Enum WriteStrategy

#[non_exhaustive]
pub enum WriteStrategy {
    Merge,
    InsertIfAbsent,
    InsertDefaultIfAbsent,
}

👎Deprecated since 4.14.4: Will be removed in SDK 5.0

Specify the write strategy when inserting documents.

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.

Merge

👎Deprecated since 4.14.4: Will be removed in SDK 5.0

An existing document will be merged with the document being inserted, if there is a pre-existing document.

InsertIfAbsent

👎Deprecated since 4.14.4: Will be removed in SDK 5.0

Insert the document only if there is not already a document with the same Id in the store. If there is already a document in the store with the same Id then this will be a no-op.

InsertDefaultIfAbsent

👎Deprecated since 4.14.4: Will be removed in SDK 5.0

Insert the document, with its contents treated as default data, only if there is not already a document with the same Id in the store. If there is already a document in the store with the same Id then this will be a no-op. Use this strategy if you want to insert default data for a given document Id, which you want to treat as common initial data amongst all peers and that you expect to be mutated or overwritten in due course.

Trait Implementations

impl Clone for WriteStrategy

fn clone(&self) -> WriteStrategy

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for WriteStrategy

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

Formats the value using the given formatter.

impl PartialEq for WriteStrategy

fn eq(&self, other: &WriteStrategy) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for WriteStrategy

impl Eq for WriteStrategy

impl StructuralPartialEq for WriteStrategy