Subject Class

Reference

Definition

Namespace:: Javax.Security.Auth

Assembly:: Mono.Android.dll

Important

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A Subject represents a grouping of related information for a single entity, such as a person.

[Android.Runtime.Register("javax/security/auth/Subject", DoNotGenerateAcw=true)]
public sealed class Subject : Java.Lang.Object, IDisposable, Java.Interop.IJavaPeerable, Java.IO.ISerializable

[<Android.Runtime.Register("javax/security/auth/Subject", DoNotGenerateAcw=true)>]
type Subject = class
    inherit Object
    interface ISerializable
    interface IJavaObject
    interface IDisposable
    interface IJavaPeerable

Inheritance: Object

Object
Subject

Attributes: RegisterAttribute

Implements: IJavaObject IJavaPeerable ISerializable IDisposable

Remarks

A Subject represents a grouping of related information for a single entity, such as a person. Such information includes the Subject's identities as well as its security-related attributes (passwords and cryptographic keys, for example).

Subjects may potentially have multiple identities. Each identity is represented as a Principal within the Subject. Principals simply bind names to a Subject. For example, a Subject that happens to be a person, Alice, might have two Principals: one which binds "Alice Bar", the name on her driver license, to the Subject, and another which binds, "999-99-9999", the number on her student identification card, to the Subject. Both Principals refer to the same Subject even though each has a different name.

A Subject may also own security-related attributes, which are referred to as credentials. Sensitive credentials that require special protection, such as private cryptographic keys, are stored within a private credential Set. Credentials intended to be shared, such as public key certificates or Kerberos server tickets are stored within a public credential Set. Different permissions are required to access and modify the different credential Sets.

To retrieve all the Principals associated with a Subject, invoke the getPrincipals method. To retrieve all the public or private credentials belonging to a Subject, invoke the getPublicCredentials method or getPrivateCredentials method, respectively. To modify the returned Set of Principals and credentials, use the methods defined in the Set class. For example:

Subject subject;
                 Principal principal;
                 Object credential;

                 // add a Principal and credential to the Subject
                 subject.getPrincipals().add(principal);
                 subject.getPublicCredentials().add(credential);

This Subject class implements Serializable. While the Principals associated with the Subject are serialized, the credentials associated with the Subject are not. Note that the java.security.Principal class does not implement Serializable. Therefore all concrete Principal implementations associated with Subjects must implement Serializable.

Java documentation for javax.security.auth.Subject.

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Constructors

Subject()	Create an instance of a `Subject` with an empty `Set` of Principals and empty Sets of public and private credentials.
Subject(Boolean, ICollection<IPrincipal>, ICollection<Object>, ICollection<Object>)	Create an instance of a `Subject` with Principals and credentials.

Properties

Class	Returns the runtime class of this `Object`. (Inherited from Object)
Handle	The handle to the underlying Android instance. (Inherited from Object)
IsReadOnly	Query whether this `Subject` is read-only.
JniIdentityHashCode	(Inherited from Object)
JniPeerMembers
PeerReference	(Inherited from Object)
Principals	Return the `Set` of Principals associated with this `Subject`.
PrivateCredentials	Return the `Set` of private credentials held by this `Subject`.
PublicCredentials	Return the `Set` of public credentials held by this `Subject`.
ThresholdClass	This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. (Inherited from Object)
ThresholdType	This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. (Inherited from Object)

Methods

Clone()	Creates and returns a copy of this object. (Inherited from Object)
Dispose()	(Inherited from Object)
Dispose(Boolean)	(Inherited from Object)
DoAs(Subject, IPrivilegedAction)	Perform work as a particular `Subject`.
DoAs(Subject, IPrivilegedExceptionAction)	Perform work as a particular `Subject`.
DoAsPrivileged(Subject, IPrivilegedAction, AccessControlContext)	Perform privileged work as a particular `Subject`.
DoAsPrivileged(Subject, IPrivilegedExceptionAction, AccessControlContext)	Perform privileged work as a particular `Subject`.
Equals(Object)	Indicates whether some other object is "equal to" this one. (Inherited from Object)
GetHashCode()	Returns a hash code value for the object. (Inherited from Object)
GetPrincipals(Class)	Return a `Set` of Principals associated with this `Subject` that are instances or subclasses of the specified `Class`.
GetPrivateCredentials(Class)	Return a `Set` of private credentials associated with this `Subject` that are instances or subclasses of the specified `Class`.
GetPublicCredentials(Class)	Return a `Set` of public credentials associated with this `Subject` that are instances or subclasses of the specified `Class`.
GetSubject(AccessControlContext)	Get the `Subject` associated with the provided `AccessControlContext`.
JavaFinalize()	Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. (Inherited from Object)
Notify()	Wakes up a single thread that is waiting on this object's monitor. (Inherited from Object)
NotifyAll()	Wakes up all threads that are waiting on this object's monitor. (Inherited from Object)
SetHandle(IntPtr, JniHandleOwnership)	Sets the Handle property. (Inherited from Object)
SetReadOnly()	Set this `Subject` to be read-only.
ToArray<T>()	(Inherited from Object)
ToString()	Returns a string representation of the object. (Inherited from Object)
UnregisterFromRuntime()	(Inherited from Object)
Wait()	Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>. (Inherited from Object)
Wait(Int64, Int32)	Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object)
Wait(Int64)	Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object)

Explicit Interface Implementations

IJavaPeerable.Disposed()	(Inherited from Object)
IJavaPeerable.DisposeUnlessReferenced()	(Inherited from Object)
IJavaPeerable.Finalized()	(Inherited from Object)
IJavaPeerable.JniManagedPeerState	(Inherited from Object)
IJavaPeerable.SetJniIdentityHashCode(Int32)	(Inherited from Object)
IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates)	(Inherited from Object)
IJavaPeerable.SetPeerReference(JniObjectReference)	(Inherited from Object)

Extension Methods

JavaCast<TResult>(IJavaObject)	Performs an Android runtime-checked type conversion.
JavaCast<TResult>(IJavaObject)
GetJniTypeName(IJavaPeerable)

Applies to

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