public class GetBooleanAction extends Object implements PrivilegedAction<Boolean>
boolean
value
of a system property as a privileged action.
An instance of this class can be used as the argument of AccessController.doPrivileged
or Security.doPrivileged
.
The following code retrieves the boolean value of the system
property named "prop"
as a privileged action:
boolean b = ((Boolean) Security.doPrivileged( new GetBooleanAction("prop"))).booleanValue();
If the protection domain of the immediate caller of
doPrivileged
or the protection domain of this class
does not imply the permissions necessary for the operation, the
behavior is as if the system property is not defined.
PrivilegedAction
,
AccessController
,
Security
Modifier and Type | Field and Description |
---|---|
private static Logger |
logger |
private String |
theProp |
Constructor and Description |
---|
GetBooleanAction(String theProp)
Constructor that takes the name of the system property whose
boolean value needs to be determined. |
Modifier and Type | Method and Description |
---|---|
Boolean |
run()
Determines the
boolean value of the system
property whose name was specified in the constructor. |
public GetBooleanAction(String theProp)
boolean
value needs to be determined.theProp
- the name of the system propertypublic Boolean run()
boolean
value of the system
property whose name was specified in the constructor. The
value is returned in a Boolean
object.
If the system property is defined to equal the string
"true"
(case insensitive), then this method
returns a Boolean
with the value
true
. Otherwise, this method returns a
Boolean
with the value false
.
run
in interface PrivilegedAction<Boolean>
Boolean
representing the value of
the system propertyCopyright 2007-2013, multiple authors.
Licensed under the Apache License, Version 2.0, see the NOTICE file for attributions.