Berkeley DB
version 4.8.30

com.sleepycat.db
Class LockDetectMode

java.lang.Object
  extended by com.sleepycat.db.LockDetectMode

public final class LockDetectMode
extends Object

Deadlock detection modes.


Field Summary
static LockDetectMode DEFAULT
          Use whatever lock policy was specified when the database environment was created.
static LockDetectMode EXPIRE
          Reject lock requests which have timed out.
static LockDetectMode MAXLOCKS
          Reject the lock request for the locker ID with the most locks.
static LockDetectMode MAXWRITE
          Reject the lock request for the locker ID with the most write locks.
static LockDetectMode MINLOCKS
          Reject the lock request for the locker ID with the fewest locks.
static LockDetectMode MINWRITE
          Reject the lock request for the locker ID with the fewest write locks.
static LockDetectMode NONE
          Turn off deadlock detection.
static LockDetectMode OLDEST
          Reject the lock request for the locker ID with the oldest lock.
static LockDetectMode RANDOM
          Reject the lock request for a random locker ID.
static LockDetectMode YOUNGEST
          Reject the lock request for the locker ID with the youngest lock.
 
Method Summary
 String toString()
          
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

NONE

public static final LockDetectMode NONE
Turn off deadlock detection.


DEFAULT

public static final LockDetectMode DEFAULT
Use whatever lock policy was specified when the database environment was created. If no lock policy has yet been specified, set the lock policy to DB_LOCK_RANDOM.


EXPIRE

public static final LockDetectMode EXPIRE
Reject lock requests which have timed out. No other deadlock detection is performed.


MAXLOCKS

public static final LockDetectMode MAXLOCKS
Reject the lock request for the locker ID with the most locks.


MAXWRITE

public static final LockDetectMode MAXWRITE
Reject the lock request for the locker ID with the most write locks.


MINLOCKS

public static final LockDetectMode MINLOCKS
Reject the lock request for the locker ID with the fewest locks.


MINWRITE

public static final LockDetectMode MINWRITE
Reject the lock request for the locker ID with the fewest write locks.


OLDEST

public static final LockDetectMode OLDEST
Reject the lock request for the locker ID with the oldest lock.


RANDOM

public static final LockDetectMode RANDOM
Reject the lock request for a random locker ID.


YOUNGEST

public static final LockDetectMode YOUNGEST
Reject the lock request for the locker ID with the youngest lock.

Method Detail

toString

public String toString()

Overrides:
toString in class Object

Berkeley DB
version 4.8.30

Copyright (c) 1996-2009 Oracle. All rights reserved.