Class HadoopStepConfig

java.lang.Object
com.amazonaws.services.elasticmapreduce.model.HadoopStepConfig
All Implemented Interfaces:
Serializable, Cloneable

public class HadoopStepConfig extends Object implements Serializable, Cloneable

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:
  • Constructor Details

    • HadoopStepConfig

      public HadoopStepConfig()
  • Method Details

    • setJar

      public void setJar(String jar)

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

      Parameters:
      jar - The path to the JAR file that runs during the step.
    • getJar

      public String getJar()

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

      Returns:
      The path to the JAR file that runs during the step.
    • withJar

      public HadoopStepConfig withJar(String jar)

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

      Parameters:
      jar - The path to the JAR file that runs during the step.
      Returns:
      Returns a reference to this object so that method calls can be chained together.
    • getProperties

      public Map<String,String> getProperties()

      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.

      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.
    • setProperties

      public void setProperties(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.

      Parameters:
      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.
    • withProperties

      public HadoopStepConfig withProperties(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.

      Parameters:
      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.
      Returns:
      Returns a reference to this object so that method calls can be chained together.
    • addPropertiesEntry

      public HadoopStepConfig addPropertiesEntry(String key, String value)
    • clearPropertiesEntries

      public HadoopStepConfig clearPropertiesEntries()
      Removes all the entries added into Properties. <p> Returns a reference to this object so that method calls can be chained together.
    • setMainClass

      public void setMainClass(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.

      Parameters:
      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.
    • getMainClass

      public 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.

      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.
    • withMainClass

      public HadoopStepConfig withMainClass(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.

      Parameters:
      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:
      Returns a reference to this object so that method calls can be chained together.
    • getArgs

      public List<String> getArgs()

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

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

      public void setArgs(Collection<String> args)

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

      Parameters:
      args - The list of command line arguments to pass to the JAR file's main function for execution.
    • withArgs

      public HadoopStepConfig withArgs(String... args)

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

      NOTE: This method appends the values to the existing list (if any). Use setArgs(java.util.Collection) or withArgs(java.util.Collection) if you want to override the existing values.

      Parameters:
      args - The list of command line arguments to pass to the JAR file's main function for execution.
      Returns:
      Returns a reference to this object so that method calls can be chained together.
    • withArgs

      public HadoopStepConfig withArgs(Collection<String> args)

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

      Parameters:
      args - The list of command line arguments to pass to the JAR file's main function for execution.
      Returns:
      Returns a reference to this object so that method calls can be chained together.
    • toString

      public String toString()
      Returns a string representation of this object; useful for testing and debugging.
      Overrides:
      toString in class Object
      Returns:
      A string representation of this object.
      See Also:
    • equals

      public boolean equals(Object obj)
      Overrides:
      equals in class Object
    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object
    • clone

      public HadoopStepConfig clone()
      Overrides:
      clone in class Object