org.codehaus.plexus.util.interpolation
Class EnvarBasedValueSource

java.lang.Object
  org.codehaus.plexus.util.interpolation.EnvarBasedValueSource

All Implemented Interfaces:

ValueSource

public class EnvarBasedValueSource
extends java.lang.Object
implements ValueSource

Version:

$Id: EnvarBasedValueSource.java 5956 2007-02-28 08:26:16Z olamy $

Constructor Summary

EnvarBasedValueSource()
Create a new value source for interpolation based on shell environment variables.

EnvarBasedValueSource(boolean caseSensitive)
Create a new value source for interpolation based on shell environment variables.

Method Summary

java.lang.Object

getValue(java.lang.String expression)

Methods inherited from class java.lang.Object

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

Constructor Detail

EnvarBasedValueSource

public EnvarBasedValueSource()
                      throws java.io.IOException

Create a new value source for interpolation based on shell environment variables. In this case, envar keys ARE CASE SENSITIVE.

Throws:

java.io.IOException

EnvarBasedValueSource

public EnvarBasedValueSource(boolean caseSensitive)
                      throws java.io.IOException

Create a new value source for interpolation based on shell environment variables.

Parameters:

caseSensitive - Whether the environment variable key should be treated in a case-sensitive manner for lookups

Throws:

java.io.IOException

Method Detail

getValue

public java.lang.Object getValue(java.lang.String expression)

Specified by:

getValue in interface ValueSource

Returns:

the value related to the expression, or null if not found.