Module eclipselink

Package org.eclipse.persistence.config

Class PessimisticLock

java.lang.Object

org.eclipse.persistence.config.PessimisticLock

public final class PessimisticLock
extends Object

PessimisticLock hint values.

The class contains all the valid values for QueryHints.PESSIMISTIC_LOCK query hint.

JPA Query Hint usage:

 query.setHint(QueryHints.PESSIMISTIC_LOCK, PessimisticLock.Lock);

or

@QueryHint(name=QueryHints.PESSIMISTIC_LOCK, value=PessimisticLock.Lock)

Hint values are case-insensitive. "" could be used instead of default value DEFAULT.

Note: As of JPA 2.0 there is a standard way to configure pessimistic locking.

See Also:

• QueryHints
• LockModeType
• EntityManager
• Query

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DEFAULT
static final String	Lock
static final String	LockNoWait
static final String	NoLock

Method Summary

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

NoLock

public static final String NoLock

See Also:

• Constant Field Values

Lock

public static final String Lock

See Also:

• Constant Field Values

LockNoWait

public static final String LockNoWait

See Also:

• Constant Field Values

DEFAULT

public static final String DEFAULT

See Also:

• Constant Field Values