Class ScalingRule

java.lang.Object
software.amazon.awssdk.services.emr.model.ScalingRule
All Implemented Interfaces:
Serializable, SdkPojo, ToCopyableBuilder<ScalingRule.Builder,ScalingRule>
@Generated("software.amazon.awssdk:codegen") public final class ScalingRule extends Object implements SdkPojo, Serializable, ToCopyableBuilder<ScalingRule.Builder,ScalingRule>

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.

See Also:

  • Method Details

    • name

      public final String name()

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

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

    • description

      public final String description()

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

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

    • action

      public final ScalingAction action()

      The conditions that trigger an automatic scaling activity.

      Returns:
      The conditions that trigger an automatic scaling activity.

    • trigger

      public final ScalingTrigger trigger()

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

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

    • toBuilder

      public ScalingRule.Builder toBuilder()
      Description copied from interface: ToCopyableBuilder
      Take this object and create a builder that contains all of the current property values of this object.
      Specified by:
      toBuilder in interface ToCopyableBuilder<ScalingRule.Builder,ScalingRule>
      Returns:
      a builder for type T

    • builder

      public static ScalingRule.Builder builder()

    • serializableBuilderClass

      public static Class<? extends ScalingRule.Builder> serializableBuilderClass()

    • hashCode

      public final int hashCode()
      Overrides:
      hashCode in class Object

    • equals

      public final boolean equals(Object obj)
      Overrides:
      equals in class Object

    • equalsBySdkFields

      public final boolean equalsBySdkFields(Object obj)
      Description copied from interface: SdkPojo
      Indicates whether some other object is "equal to" this one by SDK fields. An SDK field is a modeled, non-inherited field in an SdkPojo class, and is generated based on a service model.

      If an SdkPojo class does not have any inherited fields, equalsBySdkFields and equals are essentially the same.

      Specified by:
      equalsBySdkFields in interface SdkPojo
      Parameters:
      obj - the object to be compared with
      Returns:
      true if the other object equals to this object by sdk fields, false otherwise.

    • toString

      public final String toString()
      Returns a string representation of this object. This is useful for testing and debugging. Sensitive data will be redacted from this string using a placeholder value.
      Overrides:
      toString in class Object

    • getValueForField

      public final <T> Optional<T> getValueForField(String fieldName, Class<T> clazz)

    • sdkFields

      public final List<SdkField<?>> sdkFields()
      Specified by:
      sdkFields in interface SdkPojo
      Returns:
      List of SdkField in this POJO. May be empty list but should never be null.

    • sdkFieldNameToField

      public final Map<String,SdkField<?>> sdkFieldNameToField()
      Specified by:
      sdkFieldNameToField in interface SdkPojo
      Returns:
      The mapping between the field name and its corresponding field.