org.apache.ojb.broker.util.sequence
Class SequenceManagerInMemoryImpl

java.lang.Object
  extended byorg.apache.ojb.broker.util.sequence.AbstractSequenceManager
      extended byorg.apache.ojb.broker.util.sequence.SequenceManagerInMemoryImpl
All Implemented Interfaces:
SequenceManager

public class SequenceManagerInMemoryImpl
extends AbstractSequenceManager

Very fast in memory sequence manager implementation, only the first time an id was requested for a class, the manager query the database for the max id in requested column - all following request were performed in memory.

Limitations:

Implementation configuration properties:

Property Key Property Values
autoNaming Default was 'true'. If set 'true' OJB try to build a sequence name automatic if none found in field-descriptor and set this generated name as sequence-name in field-descriptor. If set 'false' OJB throws an exception if none sequence name was found in field-descriptor.



Version:
$Id: SequenceManagerInMemoryImpl.java,v 1.12 2003/08/13 18:16:10 arminw Exp $
Author:
Armin Waibel
See Also:
SequenceManager, SequenceManagerFactory, SequenceManagerHelper

Field Summary
 
Fields inherited from class org.apache.ojb.broker.util.sequence.AbstractSequenceManager
PROPERTY_AUTO_NAMING
 
Constructor Summary
SequenceManagerInMemoryImpl(PersistenceBroker broker)
           
 
Methods inherited from class org.apache.ojb.broker.util.sequence.AbstractSequenceManager
afterStore, calculateSequenceName, getBrokerForClass, getConfigurationProperties, getConfigurationProperty, getPlatform, getUniqueValue, setConfigurationProperties, setConfigurationProperty, setReferenceFKs, useAutoNaming
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

SequenceManagerInMemoryImpl

public SequenceManagerInMemoryImpl(PersistenceBroker broker)


Authors: Thomas Mahler and others. (C) 2000 - 2003 Apache Software Foundation
All rights reserved. Published under the Apache License.
http://db.apache.org/ojb
Version: 1.0.rc5, 2003-12-14