org.jpox.store.rdbms.poid
Class AbstractRDBMSPoidGenerator

java.lang.Object
  org.jpox.store.poid.AbstractPoidGenerator
      org.jpox.store.poid.AbstractDatastorePoidGenerator
          org.jpox.store.rdbms.poid.AbstractRDBMSPoidGenerator

All Implemented Interfaces:

org.jpox.store.poid.PoidGenerator

Direct Known Subclasses:

DatastoreUUIDHexPoidGenerator, MaxPoidGenerator, SequencePoidGenerator, TablePoidGenerator

public abstract class AbstractRDBMSPoidGenerator
extends org.jpox.store.poid.AbstractDatastorePoidGenerator

Abstract representation of a PoidGenerator for RDBMS datastores. Builds on the base AbstractPoidGenerator, and providing datastore connection and StoreManager information.

Version:

$Revision: 1.8 $

Field Summary

protected org.jpox.ManagedConnection	connection Connection to the datastore.
protected static org.jpox.util.Localiser	LOCALISER_RDBMS Localiser for messages specific to RDBMS generators.

Fields inherited from class org.jpox.store.poid.AbstractDatastorePoidGenerator

connectionProvider, storeMgr

Fields inherited from class org.jpox.store.poid.AbstractPoidGenerator

allocationSize, initialValue, LOCALISER, name, poidBlock, properties

Constructor Summary

AbstractRDBMSPoidGenerator(java.lang.String name, java.util.Properties props)
Constructor.

Method Summary

protected org.jpox.store.poid.PoidBlock	obtainPoidBlock(int number) Get a new PoidBlock with the specified number of ids.
boolean	requiresConnection() Method to reply if the generator requires a connection.

Methods inherited from class org.jpox.store.poid.AbstractDatastorePoidGenerator

setConnectionProvider, setStoreManager

Methods inherited from class org.jpox.store.poid.AbstractPoidGenerator

allocate, createRepository, current, currentValue, getName, getStorageClass, next, nextValue, obtainPoidBlock, requiresRepository, reserveBlock, reserveBlock

Methods inherited from class java.lang.Object

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

Field Detail

LOCALISER_RDBMS

protected static final org.jpox.util.Localiser LOCALISER_RDBMS

Localiser for messages specific to RDBMS generators.

connection

protected org.jpox.ManagedConnection connection

Connection to the datastore.

Constructor Detail

AbstractRDBMSPoidGenerator

public AbstractRDBMSPoidGenerator(java.lang.String name,
                                  java.util.Properties props)

Constructor.

Parameters:

name - Symbolic name for the generator

props - Properties controlling the behaviour of the generator

Method Detail

requiresConnection

public boolean requiresConnection()

Method to reply if the generator requires a connection.

Returns:

Whether a connection is required.

obtainPoidBlock

protected org.jpox.store.poid.PoidBlock obtainPoidBlock(int number)

Get a new PoidBlock with the specified number of ids.

Overrides:

obtainPoidBlock in class org.jpox.store.poid.AbstractPoidGenerator

Parameters:

number - The number of additional ids required

Returns:

the PoidBlock