org.apache.tez.dag.utils

Class EnvironmentUpdateUtils

java.lang.Object

org.apache.tez.dag.utils.EnvironmentUpdateUtils

@InterfaceAudience.Private
public class EnvironmentUpdateUtils
extends Object

A utility class which allows one to dynamically update/change Environment variables

Constructor Summary

Constructors

Constructor and Description
EnvironmentUpdateUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static void	put(String key, String value) Allows dynamic update to the environment variables.
static void	putAll(Map<String,String> additionalEnvironment) Allows dynamic update to a collection of environment variables.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

EnvironmentUpdateUtils

public EnvironmentUpdateUtils()

Method Detail

put

public static void put(String key,
       String value)

Allows dynamic update to the environment variables. After calling put, System.getenv(key) will then return value.

Parameters:

key - System environment variable

value - Value to assign to system environment variable

putAll

public static void putAll(Map<String,String> additionalEnvironment)

Allows dynamic update to a collection of environment variables. After calling putAll, System.getenv(key) will then return value for each entry in the map

Parameters:

additionalEnvironment - Collection where the key is the System environment variable and the value is the value to assign the system environment variable