Struct sp_core::offchain::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.

Tuple Fields

0: Box<dyn DbExternalities>

Implementations

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impl OffchainDbExt

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pub fn new<O: DbExternalities + 'static>(offchain: O) -> Self

Create a new instance of OffchainDbExt.

Trait Implementations

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impl Deref for OffchainDbExt

type Target = Box<dyn DbExternalities + 'static, Global>

The resulting type after dereferencing.

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fn deref(&self) -> &Self::Target

Dereferences the value.

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impl DerefMut for OffchainDbExt

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fn deref_mut(&mut self) -> &mut Self::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

Return the extension as &mut dyn Any. Read more

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impl From<Box<dyn DbExternalities + 'static, Global>> for OffchainDbExt

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

Converts to this type from the input type.

Auto Trait Implementations

impl !RefUnwindSafe for OffchainDbExt

impl Send for OffchainDbExt

impl !Sync for OffchainDbExt

impl Unpin for OffchainDbExt

impl !UnwindSafe for OffchainDbExt

Blanket Implementations

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impl<T> Any for Twhere
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 Twhere
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

impl<T> Downcast for Twhere
T: Any,

fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait. Read more

fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait. Read more

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

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s. Read more

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

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s. Read more

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