aws-cdk-lib.aws_emr.CfnCluster.HadoopJarStepConfigProperty

HadoopJarStepConfigProperty Struct

The HadoopJarStepConfig property type specifies a job flow step consisting of a JAR file whose main function will be executed.

The main function submits a job for the cluster to execute as a step on the master node, and then waits for the job to finish or fail before executing subsequent steps.

Source

Generated code

Type last changed

v2.93.0 · 23 Aug 2023

Example

// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import { aws_emr as emr } from 'aws-cdk-lib';
const hadoopJarStepConfigProperty: emr.CfnCluster.HadoopJarStepConfigProperty = {
  jar: 'jar',

  // the properties below are optional
  args: ['args'],
  mainClass: 'mainClass',
  stepProperties: [{
    key: 'key',
    value: 'value',
  }],
};

Properties

args?optionalstring[]args?optionaltyping.List[str]args?optionalList<String>Args?optionalstring[]Args?optional*[]*string#

A list of command line arguments passed to the JAR file's main function when executed.

jarstringjarstrjarStringJarstringJar*stringrequired#

A path to a JAR file run during the step.

mainClass?optionalstringmain_class?optionalstrmainClass?optionalStringMainClass?optionalstringMainClass?optional*string#

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.

stepProperties?optionalIResolvable | IResolvable | CfnCluster.KeyValueProperty[]step_properties?optionaltyping.Union[IResolvable, typing.List[typing.Union[IResolvable, KeyValueProperty]]]stepProperties?optionalIResolvableStepProperties?optionalIResolvableStepProperties?optionalinterface{}#

A 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.