com.googlecode.objectify

Enum TxnType

java.lang.Object

java.lang.Enum<TxnType>

com.googlecode.objectify.TxnType

All Implemented Interfaces:

Serializable, Comparable<TxnType>

public enum TxnType
extends Enum<TxnType>

Just like the EJB options. See http://docs.oracle.com/javaee/6/api/javax/ejb/TransactionAttributeType.html

Author:

Jeff Schnitzer

Enum Constant Summary

Enum Constants

Enum Constant and Description
MANDATORY Require that there must already be a transaction running.
NEVER Require that there must NOT be a transaction running.
NOT_SUPPORTED Execute the work without a transaction, pausing an existing transaction if there is one.
REQUIRED Use the existing transaction (if present), or start a new transaction if not.
REQUIRES_NEW Start a new transaction, pausing the old one.
SUPPORTS Inherits previous transaction state.

Method Summary

Modifier and Type	Method and Description
static TxnType	valueOf(String name) Returns the enum constant of this type with the specified name.
static TxnType[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

MANDATORY

public static final TxnType MANDATORY

Require that there must already be a transaction running. If no transaction, throw an IllegalStateException.

NEVER

public static final TxnType NEVER

Require that there must NOT be a transaction running. If there is, throw an IllegalStateException.

NOT_SUPPORTED

public static final TxnType NOT_SUPPORTED

Execute the work without a transaction, pausing an existing transaction if there is one.

REQUIRED

public static final TxnType REQUIRED

Use the existing transaction (if present), or start a new transaction if not.

REQUIRES_NEW

public static final TxnType REQUIRES_NEW

Start a new transaction, pausing the old one.

SUPPORTS

public static final TxnType SUPPORTS

Inherits previous transaction state.

Method Detail

values

public static TxnType[] values()

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

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

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static TxnType 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.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null