org.datanucleus.store.rdbms.valuegenerator
Class DatastoreUUIDHexGenerator

java.lang.Object
  org.datanucleus.store.valuegenerator.AbstractGenerator
      org.datanucleus.store.valuegenerator.AbstractDatastoreGenerator
          org.datanucleus.store.rdbms.valuegenerator.AbstractRDBMSGenerator
              org.datanucleus.store.rdbms.valuegenerator.DatastoreUUIDHexGenerator

All Implemented Interfaces:

org.datanucleus.store.valuegenerator.ValueGenerator

public final class DatastoreUUIDHexGenerator
extends AbstractRDBMSGenerator

Generator for values using datastore-based UUID generation.

Field Summary

Fields inherited from class org.datanucleus.store.rdbms.valuegenerator.AbstractRDBMSGenerator

connection, LOCALISER_RDBMS

Fields inherited from class org.datanucleus.store.valuegenerator.AbstractDatastoreGenerator

connectionProvider, storeMgr

Fields inherited from class org.datanucleus.store.valuegenerator.AbstractGenerator

allocationSize, block, initialValue, LOCALISER, name, properties, repositoryExists

Constructor Summary

DatastoreUUIDHexGenerator(String name, Properties props)
Constructor.

Method Summary

static Class	getStorageClass() Accessor for the storage class for POIDs generated with this generator.
protected org.datanucleus.store.valuegenerator.ValueGenerationBlock	reserveBlock(long size) Reserve a block of ids.

Methods inherited from class org.datanucleus.store.rdbms.valuegenerator.AbstractRDBMSGenerator

obtainGenerationBlock, requiresConnection

Methods inherited from class org.datanucleus.store.valuegenerator.AbstractDatastoreGenerator

setConnectionProvider, setStoreManager

Methods inherited from class org.datanucleus.store.valuegenerator.AbstractGenerator

allocate, createRepository, current, currentValue, getName, next, nextValue, obtainGenerationBlock, repositoryExists, requiresRepository, reserveBlock

Methods inherited from class java.lang.Object

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

Constructor Detail

DatastoreUUIDHexGenerator

public DatastoreUUIDHexGenerator(String name,
                                 Properties props)

Constructor.

Parameters:

name - Symbolic name for this generator

props - Properties defining the behaviour of this generator

Method Detail

getStorageClass

public static Class getStorageClass()

Accessor for the storage class for POIDs generated with this generator.

Returns:

Storage class (in this case String.class)

reserveBlock

protected org.datanucleus.store.valuegenerator.ValueGenerationBlock reserveBlock(long size)

Reserve a block of ids.

Specified by:

reserveBlock in class org.datanucleus.store.valuegenerator.AbstractGenerator

Parameters:

size - Block size

Returns:

The reserved block