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Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class AllPermission - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

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java.security
Class AllPermission

java.lang.Object
  |
  +--java.security.Permission
        |
        +--java.security.AllPermission

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public final class AllPermission

extends Permission

The AllPermission is a permission that implies all other permissions.

Note: Granting AllPermission should be done with extreme care, as it implies all other permissions. Thus, it grants code the ability to run with security disabled. Extreme caution should be taken before granting such a permission to code. This permission should be used only during testing, or in extremely rare cases where an application or applet is completely trusted and adding the necessary permissions to the policy is prohibitively cumbersome.

See Also:

Permission, AccessController, Permissions, PermissionCollection, SecurityManager, Serialized Form

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Constructor Summary

AllPermission()           Creates a new AllPermission object.

AllPermission(String name, String actions)           Creates a new AllPermission object.

 

Method Summary
boolean	equals(Object obj)           Checks two AllPermission objects for equality.
String	getActions()           Returns the canonical string representation of the actions.
int	hashCode()           Returns the hash code value for this object.
boolean	implies(Permission p)           Checks if the specified permission is "implied" by this object.
PermissionCollection	newPermissionCollection()           Returns a new PermissionCollection object for storing AllPermission objects.

 

Methods inherited from class java.security.Permission

checkGuard, getName, toString

 

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

 

Constructor Detail

AllPermission

public AllPermission()

Creates a new AllPermission object.

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AllPermission

public AllPermission(String name,
                     String actions)

Creates a new AllPermission object. This constructor exists for use by the Policy object to instantiate new Permission objects.

Parameters:

name - ignored

actions - ignored.

Method Detail

implies

public boolean implies(Permission p)

Checks if the specified permission is "implied" by this object. This method always returns true.

Overrides:

implies in class Permission

Parameters:

p - the permission to check against.

Returns:

return

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equals

public boolean equals(Object obj)

Checks two AllPermission objects for equality. Two AllPermission objects are always equal.

Overrides:

equals in class Permission

Parameters:

obj - the object we are testing for equality with this object.

Returns:

true if obj is an AllPermission, false otherwise.

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hashCode

public int hashCode()

Returns the hash code value for this object.

Overrides:

hashCode in class Permission

Returns:

a hash code value for this object.

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getActions

public String getActions()

Returns the canonical string representation of the actions.

Overrides:

getActions in class Permission

Returns:

the actions.

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newPermissionCollection

public PermissionCollection newPermissionCollection()

Returns a new PermissionCollection object for storing AllPermission objects.

Overrides:

newPermissionCollection in class Permission

Returns:

a new PermissionCollection object suitable for storing AllPermissions.

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