Interface EnvLookup

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface EnvLookup

Resolves process environment variables by name. Tests may substitute a map-backed implementation.

Method Summary

Modifier and Type	Method	Description
String	get(String name)	Returns the value of the environment variable, or null if not set.
static EnvLookup	system()	Returns a lookup that reads environment variables from the current process.

Method Details

get

String get(String name)

Returns the value of the environment variable, or null if not set.

Parameters:

name - the environment variable name

Returns:

the variable's value, or null if not set

system

static EnvLookup system()

Returns a lookup that reads environment variables from the current process.