org.springframework.data.convert

Interface PropertyValueConverter<DV,SV,C extends ValueConversionContext<? extends PersistentProperty<?>>>

Type Parameters:

DV - domain-specific type.

SV - store-native type.

C - the store specific conversion context.

All Known Implementing Classes:

PropertyValueConverter.FunctionPropertyValueConverter, PropertyValueConverter.ObjectToObjectPropertyValueConverter

public interface PropertyValueConverter<DV,SV,C extends ValueConversionContext<? extends PersistentProperty<?>>>

PropertyValueConverter provides a symmetric way of converting certain properties from domain to store-specific values.

A PropertyValueConverter is, other than a ReadingConverter or WritingConverter, only applied to special annotated fields which allows a fine-grained conversion of certain values within a specific context.

Since:

2.7

Author:

Christoph Strobl

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	PropertyValueConverter.FunctionPropertyValueConverter<DV,SV,P extends PersistentProperty<P>> A PropertyValueConverter that delegates conversion to the given BiFunctions.
static class	PropertyValueConverter.ObjectToObjectPropertyValueConverter No-op PropertyValueConverter implementation.

Method Summary

Modifier and Type	Method and Description
DV	read(SV value, C context) Convert the given store specific value into it's domain value representation.
SV	write(DV value, C context) Convert the given domain-specific value into it's native store representation.

Method Detail

read

@Nullable
DV read(@Nullable
                  SV value,
                  C context)

Convert the given store specific value into it's domain value representation. Typically, a read operation.

Parameters:

value - can be null.

context - never null.

Returns:

the converted value. Can be null.

write

@Nullable
SV write(@Nullable
                   DV value,
                   C context)

Convert the given domain-specific value into it's native store representation. Typically, a write operation.

Parameters:

value - can be null.

context - never null.

Returns:

the converted value. Can be null.