org.firebirdsql.gds.ng

Enum TransactionState

java.lang.Object

java.lang.Enum<TransactionState>

org.firebirdsql.gds.ng.TransactionState

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<TransactionState>

public enum TransactionState
extends java.lang.Enum<TransactionState>

Transactions states.

Since:

3.0

Author:

Mark Rotteveel

Enum Constant Summary

Enum Constants

Enum Constant and Description
ABORTED_UNKNOWN State used when a transaction was aborted with an unknown result.
ACTIVE
COMMITTED
COMMITTING
PREPARED
PREPARING
ROLLED_BACK
ROLLING_BACK

Method Summary

Modifier and Type	Method and Description
boolean	isValidTransition(TransactionState toState) Is the transition to toState valid from this state.
java.util.Set<TransactionState>	validTransitionSet()
static TransactionState	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static TransactionState[]	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

ACTIVE

public static final TransactionState ACTIVE

PREPARING

public static final TransactionState PREPARING

PREPARED

public static final TransactionState PREPARED

COMMITTING

public static final TransactionState COMMITTING

COMMITTED

public static final TransactionState COMMITTED

ROLLING_BACK

public static final TransactionState ROLLING_BACK

ROLLED_BACK

public static final TransactionState ROLLED_BACK

ABORTED_UNKNOWN

public static final TransactionState ABORTED_UNKNOWN

State used when a transaction was aborted with an unknown result. For example, failure to commit, rollback, or prepare due to broken connections (IO errors, or the connection already being closed).

In most cases, the transaction is probably rolled back, but we're not sure. For example, the commit could have been received and processed by the server, but a subsequent connection failure occurred before the response was received. Similar for a transaction prepare (first step of two-phase commit).

There are no valid transitions to and from this state; it can only be forcibly set.

Since:

5.0.13

Method Detail

values

public static TransactionState[] 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 (TransactionState c : TransactionState.values())
    System.out.println(c);

Returns:

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

valueOf

public static TransactionState valueOf(java.lang.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:

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

java.lang.NullPointerException - if the argument is null

isValidTransition

public final boolean isValidTransition(TransactionState toState)

Is the transition to toState valid from this state.

Parameters:

toState - The next state

Returns:

true transition is valid

validTransitionSet

public final java.util.Set<TransactionState> validTransitionSet()

Returns:

Set of valid transitions from this state