sun.security.action

Class GetPropertyAction

java.lang.Object

sun.security.action.GetPropertyAction

All Implemented Interfaces:

java.security.PrivilegedAction<java.lang.String>

public class GetPropertyAction
extends java.lang.Object
implements java.security.PrivilegedAction<java.lang.String>

A convenience class for retrieving the string value of a system property as a privileged action.

An instance of this class can be used as the argument of AccessController.doPrivileged.

The following code retrieves the value of the system property named "prop" as a privileged action:

 String s = java.security.AccessController.doPrivileged
                      (new GetPropertyAction("prop"));
 

Since:

1.2

Author:

Roland Schemers

See Also:

PrivilegedAction, AccessController

Constructor Summary

Constructors

Constructor and Description
GetPropertyAction(java.lang.String theProp) Constructor that takes the name of the system property whose string value needs to be determined.
GetPropertyAction(java.lang.String theProp, java.lang.String defaultVal) Constructor that takes the name of the system property and the default value of that property.

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.String	run() Determines the string 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

GetPropertyAction

public GetPropertyAction(java.lang.String theProp)

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

Parameters:

theProp - the name of the system property.

GetPropertyAction

public GetPropertyAction(java.lang.String theProp,
                 java.lang.String defaultVal)

Constructor that takes the name of the system property and the default value of that property.

Parameters:

theProp - the name of the system property.

defaulVal - the default value.

Method Detail

run

public java.lang.String run()

Determines the string value of the system property whose name was specified in the constructor.

Specified by:

run in interface java.security.PrivilegedAction<java.lang.String>

Returns:

the string value of the system property, or the default value if there is no property with that key.