Struct redb::ReadTransaction

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pub struct ReadTransaction<'a> { /* private fields */ }
Expand description

A read-only transaction

Read-only transactions may exist concurrently with writes

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impl<'db> ReadTransaction<'db>

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pub fn open_table<K: RedbKey + 'static, V: RedbValue + 'static>( &self, definition: TableDefinition<'_, K, V> ) -> Result<ReadOnlyTable<'_, K, V>, TableError>

Open the given table

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pub fn open_multimap_table<K: RedbKey + 'static, V: RedbKey + 'static>( &self, definition: MultimapTableDefinition<'_, K, V> ) -> Result<ReadOnlyMultimapTable<'_, K, V>, TableError>

Open the given table

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pub fn list_tables( &self ) -> Result<impl Iterator<Item = UntypedTableHandle>, StorageError>

List all the tables

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pub fn list_multimap_tables( &self ) -> Result<impl Iterator<Item = UntypedMultimapTableHandle>, StorageError>

List all the multimap tables

Trait Implementations§

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impl<'a> Drop for ReadTransaction<'a>

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fn drop(&mut self)

Executes the destructor for this type. Read more

Auto Trait Implementations§

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impl<'a> RefUnwindSafe for ReadTransaction<'a>

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impl<'a> Send for ReadTransaction<'a>

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impl<'a> Sync for ReadTransaction<'a>

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impl<'a> Unpin for ReadTransaction<'a>

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impl<'a> UnwindSafe for ReadTransaction<'a>

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,

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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 Twhere 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 Twhere 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, U> TryFrom<U> for Twhere 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 Twhere 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.