Class PrivateCredentialPermission

java.lang.Object
java.security.Permission
javax.security.auth.PrivateCredentialPermission
All Implemented Interfaces:
Serializable, Guard
public final class PrivateCredentialPermission extends Permission
This class is used to protect access to private Credentials belonging to a particular Subject. The Subject is represented by a Set of Principals.

The target name of this Permission specifies a Credential class name, and a Set of Principals. The only valid value for this Permission's actions is, "read". The target name must abide by the following syntax: 

      CredentialClass {PrincipalClass "PrincipalName"}*
API Note:
This permission cannot be used for controlling access to resources as the Security Manager is no longer supported.
Since:
1.4
See Also:

  • Constructor Details

    • PrivateCredentialPermission

      public PrivateCredentialPermission(String name, String actions)
      Creates a new PrivateCredentialPermission with the specified name. The name specifies both a Credential class and a Principal Set.
      Parameters:
      name - the name specifying the Credential class and Principal Set.
      actions - the actions specifying that the Credential can be read.
      Throws:
      IllegalArgumentException - if name does not conform to the correct syntax or if actions is not "read".

  • Method Details

    • getCredentialClass

      public String getCredentialClass()
      Returns the Class name of the Credential associated with this PrivateCredentialPermission.
      Returns:
      the Class name of the Credential associated with this PrivateCredentialPermission.

    • getPrincipals

      public String[][] getPrincipals()
      Returns the Principal classes and names associated with this PrivateCredentialPermission. The information is returned as a two-dimensional array (array[x][y]). The 'x' value corresponds to the number of Principal class and name pairs. When (y==0), it corresponds to the Principal class value, and when (y==1), it corresponds to the Principal name value. For example, array[0][0] corresponds to the class name of the first Principal in the array. array[0][1] corresponds to the Principal name of the first Principal in the array.
      Returns:
      the Principal class and names associated with this PrivateCredentialPermission.

    • implies

      public boolean implies(Permission p)
      Checks if this PrivateCredentialPermission implies the specified Permission.

      This method returns true if:

      • p is an instanceof PrivateCredentialPermission and
      • the target name for p is implied by this object's target name. For example: 
          [* P1 "duke"] implies [a.b.Credential P1 "duke"].
  [C1 P1 "duke"] implies [C1 P1 "duke" P2 "dukette"].
  [C1 P2 "dukette"] implies [C1 P1 "duke" P2 "dukette"].
      Specified by:
      implies in class Permission
      Parameters:
      p - the Permission to check against.
      Returns:
      true if this PrivateCredentialPermission implies the specified Permission, false if not.

    • equals

      public boolean equals(Object obj)
      Checks two PrivateCredentialPermission objects for equality. Checks that obj is a PrivateCredentialPermission, and has the same credential class as this object, as well as the same Principals as this object. The order of the Principals in the respective Permission's target names is not relevant.
      Specified by:
      equals in class Permission
      Parameters:
      obj - the object we are testing for equality with this object.
      Returns:
      true if obj is a PrivateCredentialPermission, has the same credential class as this object, and has the same Principals as this object.
      See Also:

    • hashCode

      public int hashCode()
      Returns the hash code value for this object.
      Specified by:
      hashCode in class Permission
      Returns:
      the hash code value for this object
      See Also:

    • getActions

      public String getActions()
      Returns the "canonical string representation" of the actions. This method always returns the String, "read".
      Specified by:
      getActions in class Permission
      Returns:
      the actions (always returns "read").

    • newPermissionCollection

      public PermissionCollection newPermissionCollection()
      Return a homogeneous collection of PrivateCredentialPermissions in a PermissionCollection. No such PermissionCollection is defined, so this method always returns null.
      Overrides:
      newPermissionCollection in class Permission
      Returns:
      null in all cases.