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"}*For example, the following permission grants access to the com.sun.PrivateCredential owned by Subjects which have a com.sun.Principal with the name, "duke". Note that although this example, as well as all the examples below, do not contain Codebase, SignedBy, or Principal information in the grant statement (for simplicity reasons), actual policy configurations should specify that information when appropriate.
grant { permission javax.security.auth.PrivateCredentialPermission "com.sun.PrivateCredential com.sun.Principal \"duke\"", "read"; };If CredentialClass is "*", then access is granted to all private Credentials belonging to the specified
Subject
. If "PrincipalName" is "*", then access is granted to the specified Credential owned by any Subject
that has the specified Principal
(the actual PrincipalName doesn't matter). For example, the following grants access to the a.b.Credential owned by any Subject
that has an a.b.Principal. grant { permission javax.security.auth.PrivateCredentialPermission "a.b.Credential a.b.Principal "*"", "read"; };If both the PrincipalClass and "PrincipalName" are "*", then access is granted to the specified Credential owned by any
Subject
. In addition, the PrincipalClass/PrincipalName pairing may be repeated:
grant { permission javax.security.auth.PrivateCredentialPermission "a.b.Credential a.b.Principal "duke" c.d.Principal "dukette"", "read"; };The above grants access to the private Credential, "a.b.Credential", belonging to a
Subject
with at least two associated Principals: "a.b.Principal" with the name, "duke", and "c.d.Principal", with the name, "dukette".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.
name
- the name specifying the Credential class and Principal
Set.
actions
- the actions specifying that the Credential can be read.IllegalArgumentException
- if name
does not conform to the correct syntax or if actions
is not "read".public String getCredentialClass()
Returns the Class name of the Credential associated with this PrivateCredentialPermission
.
PrivateCredentialPermission
.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.
Principal
class and names associated with this PrivateCredentialPermission
.public boolean implies(Permission p)
Checks if this PrivateCredentialPermission
implies the specified Permission
.
This method returns true if:
[* 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"].
implies
in class Permission
p
- the Permission
to check against.PrivateCredentialPermission
implies the specified Permission
, false if not.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.
equals
in class Permission
obj
- the object we are testing for equality with this object.PrivateCredentialPermission
, has the same credential class as this object, and has the same Principals as this object.Object.hashCode()
, HashMap
public int hashCode()
Returns the hash code value for this object.
hashCode
in class Permission
Object.equals(java.lang.Object)
, System.identityHashCode(java.lang.Object)
public String getActions()
Returns the "canonical string representation" of the actions. This method always returns the String, "read".
getActions
in class Permission
public PermissionCollection newPermissionCollection()
Return a homogeneous collection of PrivateCredentialPermissions in a PermissionCollection
. No such PermissionCollection
is defined, so this method always returns null
.
newPermissionCollection
in class Permission
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