Package org.springframework.data.convert

Class PropertyValueConverter.FunctionPropertyValueConverter<DV,SV,P extends PersistentProperty<P>>

java.lang.Object

org.springframework.data.convert.PropertyValueConverter.FunctionPropertyValueConverter<DV,SV,P>

All Implemented Interfaces:

PropertyValueConverter<DV,SV,ValueConversionContext<P>>

Enclosing interface:

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

public static class PropertyValueConverter.FunctionPropertyValueConverter<DV,SV,P extends PersistentProperty<P>>
extends Object
implements PropertyValueConverter<DV,SV,ValueConversionContext<P>>

A PropertyValueConverter that delegates conversion to the given BiFunctions.

Author:

Oliver Drotbohm

Nested Class Summary

Nested classes/interfaces inherited from interface org.springframework.data.convert.PropertyValueConverter

PropertyValueConverter.FunctionPropertyValueConverter<DV,SV,P extends PersistentProperty<P>>, PropertyValueConverter.ObjectToObjectPropertyValueConverter

Constructor Summary

Constructors

Constructor	Description
FunctionPropertyValueConverter(BiFunction<DV,ValueConversionContext<P>,SV> writer, BiFunction<SV,ValueConversionContext<P>,DV> reader)

Method Summary

Modifier and Type	Method	Description
@Nullable DV	read(@Nullable SV value, ValueConversionContext<P> context)	Convert the given store specific value into it's domain value representation.
@Nullable DV	readNull(ValueConversionContext<P> context)	Convert the given null value from the store into its domain value representation.
@Nullable SV	write(@Nullable DV value, ValueConversionContext<P> context)	Convert the given domain-specific value into it's native store representation.
@Nullable SV	writeNull(ValueConversionContext<P> context)	Convert the given null value from the domain model into it's native store representation.

Methods inherited from class java.lang.Object

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

Constructor Details

FunctionPropertyValueConverter

public FunctionPropertyValueConverter(BiFunction<DV,ValueConversionContext<P>,SV> writer,
 BiFunction<SV,ValueConversionContext<P>,DV> reader)

Method Details

write

public @Nullable SV write(@Nullable DV value,
 ValueConversionContext<P> context)

Description copied from interface: PropertyValueConverter

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

Specified by:

write in interface PropertyValueConverter<DV,SV,P extends PersistentProperty<P>>

Parameters:

value - value to write; can be null.

context - ValueConversionContext containing store-specific metadata used in the value conversion; never null.

Returns:

the converted value. Can be null.

writeNull

public @Nullable SV writeNull(ValueConversionContext<P> context)

Description copied from interface: PropertyValueConverter

Convert the given null value from the domain model into it's native store representation. Typically, a write operation. Returns null by default.

Specified by:

writeNull in interface PropertyValueConverter<DV,SV,P extends PersistentProperty<P>>

Parameters:

context - ValueConversionContext containing store-specific metadata used in the value conversion; never null.

Returns:

the converted value. Can be null.

read

public @Nullable DV read(@Nullable SV value,
 ValueConversionContext<P> context)

Description copied from interface: PropertyValueConverter

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

Specified by:

read in interface PropertyValueConverter<DV,SV,P extends PersistentProperty<P>>

Parameters:

value - value to read.

context - ValueConversionContext containing store-specific metadata used in the value conversion; never null.

Returns:

the converted value. Can be null.

readNull

public @Nullable DV readNull(ValueConversionContext<P> context)

Description copied from interface: PropertyValueConverter

Convert the given null value from the store into its domain value representation. Typically, a read operation. Returns null by default.

Specified by:

readNull in interface PropertyValueConverter<DV,SV,P extends PersistentProperty<P>>

Parameters:

context - ValueConversionContext containing store-specific metadata used in the value conversion; never null.

Returns:

the converted value. Can be null.