org.hibernate.id.enhanced
Class OptimizerFactory

java.lang.Object
  org.hibernate.id.enhanced.OptimizerFactory

public class OptimizerFactory
extends Object

Factory for OptimizerFactory.InitialValueAwareOptimizer instances.

Author:

Steve Ebersole

Nested Class Summary

static class	OptimizerFactory.HiLoOptimizer Optimizer which applies a 'hilo' algorithm in memory to achieve optimization.
static interface	OptimizerFactory.InitialValueAwareOptimizer Marker interface for optimizer which wish to know the user-specified initial value.
static class	OptimizerFactory.LegacyHiLoAlgorithmOptimizer
static class	OptimizerFactory.NoopOptimizer An optimizer that performs no optimization.
static class	OptimizerFactory.OptimizerSupport Common support for optimizer implementations.
static class	OptimizerFactory.PooledLoOptimizer
static class	OptimizerFactory.PooledOptimizer Optimizer which uses a pool of values, storing the next low value of the range in the database.

Field Summary

static String	HILO
static String	LEGACY_HILO
static String	NONE
static String	POOL
static String	POOL_LO

Constructor Summary

OptimizerFactory()

Method Summary

static Optimizer	buildOptimizer(String type, Class returnClass, int incrementSize) Deprecated. Use buildOptimizer(String, Class, int, long) instead
static Optimizer	buildOptimizer(String type, Class returnClass, int incrementSize, long explicitInitialValue) Builds an optimizer

Methods inherited from class java.lang.Object

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

Field Detail

NONE

public static final String NONE

See Also:

Constant Field Values

HILO

public static final String HILO

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Constant Field Values

LEGACY_HILO

public static final String LEGACY_HILO

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Constant Field Values

POOL

public static final String POOL

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Constant Field Values

POOL_LO

public static final String POOL_LO

See Also:

Constant Field Values

Constructor Detail

OptimizerFactory

public OptimizerFactory()

Method Detail

buildOptimizer

public static Optimizer buildOptimizer(String type,
                                       Class returnClass,
                                       int incrementSize)

Deprecated. Use buildOptimizer(String, Class, int, long) instead

Builds an optimizer

Parameters:

type - The optimizer type, either a short-hand name or the OptimizerFactory.InitialValueAwareOptimizer class name.

returnClass - The generated value java type

incrementSize - The increment size.

Returns:

The built optimizer

buildOptimizer

public static Optimizer buildOptimizer(String type,
                                       Class returnClass,
                                       int incrementSize,
                                       long explicitInitialValue)

Builds an optimizer

Parameters:

type - The optimizer type, either a short-hand name or the OptimizerFactory.InitialValueAwareOptimizer class name.

returnClass - The generated value java type

incrementSize - The increment size.

explicitInitialValue - The user supplied initial-value (-1 indicates the user did not specify).

Returns:

The built optimizer