server/io.spine.server.entity.storage/ColumnMapping

ColumnMapping

public interface ColumnMapping<R>

The value mapping rules of entity columns.

A ColumnTypeMapping allows to map column values of certain type to their value in the storage.

Since there is a limited set of possible column types, in most non-testing scenarios it will be more convenient to extend AbstractColumnMapping than to implement this interface directly.

Parameters

<R>

a supertype of all stored values

Inheritors

AbstractColumnMapping

Functions

public abstract ColumnTypeMapping<T, ? extends R> of<T>(Class<T> type)

Obtains the mapping rules for the given type.

ofNull

public abstract ColumnTypeMapping<? extends Object, ? extends R> ofNull()

Obtains the mapping rules of null.