pub enum Command {
    Insert {
        id: Option<DocumentId>,
        contents: Bytes,
    },
    Update {
        header: Header,
        contents: Bytes,
    },
    Overwrite {
        id: DocumentId,
        contents: Bytes,
    },
    Delete {
        header: Header,
    },
    Check {
        id: DocumentId,
        revision: Option<Revision>,
    },
}
Expand description

A command to execute within a Collection.

Variants§

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Insert

Fields

§id: Option<DocumentId>

An optional id for the document. If this is None, a unique id will be generated. If this is Some() and a document already exists with that id, a conflict error will be returned.

§contents: Bytes

The initial contents of the document.

Inserts a new document containing contents.

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Update

Fields

§header: Header

The header of the Document. The revision must match the current document.

§contents: Bytes

The new contents to store within the Document.

Update an existing Document identified by header. header.revision must match the currently stored revision on the Document. If it does not, the command fill fail with a DocumentConflict error.

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Overwrite

Fields

§id: DocumentId

The id of the document to overwrite.

§contents: Bytes

The new contents to store within the Document.

Overwrite an existing Document identified by id. The revision will not be checked before the document is updated. If the document does not exist, it will be created.

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Delete

Fields

§header: Header

The current header of the Document.

Delete an existing Document identified by id. revision must match the currently stored revision on the Document. If it does not, the command fill fail with a DocumentConflict error.

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Check

Fields

§id: DocumentId

The id of the document to check.

§revision: Option<Revision>

The revision of the document to check.

Checks whether a document exists, and optionally whether its revision is still current. If the document is not found, a DocumentNotFound error will be returned. If the document revision is provided and does not match, a DocumentConflict error will be returned.

Trait Implementations§

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impl Clone for Command

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fn clone(&self) -> Command

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Command

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

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for Command

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fn deserialize<__D>( __deserializer: __D ) -> Result<Command, <__D as Deserializer<'de>>::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Serialize for Command

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fn serialize<__S>( &self, __serializer: __S ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more

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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<'a, T, E> AsTaggedExplicit<'a, E> for T
where T: 'a,

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fn explicit(self, class: Class, tag: u32) -> TaggedParser<'a, Explicit, Self, E>

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impl<'a, T, E> AsTaggedImplicit<'a, E> for T
where T: 'a,

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fn implicit( self, class: Class, constructed: bool, tag: u32 ) -> TaggedParser<'a, Implicit, Self, E>

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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,