migration_rocksdb

Struct Manager

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pub struct Manager { /* private fields */ }
Expand description

Manages database migration.

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impl Manager

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pub fn new(config: Config) -> Self

Creates new migration manager with given configuration.

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pub fn add_migration<T>(&mut self, migration: T) -> Result<()>
where T: Migration + 'static,

Adds new migration rules.

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pub fn execute(&mut self, old_path: &Path, version: u32) -> Result<PathBuf>

Performs migration in order, starting with a source path, migrating between two temporary databases, and producing a path where the final migration lives.

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pub fn is_needed(&self, version: u32) -> bool

Returns true if migration is needed.

Auto Trait Implementations§

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impl Freeze for Manager

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impl !RefUnwindSafe for Manager

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impl !Send for Manager

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impl !Sync for Manager

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impl Unpin for Manager

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impl !UnwindSafe for Manager

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,

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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 T
where 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 T
where 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 T
where 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 T
where 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.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> Erased for T