Package de.aristaflow.adept2.base.sessionmanagement

Class SessionLock.AbstractLockCount

java.lang.Object

de.aristaflow.adept2.base.sessionmanagement.SessionLock.AbstractLockCount

All Implemented Interfaces:

LockCountManager<SessionToken>

Direct Known Subclasses:

SessionLock.ChildSessionIDLockCount, SessionLock.SessionIdLockCount

Enclosing class:

SessionLock

public static class SessionLock.AbstractLockCount
extends Object
implements LockCountManager<SessionToken>

A LockCountManager counting session tokens with an equality based on the UUID returned by a Function provided by subclasses.

Constructor Summary

Constructors

Constructor	Description
AbstractLockCount(Function<SessionToken,UUID> idFunction)	Creates a new LockCountManager for session tokens with an equality based on the session IDs provided by the designated function.

Method Summary

Modifier and Type	Method	Description
int	decreaseAndGetLockCount(SessionToken session)	Decreases the number of times the designated object holds the lock.
String	getLockOwner()	Returns a string representation of one object that currently has a lock.
boolean	hasLock(SessionToken session)	Returns whether the designated object has a lock at least once.
boolean	hasLocks()	Returns whether this lock count manager knows at least one object that has a lock.
int	increaseAndGetLockCount(SessionToken session)	Increases the number of times the designated object holds the lock.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AbstractLockCount

public AbstractLockCount(Function<SessionToken,UUID> idFunction)

Creates a new LockCountManager for session tokens with an equality based on the session IDs provided by the designated function.

Parameters:

idFunction - The function returning a UUID for a session token.

Method Detail

hasLock

public boolean hasLock(SessionToken session)

Description copied from interface: LockCountManager

Returns whether the designated object has a lock at least once.

Specified by:

hasLock in interface LockCountManager<SessionToken>

Parameters:

session - The object which is checked whether it holds a lock.

Returns:

Whether the designated object has a lock at least once.

hasLocks

public boolean hasLocks()

Description copied from interface: LockCountManager

Returns whether this lock count manager knows at least one object that has a lock.

Specified by:

hasLocks in interface LockCountManager<SessionToken>

Returns:

Whether at least one object has a lock.

getLockOwner

public String getLockOwner()

Description copied from interface: LockCountManager

Returns a string representation of one object that currently has a lock. This can be used for user information or tracking purpose. A locking object may not be returned since this would allow to unlock.

Specified by:

getLockOwner in interface LockCountManager<SessionToken>

Returns:

A string representation of one object that currently has a lock.

increaseAndGetLockCount

public int increaseAndGetLockCount(SessionToken session)

Description copied from interface: LockCountManager

Increases the number of times the designated object holds the lock.

Specified by:

increaseAndGetLockCount in interface LockCountManager<SessionToken>

Parameters:

session - The object which has acquired the lock (once again).

Returns:

The number of times the designated object has the lock after the increment.

decreaseAndGetLockCount

public int decreaseAndGetLockCount(SessionToken session)

Description copied from interface: LockCountManager

Decreases the number of times the designated object holds the lock. If the object does not hold the lock, the decrement will be ignored.

Specified by:

decreaseAndGetLockCount in interface LockCountManager<SessionToken>

Parameters:

session - The object which has released the lock (once again).

Returns:

The number of times the designated object has the lock after the decrement.