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package sun.security.action;
A convenience class for loading a system library as a privileged action.
An instance of this class can be used as the argument of
AccessController.doPrivileged
.
The following code attempts to load the system library named
"lib"
as a privileged action:
java.security.AccessController.doPrivileged(new LoadLibraryAction("lib"));
Author: Roland Schemers See Also: Since: 1.2
/**
* A convenience class for loading a system library as a privileged action.
*
* <p>An instance of this class can be used as the argument of
* <code>AccessController.doPrivileged</code>.
*
* <p>The following code attempts to load the system library named
* <code>"lib"</code> as a privileged action: <p>
*
* <pre>
* java.security.AccessController.doPrivileged(new LoadLibraryAction("lib"));
* </pre>
*
* @author Roland Schemers
* @see java.security.PrivilegedAction
* @see java.security.AccessController
* @since 1.2
*/
public class LoadLibraryAction implements java.security.PrivilegedAction<Void> {
private String theLib;
Constructor that takes the name of the system library that needs to be
loaded.
The manner in which a library name is mapped to the
actual system library is system dependent.
Params: - theLib – the name of the library.
/**
* Constructor that takes the name of the system library that needs to be
* loaded.
*
* <p>The manner in which a library name is mapped to the
* actual system library is system dependent.
*
* @param theLib the name of the library.
*/
public LoadLibraryAction(String theLib) {
this.theLib = theLib;
}
Loads the system library whose name was specified in the constructor.
/**
* Loads the system library whose name was specified in the constructor.
*/
public Void run() {
System.loadLibrary(theLib);
return null;
}
}