GSSCredSpi

```
public interface GSSCredSpi
```
This interface is implemented by each mechanism to provide the functionality of a credential. Each GSSCredential uses provider objects implementing this interface. A GSSCredential may have several credential elements underneath it, but each GSSCredSpi object can represent at most 1 credential element.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`void`	`dispose()` Called to invalidate this credential element and release any system recourses and cryptographic information owned by the credential.
`int`	`getAcceptLifetime()` Returns the accept lifetime remaining.
`int`	`getInitLifetime()` Returns the init lifetime remaining.
`int`	`getLifetime()` Returns the lifetime remaining.
`Oid`	`getMechanism()` Returns the oid representing the underlying credential mechanism oid.
`GSSNameSpi`	`getName()` Returns the principal name for this credential.
`int`	`getUsage()` Returns the credential usage.
`void`	`init(GSSNameSpi desiredName, int initLifetime, int acceptLifetime, int usage)` Initialized the credential object.

- Method Detail
  - init
```
void init(GSSNameSpi desiredName,
          int initLifetime,
          int acceptLifetime,
          int usage)
   throws GSSException
```
    Initialized the credential object. Called after the object is first instantiated.
    
    Parameters:
    
    desiredName - - desired name of the principal
    
    initLifetime - - desired lifetime for the init credential; 0 signals use mechanism default
    
    acceptLifetime - - desired lifetime for the accept credential; 0 signals use mechanism default
    
    usage - - the desired usage for this credential
    
    Throws:
    
    - - GSSException may be thrown
    
    GSSException
  - dispose
```
void dispose()
      throws GSSException
```
    Called to invalidate this credential element and release any system recourses and cryptographic information owned by the credential.
    
    Throws:
    
    GSSException - with major codes NO_CRED and FAILURE
  - getName
```
GSSNameSpi getName()
            throws GSSException
```
    Returns the principal name for this credential. The name is in mechanism specific format.
    
    Returns:
    
    GSSNameSpi representing principal name of this credential
    
    Throws:
    
    GSSException - may be thrown
  - getInitLifetime
```
int getInitLifetime()
             throws GSSException
```
    Returns the init lifetime remaining.
    
    Returns:
    
    the init lifetime remaining in seconds
    
    Throws:
    
    GSSException - may be thrown
  - getAcceptLifetime
```
int getAcceptLifetime()
               throws GSSException
```
    Returns the accept lifetime remaining.
    
    Returns:
    
    the accept lifetime remaining in seconds
    
    Throws:
    
    GSSException - may be thrown
  - getLifetime
```
int getLifetime()
         throws GSSException
```
    Returns the lifetime remaining. This should take into account the credential usage, and return the appropriate lifetime. See RFC 2078 for details.
    
    Returns:
    
    the lifetime remaining in seconds
    
    Throws:
    
    GSSException - may be thrown
  - getUsage
```
int getUsage()
      throws GSSException
```
    Returns the credential usage. This must be one GSSCredential.ACCEPT_ONLY, GSSCredential.INITIATE_ONLY, or GSSCredential.INITIATE_AND_ACCEPT.
    
    Returns:
    
    the credential usage
    
    Throws:
    
    GSSException - may be thrown
  - getMechanism
```
Oid getMechanism()
```
    Returns the oid representing the underlying credential mechanism oid.
    
    Returns:
    
    the Oid for this credential mechanism
    
    Throws:
    
    GSSException - may be thrown

Interface GSSCredSpi

Method Summary

Method Detail

init

dispose

getName

getInitLifetime

getAcceptLifetime

getLifetime

getUsage

getMechanism