StartsWithMethod

sql_cli::sql::functions::string_methods

Struct StartsWithMethod

pub struct StartsWithMethod;

Expand description

StartsWith method function

Trait Implementations§

impl MethodFunction for StartsWithMethod

fn handles_method(&self, method_name: &str) -> bool

Check if this method function handles the given method name

fn method_name(&self) -> &'static str

Get the method name this function handles

fn evaluate_method( &self, receiver: &DataValue, args: &[DataValue], ) -> Result<DataValue>

Evaluate as a method (first arg is implicit ‘self’)

impl SqlFunction for StartsWithMethod

fn signature(&self) -> FunctionSignature

Get the function’s signature and metadata

fn evaluate(&self, args: &[DataValue]) -> Result<DataValue>

Evaluate the function with the given arguments

fn validate_args(&self, args: &[DataValue]) -> Result<()>

Validate arguments before evaluation (default implementation checks count)

Auto Trait Implementations§

impl Freeze for StartsWithMethod

impl RefUnwindSafe for StartsWithMethod

impl Send for StartsWithMethod

impl Sync for StartsWithMethod

impl Unpin for StartsWithMethod

impl UnwindSafe for StartsWithMethod

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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where T: ?Sized,

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Immutably borrows from an owned value. Read more

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

Mutably borrows from an owned value. Read more

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fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

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Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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Calls U::from(self).

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Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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type Output = T

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where U: Into<T>,

type Error = Infallible

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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.

impl<V, T> VZip<V> for T
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fn vzip(self) -> V

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Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

impl<T> ErasedDestructor for T
where T: 'static,