Package software.amazon.awscdk.services.emr

Interface CfnCluster.HadoopJarStepConfigProperty

All Superinterfaces:
software.amazon.jsii.JsiiSerializable
All Known Implementing Classes:
CfnCluster.HadoopJarStepConfigProperty.Jsii$Proxy
Enclosing class:
CfnCluster
@Stability(Stable) public static interface CfnCluster.HadoopJarStepConfigProperty extends software.amazon.jsii.JsiiSerializable
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.

Example: 

 // The code below shows an example of how to instantiate this type.
 // The values are placeholders you should change.
 import software.amazon.awscdk.services.emr.*;
 HadoopJarStepConfigProperty hadoopJarStepConfigProperty = HadoopJarStepConfigProperty.builder()
         .jar("jar")
         // the properties below are optional
         .args(List.of("args"))
         .mainClass("mainClass")
         .stepProperties(List.of(KeyValueProperty.builder()
                 .key("key")
                 .value("value")
                 .build()))
         .build();

  • Method Details

    • getJar

      @Stability(Stable) @NotNull String getJar()
      A path to a JAR file run during the step.

    • getArgs

      @Stability(Stable) @Nullable default List<String> getArgs()
      A list of command line arguments passed to the JAR file's main function when executed.

    • getMainClass

      @Stability(Stable) @Nullable default String getMainClass()
      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.

    • getStepProperties

      @Stability(Stable) @Nullable default Object getStepProperties()
      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.

    • builder

      @Stability(Stable) static CfnCluster.HadoopJarStepConfigProperty.Builder builder()
      Returns:
      a CfnCluster.HadoopJarStepConfigProperty.Builder of CfnCluster.HadoopJarStepConfigProperty