GuardedObject (Java 2 Platform SE 5.0) (original) (raw)

java.security

Class GuardedObject

java.lang.Object extended by java.security.GuardedObject

All Implemented Interfaces:

Serializable

public class GuardedObject

extends Object

implements Serializable

A GuardedObject is an object that is used to protect access to another object.

A GuardedObject encapsulates a target object and a Guard object, such that access to the target object is possible only if the Guard object allows it. Once an object is encapsulated by a GuardedObject, access to that object is controlled by the getObject method, which invokes thecheckGuard method on the Guard object that is guarding access. If access is not allowed, an exception is thrown.

See Also:

Guard, Permission, Serialized Form

Constructor Summary
[GuardedObject](../../java/security/GuardedObject.html#GuardedObject%28java.lang.Object, java.security.Guard%29)(Object object,Guard guard) Constructs a GuardedObject using the specified object and guard.

Method Summary
Object	getObject() Retrieves the guarded object, or throws an exception if access to the guarded object is denied by the guard.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, [wait](../../java/lang/Object.html#wait%28long, int%29)

Constructor Detail

GuardedObject

public GuardedObject(Object object, Guard guard)

Constructs a GuardedObject using the specified object and guard. If the Guard object is null, then no restrictions will be placed on who can access the object.

Parameters:

object - the object to be guarded.

guard - the Guard object that guards access to the object.

Method Detail

getObject

public Object getObject() throws SecurityException

Retrieves the guarded object, or throws an exception if access to the guarded object is denied by the guard.

Returns:

the guarded object.

Throws:

[SecurityException](../../java/lang/SecurityException.html "class in java.lang") - if access to the guarded object is denied.

Submit a bug or feature
For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.