Enum matterdb::generic::GenericAccess

#[non_exhaustive]pub enum GenericAccess<T> {
    Raw(T),
    Prefixed(Prefixed<T>),
    Migration(Migration<T>),
    Scratchpad(Scratchpad<T>),
}

Generic access containing any kind of accesses supported by the database.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Raw(T)

Access to the entire database.

Prefixed(Prefixed<T>)

Prefixed access to the database.

Migration(Migration<T>)

Migration within a certain namespace.

Scratchpad(Scratchpad<T>)

Scratchpad for a migration.

Implementations

impl GenericAccess<GenericRawAccess<'a>>

pub fn is_mutable(&self) -> bool

Checks if the underlying access is mutable.

Trait Implementations

impl<T: RawAccess> Access for GenericAccess<T>

type Base = T

Raw access serving as the basis for created indexes.

fn get_index_metadata(
    self,
    addr: IndexAddress
) -> Result<Option<IndexMetadata<Vec<u8>>>, AccessError>

Gets index metadata at the specified address, or None if there is no index.

fn get_or_create_view(
    self,
    addr: IndexAddress,
    index_type: IndexType
) -> Result<ViewWithMetadata<Self::Base>, AccessError>

Gets or creates a generic view with the specified address.

fn group_keys<K: ?Sized>(
    self,
    base_addr: IndexAddress
) -> GroupKeys<Self::Base, K> where
    K: BinaryKey,
    Self::Base: AsReadonly<Readonly = Self::Base>, 

Returns an iterator over keys in a group with the specified address.

impl<T: Clone> Clone for GenericAccess<T>

fn clone(&self) -> GenericAccess<T>

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug> Debug for GenericAccess<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: RawAccess> From<Migration<T>> for GenericAccess<T>

fn from(access: Migration<T>) -> Self

Performs the conversion.

impl<T: RawAccess> From<Prefixed<T>> for GenericAccess<T>

fn from(access: Prefixed<T>) -> Self

Performs the conversion.

impl<T: RawAccess> From<Scratchpad<T>> for GenericAccess<T>

fn from(access: Scratchpad<T>) -> Self

Performs the conversion.

impl<T: RawAccess> From<T> for GenericAccess<T>

fn from(access: T) -> Self

Performs the conversion.