Package com.hazelcast.transaction

Enum Class TransactionOptions.TransactionType

java.lang.Object

java.lang.Enum<TransactionOptions.TransactionType>

com.hazelcast.transaction.TransactionOptions.TransactionType

All Implemented Interfaces:

Serializable, Comparable<TransactionOptions.TransactionType>, Constable

Enclosing class:

TransactionOptions

public static enum TransactionOptions.TransactionType
extends Enum<TransactionOptions.TransactionType>

The type of transaction. With the type you have influence on how much guarantee you get when a member crashes when a transaction is committing.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
ONE_PHASE	The one phase transaction executes a transaction using a single step at the end; committing the changes.
TWO_PHASE	The two phase commit is separated in 2 parts.

Method Summary

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

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

ONE_PHASE

public static final TransactionOptions.TransactionType ONE_PHASE

The one phase transaction executes a transaction using a single step at the end; committing the changes. There is no prepare of the transactions, so conflicts are not detected. If there is a conflict, then when the transaction commits the changes, some of the changes are written and others are not; leaving the system in a potentially permanent inconsistent state.

TWO_PHASE

public static final TransactionOptions.TransactionType TWO_PHASE

The two phase commit is separated in 2 parts. First it tries to execute the prepare; if there are any conflicts, the prepare will fail. Once the prepare has succeeded, the commit (writing the changes) can be executed.

Hazelcast also provides three-phase transaction by automatically copying the backlog to another member so that in case of failure during a commit, another member can continue the commit from backup. For more information see the TransactionOptions.setDurability(int)

Method Details

values

public static TransactionOptions.TransactionType[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

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

valueOf

public static TransactionOptions.TransactionType valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (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 class has no constant with the specified name

NullPointerException - if the argument is null

id

public int id()

getById

public static TransactionOptions.TransactionType getById(int id)