software.amazon.awssdk.services.emr.model

Class PlacementType

java.lang.Object

software.amazon.awssdk.services.emr.model.PlacementType

All Implemented Interfaces:

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

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

The Amazon EC2 Availability Zone configuration of the cluster (job flow).

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	PlacementType.Builder

Method Summary

Modifier and Type	Method and Description
String	availabilityZone() The Amazon EC2 Availability Zone for the cluster.
List<String>	availabilityZones() When multiple Availability Zones are specified, Amazon EMR evaluates them and launches instances in the optimal Availability Zone.
static PlacementType.Builder	builder()
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)
boolean	hasAvailabilityZones() For responses, this returns true if the service returned a value for the AvailabilityZones property.
int	hashCode()
List<SdkField<?>>	sdkFields()
static Class<? extends PlacementType.Builder>	serializableBuilderClass()
PlacementType.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

availabilityZone

public final String availabilityZone()

The Amazon EC2 Availability Zone for the cluster. AvailabilityZone is used for uniform instance groups, while AvailabilityZones (plural) is used for instance fleets.

Returns:

The Amazon EC2 Availability Zone for the cluster. AvailabilityZone is used for uniform instance groups, while AvailabilityZones (plural) is used for instance fleets.

hasAvailabilityZones

public final boolean hasAvailabilityZones()

For responses, this returns true if the service returned a value for the AvailabilityZones 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.

availabilityZones

public final List<String> availabilityZones()

When multiple Availability Zones are specified, Amazon EMR evaluates them and launches instances in the optimal Availability Zone. AvailabilityZones is used for instance fleets, while AvailabilityZone (singular) is used for uniform instance groups.

The instance fleet configuration is available only in Amazon EMR versions 4.8.0 and later, excluding 5.0.x versions.

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 hasAvailabilityZones() method.

Returns:

When multiple Availability Zones are specified, Amazon EMR evaluates them and launches instances in the optimal Availability Zone. AvailabilityZones is used for instance fleets, while AvailabilityZone (singular) is used for uniform instance groups.

The instance fleet configuration is available only in Amazon EMR versions 4.8.0 and later, excluding 5.0.x versions.

toBuilder

public PlacementType.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<PlacementType.Builder,PlacementType>

Returns:

a builder for type T

builder

public static PlacementType.Builder builder()

serializableBuilderClass

public static Class<? extends PlacementType.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.