public enum Propagation extends Enum<Propagation>
Transactional
annotation, corresponding to the
TransactionDefinition
interface.Enum Constant and Description |
---|
MANDATORY
Support a current transaction, throw an exception if none exists.
|
NESTED
Execute within a nested transaction if a current transaction exists,
behave like
REQUIRED otherwise. |
NEVER
Execute non-transactionally, throw an exception if a transaction exists.
|
NOT_SUPPORTED
Execute non-transactionally, suspend the current transaction if one exists.
|
REQUIRED
Support a current transaction, create a new one if none exists.
|
REQUIRES_NEW
Create a new transaction, and suspend the current transaction if one exists.
|
SUPPORTS
Support a current transaction, execute non-transactionally if none exists.
|
Modifier and Type | Method and Description |
---|---|
int |
value() |
static Propagation |
valueOf(String name)
Returns the enum constant of this type with the specified name.
|
static Propagation[] |
values()
Returns an array containing the constants of this enum type, in
the order they are declared.
|
public static final Propagation REQUIRED
This is the default setting of a transaction annotation.
public static final Propagation SUPPORTS
Note: For transaction managers with transaction synchronization,
SUPPORTS
is slightly different from no transaction at all,
as it defines a transaction scope that synchronization will apply for.
As a consequence, the same resources (JDBC Connection, Hibernate Session, etc)
will be shared for the entire specified scope. Note that this depends on
the actual synchronization configuration of the transaction manager.
public static final Propagation MANDATORY
public static final Propagation REQUIRES_NEW
NOTE: Actual transaction suspension will not work out-of-the-box
on all transaction managers. This in particular applies to
JtaTransactionManager
,
which requires the javax.transaction.TransactionManager
to be
made available to it (which is server-specific in standard Java EE).
public static final Propagation NOT_SUPPORTED
NOTE: Actual transaction suspension will not work out-of-the-box
on all transaction managers. This in particular applies to
JtaTransactionManager
,
which requires the javax.transaction.TransactionManager
to be
made available to it (which is server-specific in standard Java EE).
public static final Propagation NEVER
public static final Propagation NESTED
REQUIRED
otherwise. There is no analogous feature in EJB.
Note: Actual creation of a nested transaction will only work on specific transaction managers. Out of the box, this only applies to the JDBC DataSourceTransactionManager. Some JTA providers might support nested transactions as well.
DataSourceTransactionManager
public static Propagation[] values()
for (Propagation c : Propagation.values()) System.out.println(c);
public static Propagation valueOf(String name)
name
- the name of the enum constant to be returned.IllegalArgumentException
- if this enum type has no constant with the specified nameNullPointerException
- if the argument is nullpublic int value()