com.ibm.security12.sun.security.action
Class GetIntegerAction

java.lang.Object
  |
  +--com.ibm.security12.sun.security.action.GetIntegerAction

public class GetIntegerAction
extends Object
implements PrivilegedAction

A convenience class for retrieving the integer 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 integer value of the system property named "prop" as a privileged action. Since it does not pass a default value to be used in case the property "prop" is not defined, it has to check the result for null:

 Integer tmp = (Integer)java.security.AccessController.doPrivileged
     (new sun.security.action.GetIntegerAction("prop"));
 int i;
 if (tmp != null) {
     i = tmp.intValue();
 }
 

The following code retrieves the integer value of the system property named "prop" as a privileged action, and also passes a default value to be used in case the property "prop" is not defined:

 int i = ((Integer)java.security.AccessController.doPrivileged(
                         new GetIntegerAction("prop", 3))).intValue();
 

Since:
JDK1.2
Version:
1.5, 09/18/98
Author:
Roland Schemers
See Also:
java.security.PrivilegedAction, java.security.AccessController

Constructor Summary
GetIntegerAction(String theProp)
          Constructor that takes the name of the system property whose integer value needs to be determined.
GetIntegerAction(String theProp, int defaultVal)
          Constructor that takes the name of the system property and the default value of that property.
 
Method Summary
 Object run()
          Determines the integer 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

GetIntegerAction

public GetIntegerAction(String theProp)
Constructor that takes the name of the system property whose integer value needs to be determined.
Parameters:
theProp - the name of the system property.

GetIntegerAction

public GetIntegerAction(String theProp,
                        int 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 Object run()
Determines the integer value of the system property whose name was specified in the constructor.

If there is no property of the specified name, or if the property does not have the correct numeric format, then an Integer object representing the default value that was specified in the constructor is returned, or null if no default value was specified.

Specified by:
run in interface PrivilegedAction
Returns:
the Integer value of the property.