sp_runtime::offchain

Struct OffchainDbExt

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pub struct OffchainDbExt(pub Box<dyn DbExternalities>);
Expand description

The offchain database extension that will be registered at the Substrate externalities.

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§0: Box<dyn DbExternalities>

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impl OffchainDbExt

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pub fn new<O>(offchain: O) -> OffchainDbExt
where O: DbExternalities + 'static,

Create a new instance of OffchainDbExt.

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impl Deref for OffchainDbExt

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type Target = Box<dyn DbExternalities>

The resulting type after dereferencing.
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fn deref(&self) -> &<OffchainDbExt as Deref>::Target

Dereferences the value.
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impl DerefMut for OffchainDbExt

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fn deref_mut(&mut self) -> &mut <OffchainDbExt as Deref>::Target

Mutably dereferences the value.
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impl Extension for OffchainDbExt

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fn as_mut_any(&mut self) -> &mut (dyn Any + 'static)

Return the extension as &mut dyn Any. Read more
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fn type_id(&self) -> TypeId

Get the TypeId of this Extension.
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impl From<Box<dyn DbExternalities>> for OffchainDbExt

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fn from(inner: Box<dyn DbExternalities>) -> OffchainDbExt

Converts to this type from the input type.

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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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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
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impl<T> CheckedConversion for T

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where Self: TryFrom<T>,

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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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type Output = T

Should always be Self
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fn saturated_from<T>(t: T) -> Self
where Self: UniqueSaturatedFrom<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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Performs the conversion.
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type Error = <U as TryFrom<T>>::Error

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

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The counterpart to unchecked_from.
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