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Java Source Code / Java Documentation » 6.0 JDK Core » security » java.security

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

java.security .AccessController

AccessController
final public class AccessController (Code)

Method Summary
public static void	checkPermission(Permission perm) Determines whether the access request indicated by the specified permission should be allowed or denied, based on the current AccessControlContext and security policy. This method quietly returns if the access request is permitted, or throws a suitable AccessControlException otherwise.
native public static T	doPrivileged(PrivilegedAction<T> action) Performs the specified `PrivilegedAction` with privileges enabled.
native public static T	doPrivileged(PrivilegedAction<T> action, AccessControlContext context) Performs the specified `PrivilegedAction` with privileges enabled and restricted by the specified `AccessControlContext`. The action is performed with the intersection of the permissions possessed by the caller's protection domain, and those possessed by the domains represented by the specified `AccessControlContext`. If the action's `run` method throws an (unchecked) exception, it will propagate through this method. Parameters: action - the action to be performed. Parameters: context - an access control contextrepresenting the restriction to be applied to thecaller's domain's privileges before performingthe specified action.
native public static T	doPrivileged(PrivilegedExceptionAction<T> action) Performs the specified `PrivilegedExceptionAction` with privileges enabled.
native public static T	doPrivileged(PrivilegedExceptionAction<T> action, AccessControlContext context) Performs the specified `PrivilegedExceptionAction` with privileges enabled and restricted by the specified `AccessControlContext`.
public static T	doPrivilegedWithCombiner(PrivilegedAction<T> action) Performs the specified `PrivilegedAction` with privileges enabled.
public static T	doPrivilegedWithCombiner(PrivilegedExceptionAction<T> action) Performs the specified `PrivilegedExceptionAction` with privileges enabled.
public static AccessControlContext	getContext() This method takes a "snapshot" of the current calling context, which includes the current Thread's inherited AccessControlContext, and places it in an AccessControlContext object.
native static AccessControlContext	getInheritedAccessControlContext() Returns the "inherited" AccessControl context.

Method Detail

checkPermission
public static void checkPermission(Permission perm) throws AccessControlException(Code)
	Determines whether the access request indicated by the specified permission should be allowed or denied, based on the current AccessControlContext and security policy. This method quietly returns if the access request is permitted, or throws a suitable AccessControlException otherwise. Parameters: perm - the requested permission. exception: AccessControlException - if the specified permissionis not permitted, based on the current security policy. exception: NullPointerException - if the specified permissionis `null` and is checked based on thesecurity policy currently in effect.

doPrivileged

native public static T doPrivileged(PrivilegedAction<T> action)(Code)

Performs the specified PrivilegedAction with privileges enabled. The action is performed with all of the permissions possessed by the caller's protection domain.

If the action's run method throws an (unchecked) exception, it will propagate through this method.

Note that any DomainCombiner associated with the current AccessControlContext will be ignored while the action is performed.
Parameters:
  action - the action to be performed. the value returned by the action's run method.
exception:
  NullPointerException - if the action is null
See Also:   AccessController.doPrivileged(PrivilegedAction,AccessControlContext)
See Also:   AccessController.doPrivileged(PrivilegedExceptionAction)
See Also:   AccessController.doPrivilegedWithCombiner(PrivilegedAction)
See Also:   java.security.DomainCombiner

doPrivileged
native public static T doPrivileged(PrivilegedAction<T> action, AccessControlContext context)(Code)
	Performs the specified `PrivilegedAction` with privileges enabled and restricted by the specified `AccessControlContext`. The action is performed with the intersection of the permissions possessed by the caller's protection domain, and those possessed by the domains represented by the specified `AccessControlContext`. If the action's `run` method throws an (unchecked) exception, it will propagate through this method. Parameters: action - the action to be performed. Parameters: context - an access control contextrepresenting the restriction to be applied to thecaller's domain's privileges before performingthe specified action. If the context is`null`,then no additional restriction is applied. the value returned by the action's `run` method. exception: NullPointerException - if the action is `null` See Also: AccessController.doPrivileged(PrivilegedAction) See Also: AccessController.doPrivileged(PrivilegedExceptionAction,AccessControlContext)

doPrivileged

native public static T doPrivileged(PrivilegedExceptionAction<T> action) throws PrivilegedActionException(Code)

Performs the specified PrivilegedExceptionAction with privileges enabled. The action is performed with all of the permissions possessed by the caller's protection domain.

