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

Implementations

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impl<'db> ReadTransaction<'db>

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

Open the given table

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

Open the given table

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

List all the tables

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

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

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

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

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

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

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

Blanket Implementations

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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,

const: unstable · source

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,

const: unstable · source

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

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

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 for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

Struct redb::ReadTransaction

Implementations

impl<'db> ReadTransaction<'db>

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

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

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

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

Trait Implementations

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

fn drop(&mut self)

Auto Trait Implementations

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

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

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

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

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

Blanket Implementations

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

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where
T: ?Sized,

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

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

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

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

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

Struct redb::ReadTransaction

Implementations

impl<'db> ReadTransaction<'db>

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

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

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

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

Trait Implementations

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

fn drop(&mut self)

Auto Trait Implementations

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

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

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

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

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

Blanket Implementations

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

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

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

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

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

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

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

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

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

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

impl<T> Borrow<T> for T where
T: ?Sized,

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

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

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

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,