Package com.blazebit.persistence.view

Enum LockMode

java.lang.Object

java.lang.Enum<LockMode>

com.blazebit.persistence.view.LockMode

All Implemented Interfaces:

Serializable, Comparable<LockMode>, java.lang.constant.Constable

public enum LockMode
extends Enum<LockMode>

The lock mode types for updatable entity views.

Since:

1.2.0

Author:

Christian Beikov

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	The automatic lock mode will use optimistic locking if possible or no locking.
NONE	No locking at any point is done.
OPTIMISTIC	The optimistic locking mode will use the version attribute of an entity to for optimistic locking.
PESSIMISTIC_READ	The pessimistic read locking mode will acquire a LockModeType.PESSIMISTIC_READ for the entity when reading the entity view.
PESSIMISTIC_WRITE	The pessimistic write locking mode will acquire a LockModeType.PESSIMISTIC_WRITE for the entity when reading the entity view.

Method Summary

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

AUTO

public static final LockMode AUTO

The automatic lock mode will use optimistic locking if possible or no locking.

OPTIMISTIC

public static final LockMode OPTIMISTIC

The optimistic locking mode will use the version attribute of an entity to for optimistic locking.

PESSIMISTIC_READ

public static final LockMode PESSIMISTIC_READ

The pessimistic read locking mode will acquire a LockModeType.PESSIMISTIC_READ for the entity when reading the entity view. This lock mode is only useful within the bounds of a single transaction as the lock is bound to it.

PESSIMISTIC_WRITE

public static final LockMode PESSIMISTIC_WRITE

The pessimistic write locking mode will acquire a LockModeType.PESSIMISTIC_WRITE for the entity when reading the entity view. This lock mode is only useful within the bounds of a single transaction as the lock is bound to it.

NONE

public static final LockMode NONE

No locking at any point is done.

Method Details

values

public static LockMode[] values()

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

Returns:

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

valueOf

public static LockMode 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