org.datanucleus.store.rdbms.valuegenerator

Class DatastoreUUIDHexGenerator

java.lang.Object

org.datanucleus.store.valuegenerator.AbstractGenerator<T>

org.datanucleus.store.valuegenerator.AbstractDatastoreGenerator<T>

org.datanucleus.store.rdbms.valuegenerator.AbstractRDBMSGenerator<String>

org.datanucleus.store.rdbms.valuegenerator.DatastoreUUIDHexGenerator

All Implemented Interfaces:

org.datanucleus.store.valuegenerator.ValueGenerator<String>

public final class DatastoreUUIDHexGenerator
extends AbstractRDBMSGenerator<String>

Generator for values using datastore-based UUID generation.

Nested Class Summary

Nested classes/interfaces inherited from class org.datanucleus.store.valuegenerator.AbstractDatastoreGenerator

org.datanucleus.store.valuegenerator.AbstractDatastoreGenerator.ConnectionPreference

Field Summary

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

connection

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

connectionProvider, storeMgr

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

allocationSize, block, initialValue, name, properties, repositoryExists

Fields inherited from interface org.datanucleus.store.valuegenerator.ValueGenerator

PROPERTY_CATALOG_NAME, PROPERTY_CLASS_NAME, PROPERTY_COLUMN_NAME, PROPERTY_FIELD_NAME, PROPERTY_KEY_CACHE_SIZE, PROPERTY_KEY_DATABASE_CACHE_SIZE, PROPERTY_KEY_INITIAL_VALUE, PROPERTY_KEY_MAX_VALUE, PROPERTY_KEY_MIN_VALUE, PROPERTY_ROOT_CLASS_NAME, PROPERTY_SCHEMA_NAME, PROPERTY_SEQUENCE_NAME, PROPERTY_SEQUENCETABLE_CATALOG, PROPERTY_SEQUENCETABLE_NAME_COLUMN, PROPERTY_SEQUENCETABLE_NEXTVAL_COLUMN, PROPERTY_SEQUENCETABLE_SCHEMA, PROPERTY_SEQUENCETABLE_TABLE, PROPERTY_TABLE_NAME

Constructor Summary

Constructors

Constructor and Description
DatastoreUUIDHexGenerator(String name, Properties props) Constructor.

Method Summary

Modifier and Type	Method and Description
static Class	getStorageClass() Accessor for the storage class for POIDs generated with this generator.
protected org.datanucleus.store.valuegenerator.ValueGenerationBlock<String>	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

getConnectionPreference, 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<String> reserveBlock(long size)

Reserve a block of ids.

Specified by:

reserveBlock in class org.datanucleus.store.valuegenerator.AbstractGenerator<String>

Parameters:

size - Block size

Returns:

The reserved block