DiscriminatorType (Java EE 5 SDK)

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Java EE 5 SDK

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摘要: 嵌套 | ENUM 构造器 | 字段 | 方法

详细信息: ENUM 构造器 | 字段 | 方法

javax.persistence Enum DiscriminatorType

java.lang.Object
  java.lang.Enum<DiscriminatorType>
      javax.persistence.DiscriminatorType

所有已实现的接口:: Serializable, Comparable<DiscriminatorType>

public enum DiscriminatorType
extends Enum<DiscriminatorType>

Defines supported types of the discriminator column.

从以下版本开始:: Java Persistence 1.0

Enum 常量摘要
`CHAR` Single character as the discriminator type
`INTEGER` Integer as the discriminator type
`STRING` String as the discriminator type

方法摘要
`static DiscriminatorType`	`valueOf(String name)` Returns the enum constant of this type with the specified name.
`static DiscriminatorType[]`	`values()` Returns an array containing the constants of this enum type, in the order they're declared.

类方法继承 java.lang.Enum
`clone, compareTo, equals, getDeclaringClass, hashCode, name, ordinal, toString, valueOf`

类方法继承 java.lang.Object
`finalize, getClass, notify, notifyAll, wait, wait, wait`

Enum 常量详细信息

STRING

public static final DiscriminatorType STRING

String as the discriminator type

CHAR

public static final DiscriminatorType CHAR

Single character as the discriminator type

INTEGER

public static final DiscriminatorType INTEGER

Integer as the discriminator type

方法详细信息

values

public static final DiscriminatorType[] values()

Returns an array containing the constants of this enum type, in the order they're declared. This method may be used to iterate over the constants as follows:

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

返回:: an array containing the constants of this enum type, in the order they're declared

valueOf

public static DiscriminatorType valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

参数:: name - the name of the enum constant to be returned.
返回:: the enum constant with the specified name
抛出异常:: IllegalArgumentException - if this enum type has no constant with the specified name

概述