org.apache.openjpa.persistence

Interface HintValueConverter

All Known Implementing Classes:

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

public interface HintValueConverter

Converts a given user-specified value to a target type consumable by the kernel. Used by hint processing.

Since:

2.0.0

Author:

Pinaki Poddar

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	HintValueConverter.EnumToInteger Convert the enum value to an enumerated set of constants.
static class	HintValueConverter.OpenJPAEnumToInteger Converts an OpenJPA specific enum to an equivalent kernel constant.
static class	HintValueConverter.StringToBoolean
static class	HintValueConverter.StringToInteger Converts a String to an integer.

Method Summary

Modifier and Type	Method and Description
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.

Method Detail

convert

Object convert(Object original)

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

Parameters:

original - the user-specified value

Returns:

an equivalent value consumable by a kernel construct.

Throws:

IllegalArgumentException - if the given value can not be converted.

canConvert

boolean canConvert(Class<?> type)

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