Package java.security

Class BasicPermission

java.lang.Object

java.security.Permission

java.security.BasicPermission

All Implemented Interfaces:

Serializable, Guard

Direct Known Subclasses:

PropertyPermission, RuntimePermission

public abstract class BasicPermission
extends Permission
implements Serializable

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
BasicPermission(String name)	Creates a new BasicPermission with the specified name.
BasicPermission(String name, String actions)	Creates a new BasicPermission object with the specified name.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)	Checks two BasicPermission objects for equality.
String	getActions()	Returns the canonical string representation of the actions, which currently is the empty string "", since there are no actions for a BasicPermission.
int	hashCode()	Returns the hash code value for this object.
boolean	implies(Permission p)	Checks if the specified permission is "implied" by this object.

Methods inherited from class java.security.Permission

getName, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

BasicPermission

public BasicPermission(String name)

Creates a new BasicPermission with the specified name. Name is the symbolic name of the permission, such as "setFactory", "print.queueJob", or "topLevelWindow", etc.

Parameters:

name - the name of the BasicPermission.

Throws:

NullPointerException - if name is null.

IllegalArgumentException - if name is empty.

BasicPermission

public BasicPermission(String name,
                       @Nullable
                       String actions)

Creates a new BasicPermission object with the specified name. The name is the symbolic name of the BasicPermission, and the actions String is currently unused.

Parameters:

name - the name of the BasicPermission.

actions - ignored.

Throws:

NullPointerException - if name is null.

IllegalArgumentException - if name is empty.

Method Detail

equals

public boolean equals(@Nullable
                      Object obj)

Checks two BasicPermission objects for equality. Checks that obj's class is the same as this object's class and has the same name as this object.

Specified by:

equals in class Permission

Parameters:

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

Returns:

true if obj's class is the same as this object's class and has the same name as this BasicPermission object, false otherwise.

See Also:

Object.hashCode(), HashMap

getActions

public String getActions()

Returns the canonical string representation of the actions, which currently is the empty string "", since there are no actions for a BasicPermission.

Specified by:

getActions in class Permission

Returns:

the empty string "".

hashCode

public int hashCode()

Returns the hash code value for this object. The hash code used is the hash code of the name, that is, getName().hashCode(), where getName is from the Permission superclass.

Specified by:

hashCode in class Permission

Returns:

a hash code value for this object.

See Also:

Object.equals(java.lang.Object), System.identityHashCode(java.lang.Object)

implies

public boolean implies(Permission p)

Checks if the specified permission is "implied" by this object.

More specifically, this method returns true if:

• p's class is the same as this object's class, and
• p's name equals or (in the case of wildcards) is implied by this object's name. For example, "a.b.*" implies "a.b.c".

Specified by:

implies in class Permission

Parameters:

p - the permission to check against.

Returns:

true if the passed permission is equal to or implied by this permission, false otherwise.