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net.jxta.credential
Interface Credential  

All Known Subinterfaces:

PrivilegedOperation, PrivledgedOperation

All Known Implementing Classes:

AuthenticationCredential

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public interface Credential

Credentials provide the basic mechanisms for securly establishing and communicating identity within JXTA. Credentials have three different roles within JXTA:

• Authentication credentials are associated with authentication methods and are used to provide information required for authentication. Each AuthenticationCredential implementation is specific to its associated Authenticator. Authentication Credentials are normally created by constructing a document which follows a schema provided by the authentication method.
• Identity credentials associate an identity with a peer. The peer may request operations to be performed using that identity. Identity Credentials are created by successfully completing authentication with a Membership Service.
• Priviledged operations associate an operation with an identity. To request a remote peer to perform some operation an application or service provides a PrivilegedOperation and an identity credential along with the request. The remote peer determines if the operation is permitted for the specified identity and if it is permitted, completes the operation.

The XML representation of a Credential uses the following very simple schema. Credential implementations extend this schema as needed.

 <xs:complexType name="Cred">
   <xs:all>
   </xs:all>
 </xs:complexType>
 

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Method Summary
net.jxta.document.StructuredDocument	getDocument(net.jxta.document.MimeMediaType asMimeType)           Write credential into a document.
net.jxta.id.ID	getPeerGroupID()           Returns the peerGroupID associated with this credential
net.jxta.id.ID	getPeerID()           Returns the peerID associated with this credential
net.jxta.service.Service	getSourceService()           Returns the service which generated this credential.
java.lang.Object	getSubject()           Returns the subject of this credential.
boolean	isExpired()           If true then the credential is expired.
boolean	isValid()           Returns true if this credential is currently valid.

 

Method Detail

getPeerGroupID

public net.jxta.id.ID getPeerGroupID()

Returns the peerGroupID associated with this credential

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getPeerID

public net.jxta.id.ID getPeerID()

Returns the peerID associated with this credential

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getSourceService

public net.jxta.service.Service getSourceService()

Returns the service which generated this credential.

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isExpired

public boolean isExpired()

If true then the credential is expired. Some credential implementations may never epxire.

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isValid

public boolean isValid()

Returns true if this credential is currently valid.

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getSubject

public java.lang.Object getSubject()

Returns the subject of this credential. The Objects returned must support Object.equals(Object)>Object.equals(Object) 55 and Object.hashCode()>Object.hashCode() 55 .

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getDocument

public net.jxta.document.StructuredDocument getDocument(net.jxta.document.MimeMediaType asMimeType)
                                                 throws java.lang.Exception

Write credential into a document. asMimeType is a mime media-type specification and provides the form of the document which is being requested. Two standard document forms are defined. "text/plain" encodes the document in a "pretty-print" format for human viewing and "text/xml" which provides an XML format.

Depending on the credential format this document may be cryptographically signed to prevent alteration.

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