Package javax.persistence

Enum Class FlushModeType

java.lang.Object

java.lang.Enum<FlushModeType>

javax.persistence.FlushModeType

All Implemented Interfaces:

Serializable, Comparable<FlushModeType>, Constable

public enum FlushModeType
extends Enum<FlushModeType>

Flush mode setting.

When queries are executed within a transaction, if FlushModeType.AUTO is set on the Query or TypedQuery object, or if the flush mode setting for the persistence context is AUTO (the default) and a flush mode setting has not been specified for the Query or TypedQuery object, the persistence provider is responsible for ensuring that all updates to the state of all entities in the persistence context which could potentially affect the result of the query are visible to the processing of the query. The persistence provider implementation may achieve this by flushing those entities to the database or by some other means.

If FlushModeType.COMMIT is set, the effect of updates made to entities in the persistence context upon queries is unspecified.

If there is no transaction active or the persistence context is not joined to the current transaction, the persistence provider must not flush to the database.

Since:

Java Persistence 1.0

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
AUTO	(Default) Flushing to occur at query execution.
COMMIT	Flushing to occur at transaction commit.

Method Summary

Modifier and Type	Method	Description
static FlushModeType	valueOf(String name)	Returns the enum constant of this class with the specified name.
static FlushModeType[]	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

COMMIT

public static final FlushModeType COMMIT

Flushing to occur at transaction commit. The provider may flush at other times, but is not required to.

AUTO

public static final FlushModeType AUTO

(Default) Flushing to occur at query execution.

Method Details

values

public static FlushModeType[] 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 FlushModeType 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