software.amazon.awssdk.services.emr.model

Class AutoScalingPolicy

java.lang.Object

software.amazon.awssdk.services.emr.model.AutoScalingPolicy

All Implemented Interfaces:

Serializable, SdkPojo, ToCopyableBuilder<AutoScalingPolicy.Builder,AutoScalingPolicy>

@Generated(value="software.amazon.awssdk:codegen")
public final class AutoScalingPolicy
extends Object
implements SdkPojo, Serializable, ToCopyableBuilder<AutoScalingPolicy.Builder,AutoScalingPolicy>

An automatic scaling policy for a core instance group or task instance group in an Amazon EMR cluster. An automatic scaling policy defines how an instance group dynamically adds and terminates EC2 instances in response to the value of a CloudWatch metric. See PutAutoScalingPolicy.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	AutoScalingPolicy.Builder

Method Summary

Modifier and Type	Method and Description
static AutoScalingPolicy.Builder	builder()
ScalingConstraints	constraints() The upper and lower EC2 instance limits for an automatic scaling policy.
boolean	equals(Object obj)
boolean	equalsBySdkFields(Object obj) Indicates whether some other object is "equal to" this one by SDK fields.
<T> Optional<T>	getValueForField(String fieldName, Class<T> clazz)
int	hashCode()
boolean	hasRules() For responses, this returns true if the service returned a value for the Rules property.
List<ScalingRule>	rules() The scale-in and scale-out rules that comprise the automatic scaling policy.
List<SdkField<?>>	sdkFields()
static Class<? extends AutoScalingPolicy.Builder>	serializableBuilderClass()
AutoScalingPolicy.Builder	toBuilder() Take this object and create a builder that contains all of the current property values of this object.
String	toString() Returns a string representation of this object.

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface software.amazon.awssdk.utils.builder.ToCopyableBuilder

copy

Method Detail

constraints

public final ScalingConstraints constraints()

The upper and lower EC2 instance limits for an automatic scaling policy. Automatic scaling activity will not cause an instance group to grow above or below these limits.

Returns:

The upper and lower EC2 instance limits for an automatic scaling policy. Automatic scaling activity will not cause an instance group to grow above or below these limits.

hasRules

public final boolean hasRules()

For responses, this returns true if the service returned a value for the Rules property. This DOES NOT check that the value is non-empty (for which, you should check the isEmpty() method on the property). This is useful because the SDK will never return a null collection or map, but you may need to differentiate between the service returning nothing (or null) and the service returning an empty collection or map. For requests, this returns true if a value for the property was specified in the request builder, and false if a value was not specified.

rules

public final List<ScalingRule> rules()

The scale-in and scale-out rules that comprise the automatic scaling policy.

Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.

This method will never return null. If you would like to know whether the service returned this field (so that you can differentiate between null and empty), you can use the hasRules() method.

Returns:

The scale-in and scale-out rules that comprise the automatic scaling policy.

toBuilder

public AutoScalingPolicy.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<AutoScalingPolicy.Builder,AutoScalingPolicy>

Returns:

a builder for type T

builder

public static AutoScalingPolicy.Builder builder()

serializableBuilderClass

public static Class<? extends AutoScalingPolicy.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.