SessionConstraint (OpenAM Project 16.0.0-SNAPSHOT API)

java.lang.Object
- com.iplanet.dpro.session.service.SessionConstraint

```
public class SessionConstraint
extends Object
```
SessionConstraint represents the session quota for a given user and performs the necessary actions based on the session quota limit, If the user reaches maximum allowed session limit , the activation request of new session should be rejected.
If this is the "session upgarde" case, the session quota checking is bypassed when activating the new session. This is due to the fact that during the session upgrade process the old session will not be destroyed until this new session is successfully activated.
The session count however still has to be incremented because there is indeed a new valid session being created. As a result, there is a very small window where both old session and the new session are both valid and if there is another client trying to create a new session for the same user in the meantime, it might not be allowed to do so due to session quota being exceeded. This conservative approach is considered as acceptable here.

Field Summary

Fields
Modifier and Type Field Description

static String DESTROY_OLDEST_SESSION_CLASS

Constructor Summary

Constructors
Constructor Description

SessionConstraint()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected boolean`	`checkQuotaAndPerformAction(InternalSession internalSession)`	Check if the session quota for a given user has been exhausted and perform necessary actions in such as case.
`static int`	`getDefaultSessionQuota()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - DESTROY_OLDEST_SESSION_CLASS
```
public static final String DESTROY_OLDEST_SESSION_CLASS
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - SessionConstraint
```
public SessionConstraint()
```
- Method Detail
  - checkQuotaAndPerformAction
```
protected boolean checkQuotaAndPerformAction(InternalSession internalSession)
```
    Check if the session quota for a given user has been exhausted and perform necessary actions in such as case.
    
    Parameters:
    
    internalSession -
    
    Returns:
    
    true if the session activation request should be rejected, false otherwise.
  - getDefaultSessionQuota
```
public static int getDefaultSessionQuota()
```