PropertyIsNull {
        variable: String,
        property: String,
    },
    PropertyIsNotNull {
        variable: String,
        property: String,
    },
    PropertyIn {
        variable: String,
        property: String,
        values: Vec<Value>,
    },
}

Variants§

And(Vec<Predicate>)

Or(Vec<Predicate>)

Not(Box<Predicate>)

ConstantBool(bool)

RelationshipExists

Fields

§variable: String

§rel_type: String

§direction: RelationshipDirection

§target_label: String

BoundRelationshipExists

Fields

§source_variable: String

§rel_type: String

§direction: RelationshipDirection

§target_variable: String

IdEq

Fields

§variable: String

§value: Value

IdNotEq

Fields

§variable: String

§value: Value

IdCompare

Fields

§variable: String

§op: ComparisonOp

§value: Value

IdIn

Fields

§variable: String

§values: Vec<Value>

PropertyEq

Fields

§variable: String

§property: String

§value: Value

PropertyNotEq

Fields

§variable: String

§property: String

§value: Value

PropertyCompare

Fields

§variable: String

§property: String

§op: ComparisonOp

§value: Value

ExpressionEq

Fields

§expression: ProjectionExpression

§value: ProjectionExpression

ExpressionNotEq

Fields

§expression: ProjectionExpression

§value: ProjectionExpression

ExpressionCompare

Fields

§expression: ProjectionExpression

§op: ComparisonOp

§value: ProjectionExpression

ExpressionContains

Fields

§expression: ProjectionExpression

§value: ProjectionExpression

PropertyListContains

Fields

§variable: String

§property: String

§value: Value

PropertyListContainsLower

Fields

§variable: String

§property: String

§value: String

PropertyContains

Fields

§variable: String

§property: String

§value: String

PropertyStartsWith

Fields

§variable: String

§property: String

§value: String

PropertyEndsWith

Fields

§variable: String

§property: String

§value: String

PropertyRegexMatch

Fields

§variable: String

§property: String

§pattern: ValidatedRegex

PropertyIsNull

Fields

§variable: String

§property: String

PropertyIsNotNull

Fields

§variable: String

§property: String

PropertyIn

Fields

§variable: String

§property: String

§values: Vec<Value>

Trait Implementations§

impl Clone for Predicate

fn clone(&self) -> Self

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

impl Debug for Predicate

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

Formats the value using the given formatter. Read more

impl Eq for Predicate

impl PartialEq for Predicate

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

Equality operator ==. Read more

1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more

impl StructuralPartialEq for Predicate

Auto Trait Implementations§

impl Freeze for Predicate

impl RefUnwindSafe for Predicate

impl Send for Predicate

impl Sync for Predicate

impl Unpin for Predicate

impl UnsafeUnpin for Predicate

impl UnwindSafe for Predicate

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

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

Performs copy-assignment from self to dest. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> RuntimeIoWavePermit for T
where T: Debug + Send,

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = !

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, !>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.