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

java.lang.Object
  extended by org.apache.ojb.broker.util.sequence.AbstractSequenceManager
      extended by org.apache.ojb.broker.util.sequence.SequenceManagerMSSQLGuidImpl
All Implemented Interfaces:
SequenceManager

public class SequenceManagerMSSQLGuidImpl
extends AbstractSequenceManager

An Implementation Class that will retrieve a valid new value for a PK field that is of type 'uniqueidentifier'. Since values for these types are generated through a 'newid()' call to MSSQL Server, this class is only valid for MSSQL Server 7.0 and up.
This SequenceManager can be used for any classes that have their PK defined as a 'uniqueidetifier'

Version:
$Id: SequenceManagerMSSQLGuidImpl.java 365232 2005-12-21 22:36:07Z tomdz $
Author:
Andrew Clute

Field Summary
 
Fields inherited from class org.apache.ojb.broker.util.sequence.AbstractSequenceManager
PROPERTY_AUTO_NAMING
 
Constructor Summary
SequenceManagerMSSQLGuidImpl(PersistenceBroker broker)
          Constructor used by SequenceManagerFactory
 
Method Summary
 java.lang.Object getUniqueValue(FieldDescriptor field)
          Returns a unique object for the given field attribute.
 
Methods inherited from class org.apache.ojb.broker.util.sequence.AbstractSequenceManager
afterStore, calculateSequenceName, getBrokerForClass, getConfigurationProperties, getConfigurationProperty, getPlatform, setConfigurationProperties, setConfigurationProperty, setReferenceFKs, useAutoNaming
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

SequenceManagerMSSQLGuidImpl

public SequenceManagerMSSQLGuidImpl(PersistenceBroker broker)
Constructor used by SequenceManagerFactory

Parameters:
broker - PB instance to perform the id generation.
Method Detail

getUniqueValue

public java.lang.Object getUniqueValue(FieldDescriptor field)
                                throws SequenceManagerException
Description copied from class: AbstractSequenceManager
Returns a unique object for the given field attribute. The returned value takes in account the jdbc-type and the FieldConversion.sql2java() conversion defined for field. The returned object is unique accross all tables in the extent of class the field belongs to.

Specified by:
getUniqueValue in interface SequenceManager
Overrides:
getUniqueValue in class AbstractSequenceManager
Throws:
SequenceManagerException


(C) 2002 - 2006 Apache Software Foundation
All rights reserved. Published under the Apache License 2.0.
http://db.apache.org/ojb
Version: 1.0.4, 2005-12-30