If the action's run method throws an unchecked exception, it will propagate through this method.

Note that any DomainCombiner associated with the current AccessControlContext will be ignored while the action is performed.
Parameters:
  action - the action to be performed the value returned by the action's run method
exception:
  PrivilegedActionException - if the specified action'srun method threw a checked exception
exception:
  NullPointerException - if the action is null
See Also:   AccessController.doPrivileged(PrivilegedAction)
See Also:   AccessController.doPrivileged(PrivilegedExceptionAction,AccessControlContext)
See Also:   AccessController.doPrivilegedWithCombiner(PrivilegedExceptionAction)
See Also:   java.security.DomainCombiner

doPrivileged
native public static T doPrivileged(PrivilegedExceptionAction<T> action, AccessControlContext context) throws PrivilegedActionException(Code)
	Performs the specified `PrivilegedExceptionAction` with privileges enabled and restricted by the specified `AccessControlContext`. The action is performed with the intersection of the the permissions possessed by the caller's protection domain, and those possessed by the domains represented by the specified `AccessControlContext`. If the action's `run` method throws an unchecked exception, it will propagate through this method. Parameters: action - the action to be performed Parameters: context - an access control contextrepresenting the restriction to be applied to thecaller's domain's privileges before performingthe specified action. If the context is`null`,then no additional restriction is applied. the value returned by the action's `run` method exception: PrivilegedActionException - if the specified action's`run` methodthrew a checked exception exception: NullPointerException - if the action is `null` See Also: AccessController.doPrivileged(PrivilegedAction) See Also: AccessController.doPrivileged(PrivilegedExceptionAction,AccessControlContext)

doPrivilegedWithCombiner

public static T doPrivilegedWithCombiner(PrivilegedAction<T> action)(Code)

Performs the specified PrivilegedAction with privileges enabled. The action is performed with all of the permissions possessed by the caller's protection domain.

If the action's run method throws an (unchecked) exception, it will propagate through this method.

doPrivilegedWithCombiner

public static T doPrivilegedWithCombiner(PrivilegedExceptionAction<T> action) throws PrivilegedActionException(Code)

Performs the specified PrivilegedExceptionAction with privileges enabled. The action is performed with all of the permissions possessed by the caller's protection domain.

If the action's run method throws an unchecked exception, it will propagate through this method.

This method preserves the current AccessControlContext's DomainCombiner (which may be null) while the action is performed.
Parameters:
  action - the action to be performed. the value returned by the action's run method
exception:
  PrivilegedActionException - if the specified action'srun method threw a checked exception
exception:
  NullPointerException - if the action is null
See Also:   AccessController.doPrivileged(PrivilegedAction)
See Also:   AccessController.doPrivileged(PrivilegedExceptionAction,AccessControlContext)
See Also:   java.security.DomainCombiner
since:
   1.6

getContext
public static AccessControlContext getContext()(Code)
	This method takes a "snapshot" of the current calling context, which includes the current Thread's inherited AccessControlContext, and places it in an AccessControlContext object. This context may then be checked at a later point, possibly in another thread. See Also: AccessControlContext the AccessControlContext based on the current context.

getInheritedAccessControlContext
native static AccessControlContext getInheritedAccessControlContext()(Code)
	Returns the "inherited" AccessControl context. This is the context that existed when the thread was created. Package private so AccessControlContext can use it.

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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