Package software.amazon.awssdk.services.emr.model

Class HadoopStepConfig

java.lang.Object

software.amazon.awssdk.services.emr.model.HadoopStepConfig

All Implemented Interfaces:

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

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

A cluster step consisting of a JAR file whose main function will be executed. The main function submits a job for Hadoop to execute and waits for the job to finish or fail.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	HadoopStepConfig.Builder

Method Summary

Modifier and Type	Method	Description
List<String>	args()	The list of command line arguments to pass to the JAR file's main function for execution.
static HadoopStepConfig.Builder	builder()
boolean	equals(Object obj)
boolean	equalsBySdkFields(Object obj)
<T> Optional<T>	getValueForField(String fieldName, Class<T> clazz)
boolean	hasArgs()	For responses, this returns true if the service returned a value for the Args property.
int	hashCode()
boolean	hasProperties()	For responses, this returns true if the service returned a value for the Properties property.
String	jar()	The path to the JAR file that runs during the step.
String	mainClass()	The name of the main class in the specified Java file.
Map<String,String>	properties()	The list of Java properties that are set when the step runs.
List<SdkField<?>>	sdkFields()
static Class<? extends HadoopStepConfig.Builder>	serializableBuilderClass()
HadoopStepConfig.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

jar

public final String jar()

The path to the JAR file that runs during the step.

Returns:

The path to the JAR file that runs during the step.

hasProperties

public final boolean hasProperties()

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

properties

public final Map<String,String> properties()

The list of Java properties that are set when the step runs. You can use these properties to pass key-value pairs to your main function.

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 hasProperties() method.

Returns:

The list of Java properties that are set when the step runs. You can use these properties to pass key-value pairs to your main function.

mainClass

public final String mainClass()

The name of the main class in the specified Java file. If not specified, the JAR file should specify a main class in its manifest file.

Returns:

The name of the main class in the specified Java file. If not specified, the JAR file should specify a main class in its manifest file.

hasArgs

public final boolean hasArgs()

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

args

public final List<String> args()

The list of command line arguments to pass to the JAR file's main function for execution.

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 hasArgs() method.

Returns:

The list of command line arguments to pass to the JAR file's main function for execution.

toBuilder

public HadoopStepConfig.Builder toBuilder()

Specified by:

toBuilder in interface ToCopyableBuilder<HadoopStepConfig.Builder,HadoopStepConfig>

builder

public static HadoopStepConfig.Builder builder()

serializableBuilderClass

public static Class<? extends HadoopStepConfig.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