org.apache.openjpa.persistence
Class MixedLockLevelsHelper

java.lang.Object
  org.apache.openjpa.persistence.MixedLockLevelsHelper

All Implemented Interfaces:

HintValueConverter

public class MixedLockLevelsHelper
extends Object
implements HintValueConverter

Helper methods translate between JPA-defined lock mode and OpenJPA internal lock levels.

Since:

2.0.0

Author:

Albert Lee

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.openjpa.persistence.HintValueConverter

HintValueConverter.EnumToInteger, HintValueConverter.OpenJPAEnumToInteger, HintValueConverter.StringToBoolean, HintValueConverter.StringToInteger

Constructor Summary

MixedLockLevelsHelper()

Method Summary

boolean	canConvert(Class<?> type) Affirm if this receiver can convert the value of the given type.
Object	convert(Object original) Convert the user-specified value to a kernel consumable value.
static LockModeType	fromLockLevel(int level) Translates internal lock level to javax.persistence LockModeType.
static int	toLockLevel(int mode)
static int	toLockLevel(LockModeType mode) Translates javax.persistence LockModeType to internal lock level.

Methods inherited from class java.lang.Object

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

Constructor Detail

MixedLockLevelsHelper

public MixedLockLevelsHelper()

Method Detail

toLockLevel

public static int toLockLevel(LockModeType mode)

Translates javax.persistence LockModeType to internal lock level.

toLockLevel

public static int toLockLevel(int mode)

fromLockLevel

public static LockModeType fromLockLevel(int level)

Translates internal lock level to javax.persistence LockModeType.

canConvert

public boolean canConvert(Class<?> type)

Description copied from interface: HintValueConverter

Affirm if this receiver can convert the value of the given type.

Specified by:

canConvert in interface HintValueConverter

convert

public Object convert(Object original)

Description copied from interface: HintValueConverter

Convert the user-specified value to a kernel consumable value.

Specified by:

convert in interface HintValueConverter

Parameters:

original - the user-specified value

Returns:

an equivalent value consumable by a kernel construct.