software.amazon.awscdk.services.emr

Interface CfnCluster.ScalingTriggerProperty

All Superinterfaces:

software.amazon.jsii.JsiiSerializable

All Known Implementing Classes:

CfnCluster.ScalingTriggerProperty.Jsii$Proxy

Enclosing class:

CfnCluster

@Stability(value=Stable)
public static interface CfnCluster.ScalingTriggerProperty
extends software.amazon.jsii.JsiiSerializable

`ScalingTrigger` is a subproperty of the `ScalingRule` property type.

ScalingTrigger determines the conditions that trigger an automatic scaling activity.

Example:

 // The code below shows an example of how to instantiate this type.
 // The values are placeholders you should change.
 import software.amazon.awscdk.services.emr.*;
 ScalingTriggerProperty scalingTriggerProperty = ScalingTriggerProperty.builder()
         .cloudWatchAlarmDefinition(CloudWatchAlarmDefinitionProperty.builder()
                 .comparisonOperator("comparisonOperator")
                 .metricName("metricName")
                 .period(123)
                 .threshold(123)
                 // the properties below are optional
                 .dimensions(List.of(MetricDimensionProperty.builder()
                         .key("key")
                         .value("value")
                         .build()))
                 .evaluationPeriods(123)
                 .namespace("namespace")
                 .statistic("statistic")
                 .unit("unit")
                 .build())
         .build();
 

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	CfnCluster.ScalingTriggerProperty.Builder A builder for CfnCluster.ScalingTriggerProperty
static class	CfnCluster.ScalingTriggerProperty.Jsii$Proxy An implementation for CfnCluster.ScalingTriggerProperty

Method Summary

Modifier and Type	Method and Description
static CfnCluster.ScalingTriggerProperty.Builder	builder()
Object	getCloudWatchAlarmDefinition() The definition of a CloudWatch metric alarm.

Methods inherited from interface software.amazon.jsii.JsiiSerializable

$jsii$toJson

Method Detail

getCloudWatchAlarmDefinition

@Stability(value=Stable)
 @NotNull
Object getCloudWatchAlarmDefinition()

The definition of a CloudWatch metric alarm.

When the defined alarm conditions are met along with other trigger parameters, scaling activity begins.

builder

@Stability(value=Stable)
static CfnCluster.ScalingTriggerProperty.Builder builder()

Returns:

a CfnCluster.ScalingTriggerProperty.Builder of CfnCluster.ScalingTriggerProperty