Package com.github.collinalpert.lambda2sql.functions

Interface SqlFunction<T,R>

All Superinterfaces:

Function<T,R>, Serializable, SerializedFunctionalInterface

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface SqlFunction<T,R>
extends Function<T,R>, SerializedFunctionalInterface

A serialized Function. Converting a function to be used in SQL is really only useful when working with ORDER BY, or similar DQL options. For more on this, check out my ORM library, Java2DB, which uses this feature.

Author:

Collin Alpert

See Also:

Function, SerializedFunctionalInterface

Method Summary

Modifier and Type	Method	Description
default <V> SqlFunction<T,V>	andThen(SqlFunction<? super R,? extends V> after)
default <V> SqlFunction<V,R>	compose(SqlFunction<? super V,? extends T> before)
static <T> SqlFunction<T,T>	identity()

Methods inherited from interface java.util.function.Function

andThen, apply, compose

Method Details

identity

static <T> SqlFunction<T,T> identity()

compose

default <V> SqlFunction<V,R> compose(SqlFunction<? super V,? extends T> before)

andThen

default <V> SqlFunction<T,V> andThen(SqlFunction<? super R,? extends V> after)