Struct aws_sdk_emr::types::ScalingRule

#[non_exhaustive]
pub struct ScalingRule {
    pub name: Option<String>,
    pub description: Option<String>,
    pub action: Option<ScalingAction>,
    pub trigger: Option<ScalingTrigger>,
}

A scale-in or scale-out rule that defines scaling activity, including the CloudWatch metric alarm that triggers activity, how Amazon EC2 instances are added or removed, and the periodicity of adjustments. The automatic scaling policy for an instance group can comprise one or more automatic scaling rules.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

name: Option<String>

The name used to identify an automatic scaling rule. Rule names must be unique within a scaling policy.

description: Option<String>

A friendly, more verbose description of the automatic scaling rule.

action: Option<ScalingAction>

The conditions that trigger an automatic scaling activity.

trigger: Option<ScalingTrigger>

The CloudWatch alarm definition that determines when automatic scaling activity is triggered.

Implementations

impl ScalingRule

pub fn name(&self) -> Option<&str>

The name used to identify an automatic scaling rule. Rule names must be unique within a scaling policy.

pub fn description(&self) -> Option<&str>

A friendly, more verbose description of the automatic scaling rule.

pub fn action(&self) -> Option<&ScalingAction>

The conditions that trigger an automatic scaling activity.

pub fn trigger(&self) -> Option<&ScalingTrigger>

The CloudWatch alarm definition that determines when automatic scaling activity is triggered.

impl ScalingRule

pub fn builder() -> ScalingRuleBuilder

Creates a new builder-style object to manufacture ScalingRule.

Trait Implementations

impl Clone for ScalingRule

fn clone(&self) -> ScalingRule

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ScalingRule

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

Formats the value using the given formatter.

impl PartialEq for ScalingRule

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl StructuralPartialEq for ScalingRule