Struct Mutation 

pub struct Mutation { /* private fields */ }

Represents an individual table modification to be applied to Cloud Spanner.

Example

use google_cloud_spanner::mutation::Mutation;

let mutation = Mutation::new_insert_builder("Users")
    .set("UserId").to(&1)
    .set("UserName").to(&"Alice")
    .build();

Use the methods on Mutation to create a builder for the desired operation type.

Implementations

impl Mutation

pub fn new_insert_builder(table: impl Into<String>) -> WriteBuilder

Returns a builder that can be used to construct an Insert mutation against table.

Example

use google_cloud_spanner::mutation::Mutation;
let mutation = Mutation::new_insert_builder("Users")
    .set("UserId").to(&1)
    .build();

pub fn new_update_builder(table: impl Into<String>) -> WriteBuilder

Returns a builder that can be used to construct an Update mutation against table.

Example

use google_cloud_spanner::mutation::Mutation;
let mutation = Mutation::new_update_builder("Users")
    .set("UserId").to(&1)
    .set("UserName").to(&"Bob")
    .build();

pub fn new_insert_or_update_builder(table: impl Into<String>) -> WriteBuilder

Returns a builder that can be used to construct an InsertOrUpdate mutation against table.

Example

use google_cloud_spanner::mutation::Mutation;
let mutation = Mutation::new_insert_or_update_builder("Users")
    .set("UserId").to(&1)
    .set("UserName").to(&"Bob")
    .build();

pub fn new_replace_builder(table: impl Into<String>) -> WriteBuilder

Returns a builder that can be used to construct a Replace mutation against table.

Example

use google_cloud_spanner::mutation::Mutation;
let mutation = Mutation::new_replace_builder("Users")
    .set("UserId").to(&1)
    .set("UserName").to(&"Bob")
    .build();

pub fn delete(table: impl Into<String>, key_set: KeySet) -> Mutation

Returns a mutation that will delete all rows with primary keys covered by key_set.

Example

// Example omitted temporarily until the new KeySet API is merged

Trait Implementations

impl Clone for Mutation

fn clone(&self) -> Mutation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Mutation

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

Formats the value using the given formatter.

impl PartialEq for Mutation

fn eq(&self, other: &Mutation) -> 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 StructuralPartialEq for Mutation