PersistenceUnitTransactionType (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.spi Enum PersistenceUnitTransactionType

java.lang.Object
  java.lang.Enum<PersistenceUnitTransactionType>
      javax.persistence.spi.PersistenceUnitTransactionType

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

public enum PersistenceUnitTransactionType
extends Enum<PersistenceUnitTransactionType>

This enum class defines whether the entity managers created by the EntityManagerFactory will be JTA or resource-local entity managers.

从以下版本开始:: Java Persistence 1.0

Enum 常量摘要
`JTA` JTA entity manager
`RESOURCE_LOCAL` resource-local entity manager

方法摘要
`static PersistenceUnitTransactionType`	`valueOf(String name)` Returns the enum constant of this type with the specified name.
`static PersistenceUnitTransactionType[]`	`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

JTA

public static final PersistenceUnitTransactionType JTA

JTA entity manager

RESOURCE_LOCAL

public static final PersistenceUnitTransactionType RESOURCE_LOCAL

resource-local entity manager

方法详细信息

values

public static final PersistenceUnitTransactionType[] 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(PersistenceUnitTransactionType c : PersistenceUnitTransactionType.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 PersistenceUnitTransactionType 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

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