Package de.odrotbohm.spring.web.model

Interface MappedPayloads

public interface MappedPayloads

A monadic type to implement Spring MVC handler methods in a functional way.

Author:

Oliver Drotbohm

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	MappedPayloads.MappedErrors
static class	MappedPayloads.MappedPayload<T>	A monadic type to work with a mapped payload alongside Errors to build up pipelines to eventually result in an HttpEntity based on the processing steps.

Method Summary

Static Methods

Modifier and Type	Method	Description
static <T> MappedPayloads.MappedPayload<T>	of(Optional<T> source, org.springframework.validation.Errors errors)	Creates a new MappedPayloads.MappedPayload of the given source and Errors.
static MappedPayloads.MappedErrors	of(org.springframework.validation.Errors errors)	Creates a new MappedPayloads.MappedErrors from the given Errors instance.
static <T> MappedPayloads.MappedPayload<T>	of(T payload, org.springframework.validation.Errors errors)	Creates a new MappedPayloads.MappedPayload for the given source instance
static org.springframework.http.ResponseEntity<?>	toBadRequest(org.springframework.validation.Errors errors)	Syntactic sugar to easily create a HttpStatus.BAD_REQUEST response from an Errors instance in a Stream mapping step or the like.

Method Details

of

static MappedPayloads.MappedErrors of(org.springframework.validation.Errors errors)

Creates a new MappedPayloads.MappedErrors from the given Errors instance.

Parameters:

errors - must not be null.

Returns:

will never be null.

of

static <T> MappedPayloads.MappedPayload<T> of(@Nullable
 T payload,
 org.springframework.validation.Errors errors)

Creates a new MappedPayloads.MappedPayload for the given source instance

Type Parameters:

T -

Parameters:

payload - can be null.

errors -

Returns:

of

static <T> MappedPayloads.MappedPayload<T> of(Optional<T> source,
 org.springframework.validation.Errors errors)

Creates a new MappedPayloads.MappedPayload of the given source and Errors. Of the source is empty, a HttpStatus.NOT_FOUND will be produced independent of the built up pipeline.

Type Parameters:

T -

Parameters:

source - must not be null.

errors - must not be null.

Returns:

toBadRequest

static org.springframework.http.ResponseEntity<?> toBadRequest(org.springframework.validation.Errors errors)

Syntactic sugar to easily create a HttpStatus.BAD_REQUEST response from an Errors instance in a Stream mapping step or the like.

Parameters:

errors - must not be null.

Returns:

will never be null.