Package org.hibernate.dialect.lock

Enum Class PessimisticLockStyle

java.lang.Object

java.lang.Enum<PessimisticLockStyle>

org.hibernate.dialect.lock.PessimisticLockStyle

All Implemented Interfaces:

Serializable, Comparable<PessimisticLockStyle>, Constable

public enum PessimisticLockStyle
extends Enum<PessimisticLockStyle>

Indicates how a dialect supports acquiring pessimistic locks as part of a SELECT statement.

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
CLAUSE	The dialect supports pessimistic locking through locking clause such as FOR UPDATE (OF) or FOR SHARE (OF).
NONE	The dialect does not support pessimistic locking.
TABLE_HINT	The dialect supports pessimistic locking through Transact-SQL style table locking hints, associated with the table references in the FROM clause.

Method Summary

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

NONE

public static final PessimisticLockStyle NONE

The dialect does not support pessimistic locking.

CLAUSE

public static final PessimisticLockStyle CLAUSE

The dialect supports pessimistic locking through locking clause such as FOR UPDATE (OF) or FOR SHARE (OF).

TABLE_HINT

public static final PessimisticLockStyle TABLE_HINT

The dialect supports pessimistic locking through Transact-SQL style table locking hints, associated with the table references in the FROM clause.

See Also:

• Dialect.appendLockHint(LockOptions, String)

Method Details

values

public static PessimisticLockStyle[] 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 PessimisticLockStyle 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