ConditionBuilder

Struct ConditionBuilder 

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pub struct ConditionBuilder<T: TableType + 'static>(/* private fields */);
Expand description

For building and chaining query conditions.

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impl<T: TableType + 'static> ConditionBuilder<T>

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pub fn by<I: IndexType + 'static>(index: &Index<T, I>, value: I) -> Self

Creates a new query condition using the specified index and value.

§Arguments
  • index - The index to use for the query.
  • value - The value to search for in the index.
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pub fn and(left: Self, right: Self) -> Self

Creates a new query condition representing the logical AND of two existing conditions.

§Arguments
  • left - The left-hand side condition.
  • right - The right-hand side condition.
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pub fn or(left: Self, right: Self) -> Self

Creates a new query condition representing the logical OR of two existing conditions.

§Arguments
  • left - The left-hand side condition.
  • right - The right-hand side condition.
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pub fn build(self) -> QueryCondition<T>

Builds the final query condition.

§Returns

A new QueryCondition.

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impl<T: TableType + 'static> Into<QueryCondition<T>> for ConditionBuilder<T>

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fn into(self) -> QueryCondition<T>

Converts this type into the (usually inferred) input type.

Auto Trait Implementations§

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impl<T> Freeze for ConditionBuilder<T>

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impl<T> !RefUnwindSafe for ConditionBuilder<T>

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impl<T> !Send for ConditionBuilder<T>

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impl<T> !Sync for ConditionBuilder<T>

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impl<T> Unpin for ConditionBuilder<T>

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impl<T> !UnwindSafe for ConditionBuilder<T>

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.