io.micronaut.data.model.runtime.convert

Interface AttributeConverter<X,Y>

Type Parameters:

X - The type of the attribute

Y - The type of the native value stored in the database

@Introspected
public interface AttributeConverter<X,Y>

Interface roughly equivalent to JPA's AttributeConverter without being specific to any database type.

Since:

1.0

Author:

graemerocher

Method Summary

Modifier and Type	Method and Description
X	convertToEntityAttribute(Y value, RuntimePersistentProperty<X> property) Converts the data stored in the database to a value that can be written to the entity attribute.
Y	convertToNativeValue(X attribute, RuntimePersistentProperty<X> property) Converts the value stored in the entity attribute into a native value that can be persisted to the target database.

Method Detail

convertToNativeValue

@NonNull
Y convertToNativeValue(@NonNull
                                X attribute,
                                @NonNull
                                RuntimePersistentProperty<X> property)

Converts the value stored in the entity attribute into a native value that can be persisted to the target database.

Parameters:

attribute - the entity attribute value to be converted

property - The property that the attribute relates to

Returns:

The native value that can be stored in the database

convertToEntityAttribute

@NonNull
X convertToEntityAttribute(@NonNull
                                    Y value,
                                    @NonNull
                                    RuntimePersistentProperty<X> property)

Converts the data stored in the database to a value that can be written to the entity attribute.

Parameters:

value - the data read from the database

property - The property that represents the attribute

Returns:

the converted value to be stored in the entity attribute