Struct matterdb::migration::Migration [−][src]
Access to migrated indexes.
Migration is conceptually similar to a Prefixed access. For example, an index with
address "list" in a migration Migration::new("foo", _) will map to the address "foo.list"
after the migration is flushed. The major difference with Prefixed is that the indexes
in a migration cannot be accessed in any other way. That is, it is impossible to access
an index in a migration without constructing a Migration object first.
Implementations
impl<T: RawAccess> Migration<T>[src]
pub fn new(namespace: impl Into<String>, access: T) -> Self[src]
Creates a migration in the specified namespace.
impl<T: RawAccessMut> Migration<T>[src]
pub fn create_tombstone<I>(&self, addr: I) where
I: Into<IndexAddress>, [src]
I: Into<IndexAddress>,
Marks an index with the specified address as removed during migration.
Panics
Panics if an index already exists at the specified address.
Trait Implementations
impl<T: RawAccess> Access for Migration<T>[src]
type Base = T
Raw access serving as the basis for created indexes.
fn get_index_metadata(
self,
addr: IndexAddress
) -> Result<Option<IndexMetadata>, AccessError>[src]
self,
addr: IndexAddress
) -> Result<Option<IndexMetadata>, AccessError>
fn get_or_create_view(
self,
addr: IndexAddress,
index_type: IndexType
) -> Result<ViewWithMetadata<Self::Base>, AccessError>[src]
self,
addr: IndexAddress,
index_type: IndexType
) -> Result<ViewWithMetadata<Self::Base>, AccessError>
fn group_keys<K: ?Sized>(
self,
base_addr: IndexAddress
) -> GroupKeys<Self::Base, K> where
K: BinaryKey,
Self::Base: AsReadonly<Readonly = Self::Base>, [src]
self,
base_addr: IndexAddress
) -> GroupKeys<Self::Base, K> where
K: BinaryKey,
Self::Base: AsReadonly<Readonly = Self::Base>,
impl<T: Clone> Clone for Migration<T>[src]
impl<T: Debug> Debug for Migration<T>[src]
impl<T: RawAccess> From<Migration<T>> for GenericAccess<T>[src]
impl<'a, T> IntoErased<'a> for Migration<T> where
T: Into<GenericRawAccess<'a>>, [src]
T: Into<GenericRawAccess<'a>>,
fn into_erased(self) -> ErasedAccess<'a>[src]
Auto Trait Implementations
impl<T> RefUnwindSafe for Migration<T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<T> Send for Migration<T> where
T: Send,
T: Send,
impl<T> Sync for Migration<T> where
T: Sync,
T: Sync,
impl<T> Unpin for Migration<T> where
T: Unpin,
T: Unpin,
impl<T> UnwindSafe for Migration<T> where
T: UnwindSafe,
T: UnwindSafe,
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T[src]
impl<T> From<T> for T[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<T> Pointable for T
pub const ALIGN: usize
type Init = T
The type for initializers.
pub unsafe fn init(init: <T as Pointable>::Init) -> usize
pub unsafe fn deref<'a>(ptr: usize) -> &'a T
pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T
pub unsafe fn drop(ptr: usize)
impl<T> ToOwned for T where
T: Clone, [src]
T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T[src]
pub fn clone_into(&self, target: &mut T)[src]
impl<T, U> TryFrom<U> for T where
U: Into<T>, [src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]
impl<V, T> VZip<V> for T where
V: MultiLane<T>,
V: MultiLane<T>,