software.amazon.awssdk.services.emr.model

Class PlacementGroupConfig

java.lang.Object

software.amazon.awssdk.services.emr.model.PlacementGroupConfig

All Implemented Interfaces:

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

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

Placement group configuration for an Amazon EMR cluster. The configuration specifies the placement strategy that can be applied to instance roles during cluster creation.

To use this configuration, consider attaching managed policy AmazonElasticMapReducePlacementGroupPolicy to the EMR role.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	PlacementGroupConfig.Builder

Method Summary

Modifier and Type	Method and Description
static PlacementGroupConfig.Builder	builder()
boolean	equals(Object obj)
boolean	equalsBySdkFields(Object obj)
<T> Optional<T>	getValueForField(String fieldName, Class<T> clazz)
int	hashCode()
InstanceRoleType	instanceRole() Role of the instance in the cluster.
String	instanceRoleAsString() Role of the instance in the cluster.
PlacementGroupStrategy	placementStrategy() EC2 Placement Group strategy associated with instance role.
String	placementStrategyAsString() EC2 Placement Group strategy associated with instance role.
List<SdkField<?>>	sdkFields()
static Class<? extends PlacementGroupConfig.Builder>	serializableBuilderClass()
PlacementGroupConfig.Builder	toBuilder()
String	toString() Returns a string representation of this object.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

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

copy

Method Detail

instanceRole

public final InstanceRoleType instanceRole()

Role of the instance in the cluster.

Starting with Amazon EMR version 5.23.0, the only supported instance role is MASTER.

If the service returns an enum value that is not available in the current SDK version, instanceRole will return InstanceRoleType.UNKNOWN_TO_SDK_VERSION. The raw value returned by the service is available from instanceRoleAsString().

Returns:

Role of the instance in the cluster.

Starting with Amazon EMR version 5.23.0, the only supported instance role is MASTER.

See Also:

InstanceRoleType

instanceRoleAsString

public final String instanceRoleAsString()

Role of the instance in the cluster.

Starting with Amazon EMR version 5.23.0, the only supported instance role is MASTER.

If the service returns an enum value that is not available in the current SDK version, instanceRole will return InstanceRoleType.UNKNOWN_TO_SDK_VERSION. The raw value returned by the service is available from instanceRoleAsString().

Returns:

Role of the instance in the cluster.

Starting with Amazon EMR version 5.23.0, the only supported instance role is MASTER.

See Also:

InstanceRoleType

placementStrategy

public final PlacementGroupStrategy placementStrategy()

EC2 Placement Group strategy associated with instance role.

Starting with Amazon EMR version 5.23.0, the only supported placement strategy is SPREAD for the MASTER instance role.

If the service returns an enum value that is not available in the current SDK version, placementStrategy will return PlacementGroupStrategy.UNKNOWN_TO_SDK_VERSION. The raw value returned by the service is available from placementStrategyAsString().

Returns:

EC2 Placement Group strategy associated with instance role.

Starting with Amazon EMR version 5.23.0, the only supported placement strategy is SPREAD for the MASTER instance role.

See Also:

PlacementGroupStrategy

placementStrategyAsString

public final String placementStrategyAsString()

EC2 Placement Group strategy associated with instance role.

Starting with Amazon EMR version 5.23.0, the only supported placement strategy is SPREAD for the MASTER instance role.

If the service returns an enum value that is not available in the current SDK version, placementStrategy will return PlacementGroupStrategy.UNKNOWN_TO_SDK_VERSION. The raw value returned by the service is available from placementStrategyAsString().

Returns:

EC2 Placement Group strategy associated with instance role.

Starting with Amazon EMR version 5.23.0, the only supported placement strategy is SPREAD for the MASTER instance role.

See Also:

PlacementGroupStrategy

toBuilder

public PlacementGroupConfig.Builder toBuilder()

Specified by:

toBuilder in interface ToCopyableBuilder<PlacementGroupConfig.Builder,PlacementGroupConfig>

builder

public static PlacementGroupConfig.Builder builder()

serializableBuilderClass

public static Class<? extends PlacementGroupConfig.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)

Specified by:

equalsBySdkFields in interface SdkPojo

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