Java in a Nutshell, 5th Edition

Name

AccessControlContext

Synopsis

This class encapsulates the state of a call stack. The checkPermission( ) method can make access-control decisions based on the saved state of the call stack. Access-control checks are usually performed by the AccessController.checkPermission( ) method, which checks that the current call stack has the required permissions. Sometimes, however, it is necessary to make access-control decisions based on a previous state of the call stack. Call AccessController.getContext( ) to create an AccessControlContext for a particular call stack. In Java 1.3, this class has constructors that specify a custom context in the form of an array of ProtectionDomain objects and that associate a DomainCombiner object with an existing AccessControlContext. This class is used only by system-level code; typical applications rarely need to use it.

public final class AccessControlContext {
// Public Constructors
     public AccessControlContext(ProtectionDomain[ ] context);  
1.3  public AccessControlContext(AccessControlContext acc, DomainCombiner 
        combiner);  
// Public Instance Methods
     public void checkPermission(Permission perm) throws AccessControlException;  
1.3  public DomainCombiner getDomainCombiner( );  
// Public Methods Overriding Object
     public boolean equals(Object obj);  
     public int hashCode( );  
}

Passed To

AccessController.doPrivileged( ), javax.security.auth.Subject.{doAsPrivileged( ), getSubject( )}

Returned By

AccessController.getContext( )