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AllPermission (Java Platform SE 6) - JDK 5 Documentation v6.0, Java 2 SDK 英文文档

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java.security
Class AllPermission

java.lang.Object
  java.security.Permission
      java.security.AllPermission

All Implemented Interfaces:

Serializable, Guard

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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

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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.

Specified by:

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.

Specified by:

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.

See Also:

Object.hashCode(), Hashtable

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hashCode

public int hashCode()

Returns the hash code value for this object.

Specified by:

hashCode in class Permission

Returns:

a hash code value for this object.

See Also:

Object.equals(java.lang.Object), Hashtable

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getActions

public String getActions()

Returns the canonical string representation of the actions.

Specified by:

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

Copyright 2006 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.