com.atlassian.greenhopper.service
Class ServiceOutcomeImpl<T>

java.lang.Object
  com.atlassian.greenhopper.service.ServiceOutcomeImpl<T>

All Implemented Interfaces:

com.atlassian.fugue.Effect.Applicant<T>, ServiceOutcome<T>

public class ServiceOutcomeImpl<T>
extends java.lang.Object
implements ServiceOutcome<T>

Generic service outcome that can optionally hold a value.

Since:

v5.8.5

Method Summary

static <T> ServiceOutcomeImpl<T>	error(ErrorCollection.Reason reason, java.lang.String messageKey, java.lang.Object... params) Convenience method that returns a new ServiceOutcomeImpl instance containing the provided error message, and no return value.
static <T> ServiceOutcomeImpl<T>	error(ServiceOutcome<?> outcome) Convenience method that returns a new ServiceOutcomeImpl containing the given errors.
static <T> ServiceOutcomeImpl<T>	error(java.lang.String contextId, ErrorCollection.Reason reason, java.lang.String messageKey, java.lang.Object... params) Convenience method that returns a new ServiceOutcomeImpl instance containing the provided contextual error message, and no return value.
<A> ServiceOutcome<A>	flatMap(com.google.common.base.Function<? super T,ServiceOutcome<A>> func)
void	foreach(com.atlassian.fugue.Effect<T> visitor)
static <T> ServiceOutcomeImpl<T>	from(ErrorCollection errors) Convenience method that returns a new ServiceOutcomeImpl containing the given errors.
static <T> ServiceOutcomeImpl<T>	from(ErrorCollection errors, T value) Convenience method that returns a new ServiceOutcomeImpl containing the given errors and returned value.
ErrorCollection	getErrors()
T	getValue() Returns the value that was returned by the service, or null.
boolean	isValid()
<A> ServiceOutcome<A>	map(com.google.common.base.Function<? super T,A> func)
static <Void> ServiceOutcomeImpl<Void>	ok() Convenience method that returns a new ServiceOutcomeImpl instance containing no errors, and with the provided returned value.
static <T> ServiceOutcomeImpl<T>	ok(T returnedValue) Convenience method that returns a new ServiceOutcomeImpl instance containing no errors, and with the provided returned value.
com.atlassian.fugue.Either<ErrorCollection,com.atlassian.fugue.Option<T>>	toEither()
com.atlassian.fugue.Option<T>	toOption()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

ok

public static <T> ServiceOutcomeImpl<T> ok(T returnedValue)

Convenience method that returns a new ServiceOutcomeImpl instance containing no errors, and with the provided returned value.

Type Parameters:

T - the type of the returned value

Parameters:

returnedValue - the returned value

Returns:

a new ServiceOutcomeImpl

ok

public static <Void> ServiceOutcomeImpl<Void> ok()

Convenience method that returns a new ServiceOutcomeImpl instance containing no errors, and with the provided returned value.

Type Parameters:

Void - the type of the returned value

Returns:

a new ServiceOutcomeImpl

error

public static <T> ServiceOutcomeImpl<T> error(ErrorCollection.Reason reason,
                                              java.lang.String messageKey,
                                              java.lang.Object... params)

Convenience method that returns a new ServiceOutcomeImpl instance containing the provided error message, and no return value.

Parameters:

reason - the reason for the error

messageKey - the key of the message

params - the parameters to the key

Returns:

a new ServiceOutcomeImpl

error

public static <T> ServiceOutcomeImpl<T> error(java.lang.String contextId,
                                              ErrorCollection.Reason reason,
                                              java.lang.String messageKey,
                                              java.lang.Object... params)

Convenience method that returns a new ServiceOutcomeImpl instance containing the provided contextual error message, and no return value.

Parameters:

contextId - context of the error

reason - the reason for the error

messageKey - the key of the message

params - the parameters to the key

Returns:

a new ServiceOutcomeImpl

error

public static <T> ServiceOutcomeImpl<T> error(ServiceOutcome<?> outcome)

Convenience method that returns a new ServiceOutcomeImpl containing the given errors.

from

public static <T> ServiceOutcomeImpl<T> from(ErrorCollection errors)

Convenience method that returns a new ServiceOutcomeImpl containing the given errors.

Type Parameters:

T - the type of the returned value

Parameters:

errors - an ErrorCollection

Returns:

a new ServiceOutcomeImpl instance

from

public static <T> ServiceOutcomeImpl<T> from(ErrorCollection errors,
                                             T value)

Convenience method that returns a new ServiceOutcomeImpl containing the given errors and returned value.

Type Parameters:

T - the type of the returned value

Parameters:

errors - an ErrorCollection

value - the returned value

Returns:

a new ServiceOutcomeImpl instance

isValid

public boolean isValid()

Specified by:

isValid in interface ServiceOutcome<T>

Returns:

true if there are no errors, false otherwise.

getErrors

public ErrorCollection getErrors()

Specified by:

getErrors in interface ServiceOutcome<T>

Returns:

an ErrorCollection that contains any errors that may have happened as a result of the validations.

getValue

public T getValue()

Returns the value that was returned by the service, or null.

Specified by:

getValue in interface ServiceOutcome<T>

Returns:

the value returned by the service, or null

toOption

public com.atlassian.fugue.Option<T> toOption()

Specified by:

toOption in interface ServiceOutcome<T>

toEither

public com.atlassian.fugue.Either<ErrorCollection,com.atlassian.fugue.Option<T>> toEither()

Specified by:

toEither in interface ServiceOutcome<T>

foreach

public void foreach(com.atlassian.fugue.Effect<T> visitor)

Specified by:

foreach in interface com.atlassian.fugue.Effect.Applicant<T>

map

public <A> ServiceOutcome<A> map(com.google.common.base.Function<? super T,A> func)

Specified by:

map in interface ServiceOutcome<T>

Type Parameters:

A - the type of the ServiceOutcome

Parameters:

func - a function which takes a instance of type T and returns an instance of type A

Returns:

a new service outcome based on the output of func

flatMap

public <A> ServiceOutcome<A> flatMap(com.google.common.base.Function<? super T,ServiceOutcome<A>> func)

Specified by:

flatMap in interface ServiceOutcome<T>

Type Parameters:

A - the type of the ServiceOutcome

Parameters:

func - a function which takes a instance of type T and returns a ServiceOutcome of type A

Returns:

a new service outcome based on the output of func