de.hybris.platform.cms2.common.functions

Interface ChainFunction<SOURCE_TYPE,TARGET_TYPE>

Type Parameters:

SOURCE_TYPE - the in-bound type of the function

TARGET_TYPE - the out-bound type of the function

All Superinterfaces:

java.util.function.Function<SOURCE_TYPE,java.util.Optional<TARGET_TYPE>>

All Known Subinterfaces:

ChainFunction

public interface ChainFunction<SOURCE_TYPE,TARGET_TYPE>
extends java.util.function.Function<SOURCE_TYPE,java.util.Optional<TARGET_TYPE>>

Represents a function that will delegate its returned Optional-wrapped value to another ChainFunction if its own execution returns empty.

This is functional interface whose functional method is Function.apply(Object).

See Also:

Function

Method Summary

Modifier and Type	Method and Description
default ChainFunction<SOURCE_TYPE,TARGET_TYPE>	orElse(ChainFunction<SOURCE_TYPE,TARGET_TYPE> orElse) Enablement of the chaining of a ChainFunction by specifying the delegation to another candidate at the orElse phase.

Methods inherited from interface java.util.function.Function

andThen, apply, compose, identity

Method Detail

orElse

default ChainFunction<SOURCE_TYPE,TARGET_TYPE> orElse(ChainFunction<SOURCE_TYPE,TARGET_TYPE> orElse)

Enablement of the chaining of a ChainFunction by specifying the delegation to another candidate at the orElse phase.

Parameters:

orElse - a ChainFunction

Returns:

the function's result if it succeeds, otherwise the result of the orElse function