Struct grenad::Merger

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pub struct Merger<R, MF> { /* private fields */ }

Expand description

A struct you can use to merge entries from the sources by using the merge function provided to merge values when entries have the same key.

Implementations

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impl<R, MF> Merger<R, MF>

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pub fn builder(merge: MF) -> MergerBuilder<R, MF>

Creates a MergerBuilder from a merge function, it can be used to configure your Merger with the sources to merge.

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impl<R: Read + Seek, MF> Merger<R, MF>

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pub fn into_stream_merger_iter(self) -> Result<MergerIter<R, MF>, Error>

Consumes this Merger and outputs a stream of the merged entries in key-order.

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impl<R, MF, U> Merger<R, MF> where
R: Read + Seek,
MF: for<'a> Fn(&[u8 ], &[Cow<'a, [u8 ]>]) -> Result<Cow<'a, [u8 ]>, U>,

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pub fn write_into_stream_writer<W: Write>(
self,
writer: &mut Writer<W>
) -> Result<(), Error>

Consumes this Merger and streams the entries to the Writer given in parameter.

Auto Trait Implementations

impl<R, MF> RefUnwindSafe for Merger<R, MF> where
MF: RefUnwindSafe,
R: RefUnwindSafe,

impl<R, MF> Send for Merger<R, MF> where
MF: Send,
R: Send,

impl<R, MF> Sync for Merger<R, MF> where
MF: Sync,
R: Sync,

impl<R, MF> Unpin for Merger<R, MF> where
MF: Unpin,
R: Unpin,

impl<R, MF> UnwindSafe for Merger<R, MF> where
MF: UnwindSafe,
R: UnwindSafe,

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 grenad::Merger

Implementations

impl<R, MF> Merger<R, MF>

pub fn builder(merge: MF) -> MergerBuilder<R, MF>

impl<R: Read + Seek, MF> Merger<R, MF>

pub fn into_stream_merger_iter(self) -> Result<MergerIter<R, MF>, Error>

impl<R, MF, U> Merger<R, MF> where
R: Read + Seek,
MF: for<'a> Fn(&[u8 ], &[Cow<'a, [u8 ]>]) -> Result<Cow<'a, [u8 ]>, U>,

pub fn write_into_stream_writer<W: Write>(
self,
writer: &mut Writer<W>
) -> Result<(), Error<U>>

Auto Trait Implementations

impl<R, MF> RefUnwindSafe for Merger<R, MF> where
MF: RefUnwindSafe,
R: RefUnwindSafe,

impl<R, MF> Send for Merger<R, MF> where
MF: Send,
R: Send,

impl<R, MF> Sync for Merger<R, MF> where
MF: Sync,
R: Sync,

impl<R, MF> Unpin for Merger<R, MF> where
MF: Unpin,
R: Unpin,

impl<R, MF> UnwindSafe for Merger<R, MF> where
MF: UnwindSafe,
R: UnwindSafe,

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 grenad::Merger

Implementations

impl<R, MF> Merger<R, MF>

pub fn builder(merge: MF) -> MergerBuilder<R, MF>

impl<R: Read + Seek, MF> Merger<R, MF>

pub fn into_stream_merger_iter(self) -> Result<MergerIter<R, MF>, Error>

impl<R, MF, U> Merger<R, MF> where R: Read + Seek, MF: for<'a> Fn(&[u8], &[Cow<'a, [u8]>]) -> Result<Cow<'a, [u8]>, U>,

pub fn write_into_stream_writer<W: Write>( self, writer: &mut Writer<W>) -> Result<(), Error<U>>

Auto Trait Implementations

impl<R, MF> RefUnwindSafe for Merger<R, MF> where MF: RefUnwindSafe, R: RefUnwindSafe,

impl<R, MF> Send for Merger<R, MF> where MF: Send, R: Send,

impl<R, MF> Sync for Merger<R, MF> where MF: Sync, R: Sync,

impl<R, MF> Unpin for Merger<R, MF> where MF: Unpin, R: Unpin,

impl<R, MF> UnwindSafe for Merger<R, MF> where MF: UnwindSafe, R: UnwindSafe,

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>

impl<R, MF, U> Merger<R, MF> where
R: Read + Seek,
MF: for<'a> Fn(&[u8 ], &[Cow<'a, [u8 ]>]) -> Result<Cow<'a, [u8 ]>, U>,

pub fn write_into_stream_writer<W: Write>(
self,
writer: &mut Writer<W>
) -> Result<(), Error<U>>

impl<R, MF> RefUnwindSafe for Merger<R, MF> where
MF: RefUnwindSafe,
R: RefUnwindSafe,

impl<R, MF> Send for Merger<R, MF> where
MF: Send,
R: Send,

impl<R, MF> Sync for Merger<R, MF> where
MF: Sync,
R: Sync,

impl<R, MF> Unpin for Merger<R, MF> where
MF: Unpin,
R: Unpin,

impl<R, MF> UnwindSafe for Merger<R, MF> where
MF: UnwindSafe,
R: UnwindSafe,

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>,