public final class SystemProfileValueSource extends Object implements ProfileValueSource
ProfileValueSource which uses system properties as
 the underlying source.| Modifier and Type | Method and Description | 
|---|---|
| String | get(String key)Get the profile value indicated by the specified key from the
 system properties. | 
| static SystemProfileValueSource | getInstance()Obtain the canonical instance of this ProfileValueSource. | 
public static final SystemProfileValueSource getInstance()
public String get(String key)
get in interface ProfileValueSourcekey - the name of the profile valuenull
 if there is no profile value with that keySystem.getProperty(String)