org.apache.river.action

Class GetBooleanAction

java.lang.Object

org.apache.river.action.GetBooleanAction

All Implemented Interfaces:

PrivilegedAction<Boolean>

public class GetBooleanAction
extends Object
implements PrivilegedAction<Boolean>

A convenience class for retrieving the 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.

Since:

2.0

Author:

Sun Microsystems, Inc.

See Also:

PrivilegedAction, AccessController, Security

Constructor Summary

Constructors

Constructor and Description
GetBooleanAction(String theProp) Constructor that takes the name of the system property whose boolean value needs to be determined.

Method Summary

Modifier and Type	Method and Description
Boolean	run() Determines the boolean value of the system property whose name was specified in the constructor.

Methods inherited from class java.lang.Object

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

Constructor Detail

GetBooleanAction

public GetBooleanAction(String theProp)

Constructor that takes the name of the system property whose boolean value needs to be determined.

Parameters:

theProp - the name of the system property

Method Detail

run

public Boolean run()

Determines the 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.

Specified by:

run in interface PrivilegedAction<Boolean>

Returns:

a Boolean representing the value of the system property