程序包 org.hibernate.id.enhanced

枚举 StandardOptimizerDescriptor

java.lang.Object

java.lang.Enum<StandardOptimizerDescriptor>

org.hibernate.id.enhanced.StandardOptimizerDescriptor

所有已实现的接口:

Serializable, Comparable<StandardOptimizerDescriptor>

public enum StandardOptimizerDescriptor
extends Enum<StandardOptimizerDescriptor>

Enumeration of the standard Hibernate id generation optimizers.

作者:

Steve Ebersole

枚举常量概要

枚举常量

枚举常量	说明
HILO	Describes the optimizer for using a custom "hilo" algorithm optimization
LEGACY_HILO	Describes the optimizer for using a custom "hilo" algorithm optimization, following the legacy Hibernate hilo algorithm
NONE	Describes the optimizer for no optimization
POOLED	Describes the optimizer for use with tables/sequences that store the chunk information.
POOLED_LO	Describes the optimizer for use with tables/sequences that store the chunk information.
POOLED_LOTL	Describes the optimizer for use with tables/sequences that store the chunk information.

方法概要

修饰符和类型	方法	说明
static StandardOptimizerDescriptor	fromExternalName(String externalName)	Interpret the incoming external name into the appropriate enum value
String	getExternalName()
Class<? extends Optimizer>	getOptimizerClass()
boolean	isPooled()
static StandardOptimizerDescriptor	valueOf(String name)	返回带有指定名称的该类型的枚举常量。
static StandardOptimizerDescriptor[]	values()	按照声明该枚举类型的常量的顺序, 返回 包含这些常量的数组。

从类继承的方法 java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

从类继承的方法 java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

枚举常量详细资料

NONE

public static final StandardOptimizerDescriptor NONE

Describes the optimizer for no optimization

HILO

public static final StandardOptimizerDescriptor HILO

Describes the optimizer for using a custom "hilo" algorithm optimization

LEGACY_HILO

public static final StandardOptimizerDescriptor LEGACY_HILO

Describes the optimizer for using a custom "hilo" algorithm optimization, following the legacy Hibernate hilo algorithm

POOLED

public static final StandardOptimizerDescriptor POOLED

Describes the optimizer for use with tables/sequences that store the chunk information. Here, specifically the hi value is stored in the database.

POOLED_LO

public static final StandardOptimizerDescriptor POOLED_LO

Describes the optimizer for use with tables/sequences that store the chunk information. Here, specifically the lo value is stored in the database.

POOLED_LOTL

public static final StandardOptimizerDescriptor POOLED_LOTL

Describes the optimizer for use with tables/sequences that store the chunk information. Here, specifically the lo value is stored in the database and ThreadLocal used to cache the generation state.

方法详细资料

values

public static StandardOptimizerDescriptor[] values()

按照声明该枚举类型的常量的顺序, 返回 包含这些常量的数组。该方法可用于迭代 常量, 如下所示:

for (StandardOptimizerDescriptor c : StandardOptimizerDescriptor.values())
    System.out.println(c);

返回:

按照声明该枚举类型的常量的顺序返回的包含这些常量的数组

valueOf

public static StandardOptimizerDescriptor valueOf(String name)

返回带有指定名称的该类型的枚举常量。 字符串必须与用于声明该类型的枚举常量的 标识符完全匹配。(不允许有多余 的空格字符。)

参数:

name - 要返回的枚举常量的名称。

返回:

返回带有指定名称的枚举常量

抛出:

IllegalArgumentException - 如果该枚举类型没有带有指定名称的常量

NullPointerException - 如果参数为空值

getExternalName

public String getExternalName()

getOptimizerClass

public Class<? extends Optimizer> getOptimizerClass()

isPooled

public boolean isPooled()

fromExternalName

public static StandardOptimizerDescriptor fromExternalName(String externalName)

Interpret the incoming external name into the appropriate enum value

参数:

externalName - The external name

返回:

The corresponding enum value; if no external name is supplied, NONE is returned; if an unrecognized external name is supplied, null is returned