Stay organized with collections
Save and categorize content based on your preferences.
GuardedObject
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 the
checkGuard method on the Guard object that is
guarding access. If access is not allowed,
an exception is thrown.
Summary
Public constructors |
|---|
GuardedObject(Object object, Guard guard)
Constructs a GuardedObject using the specified object and guard.
|
Public methods |
|---|
Object
|
getObject()
Retrieves the guarded object, or throws an exception if access
to the guarded object is denied by the guard.
|
Inherited methods |
|---|
From class
java.lang.Object
Object
|
clone()
Creates and returns a copy of this object.
|
boolean
|
equals(Object obj)
Indicates whether some other object is "equal to" this one.
|
void
|
finalize()
Called by the garbage collector on an object when garbage collection
determines that there are no more references to the object.
|
final
Class<?>
|
getClass()
Returns the runtime class of this Object.
|
int
|
hashCode()
Returns a hash code value for the object.
|
final
void
|
notify()
Wakes up a single thread that is waiting on this object's
monitor.
|
final
void
|
notifyAll()
Wakes up all threads that are waiting on this object's monitor.
|
String
|
toString()
Returns a string representation of the object.
|
final
void
|
wait(long timeoutMillis, int nanos)
Causes the current thread to wait until it is awakened, typically
by being notified or interrupted, or until a
certain amount of real time has elapsed.
|
final
void
|
wait(long timeoutMillis)
Causes the current thread to wait until it is awakened, typically
by being notified or interrupted, or until a
certain amount of real time has elapsed.
|
final
void
|
wait()
Causes the current thread to wait until it is awakened, typically
by being notified or interrupted.
|
|
Public constructors
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 |
Object: the object to be guarded. |
guard |
Guard: the Guard object that guards access to the object. |
Public methods
getObject
public Object getObject ()
Retrieves the guarded object, or throws an exception if access
to the guarded object is denied by the guard.
| Returns |
|---|
Object |
the guarded object. |
Content and code samples on this page are subject to the licenses described in the Content License. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
Last updated 2025-02-10 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-02-10 UTC."],[],[],null,["# GuardedObject\n\nAdded in [API level 1](/guide/topics/manifest/uses-sdk-element#ApiLevels) \nSummary: [Ctors](#pubctors) \\| [Methods](#pubmethods) \\| [Inherited Methods](#inhmethods) \n\nGuardedObject\n=============\n\n\n`\npublic\n\n\nclass\nGuardedObject\n`\n\n\n`\n\nextends `[Object](/reference/java/lang/Object)`\n\n\n`\n\n`\n\n\nimplements\n\n`[Serializable](/reference/java/io/Serializable)`\n\n\n`\n\n|---|-----------------------------|\n| [java.lang.Object](/reference/java/lang/Object) ||\n| ↳ | java.security.GuardedObject |\n\n\u003cbr /\u003e\n\n*** ** * ** ***\n\nA GuardedObject is an object that is used to protect access to\nanother object.\n\nA GuardedObject encapsulates a target object and a Guard object,\nsuch that access to the target object is possible\nonly if the Guard object allows it.\nOnce an object is encapsulated by a GuardedObject,\naccess to that object is controlled by the `getObject`\nmethod, which invokes the\n`checkGuard` method on the Guard object that is\nguarding access. If access is not allowed,\nan exception is thrown. \n**See also:**\n\n- [Guard](/reference/java/security/Guard)\n- [Permission](/reference/java/security/Permission)\n\nSummary\n-------\n\n| ### Public constructors ||\n|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---|\n| ` `[GuardedObject](/reference/java/security/GuardedObject#GuardedObject(java.lang.Object,%20java.security.Guard))`(`[Object](/reference/java/lang/Object)` object, `[Guard](/reference/java/security/Guard)` guard) ` Constructs a GuardedObject using the specified object and guard. |\n\n| ### Public methods ||\n|------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| ` `[Object](/reference/java/lang/Object) | ` `[getObject](/reference/java/security/GuardedObject#getObject())`() ` Retrieves the guarded object, or throws an exception if access to the guarded object is denied by the guard. |\n\n| ### Inherited methods |\n|-----------------------|---|\n| From class ` `[java.lang.Object](/reference/java/lang/Object)` ` |---------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` `[Object](/reference/java/lang/Object) | ` `[clone](/reference/java/lang/Object#clone())`() ` Creates and returns a copy of this object. | | ` boolean` | ` `[equals](/reference/java/lang/Object#equals(java.lang.Object))`(`[Object](/reference/java/lang/Object)` obj) ` Indicates whether some other object is \"equal to\" this one. | | ` void` | ` `[finalize](/reference/java/lang/Object#finalize())`() ` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. | | ` final `[Class](/reference/java/lang/Class)`\u003c?\u003e` | ` `[getClass](/reference/java/lang/Object#getClass())`() ` Returns the runtime class of this `Object`. | | ` int` | ` `[hashCode](/reference/java/lang/Object#hashCode())`() ` Returns a hash code value for the object. | | ` final void` | ` `[notify](/reference/java/lang/Object#notify())`() ` Wakes up a single thread that is waiting on this object's monitor. | | ` final void` | ` `[notifyAll](/reference/java/lang/Object#notifyAll())`() ` Wakes up all threads that are waiting on this object's monitor. | | ` `[String](/reference/java/lang/String) | ` `[toString](/reference/java/lang/Object#toString())`() ` Returns a string representation of the object. | | ` final void` | ` `[wait](/reference/java/lang/Object#wait(long,%20int))`(long timeoutMillis, int nanos) ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed. | | ` final void` | ` `[wait](/reference/java/lang/Object#wait(long))`(long timeoutMillis) ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed. | | ` final void` | ` `[wait](/reference/java/lang/Object#wait())`() ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*. | ||\n\nPublic constructors\n-------------------\n\n### GuardedObject\n\nAdded in [API level 1](/guide/topics/manifest/uses-sdk-element#ApiLevels) \n\n```\npublic GuardedObject (Object object, \n Guard guard)\n```\n\nConstructs a GuardedObject using the specified object and guard.\nIf the Guard object is null, then no restrictions will\nbe placed on who can access the object.\n\n\u003cbr /\u003e\n\n| Parameters ||\n|----------|--------------------------------------------------------------------|\n| `object` | `Object`: the object to be guarded. \u003cbr /\u003e |\n| `guard` | `Guard`: the Guard object that guards access to the object. \u003cbr /\u003e |\n\nPublic methods\n--------------\n\n### getObject\n\nAdded in [API level 1](/guide/topics/manifest/uses-sdk-element#ApiLevels) \n\n```\npublic Object getObject ()\n```\n\nRetrieves the guarded object, or throws an exception if access\nto the guarded object is denied by the guard.\n\n\u003cbr /\u003e\n\n| Returns ||\n|---------------------------------------|----------------------------|\n| [Object](/reference/java/lang/Object) | the guarded object. \u003cbr /\u003e |\n\n| Throws ||\n|-------------------------------------------------------------|--------------------------------------------|\n| [SecurityException](/reference/java/lang/SecurityException) | if access to the guarded object is denied. |"]]
