SuccessType - the return type for a successful operation.public interface ServiceResult<SuccessType> extends Result<SuccessType,String>
ServiceResult type is an attempt at the function construct of
Either. In this implementation a
ServiceResult
can define either success or failure (error) using the same type.| Modifier and Type | Method and Description |
|---|---|
String |
getErrorMessage()
The return message of a failed operation.
|
SuccessType |
getMessage()
The return message of a successful operation.
|
default ServiceResult<SuccessType> |
ifFailure(Consumer<? super String> consumer)
If the result of the operation has failed, invoke the specified consumer with the value,
otherwise do nothing.
|
default ServiceResult<SuccessType> |
ifSuccessful(Consumer<? super SuccessType> consumer)
Executes the provided
Consumer if this ServiceResult is a success. |
<T> T |
map(Function<SuccessType,T> successFunction,
Function<String,T> errorFunction)
A mapping function that maps to either
SuccessType or FailureType depending on
success or
failure of the operation. |
isFailure, isSuccessful<T> T map(Function<SuccessType,T> successFunction, Function<String,T> errorFunction)
ResultSuccessType or FailureType depending on
success or
failure of the operation.map in interface Result<SuccessType,String>T - the resultant typesuccessFunction - the mapping function to map the SuccessType to the resultant typeerrorFunction - the mapping function to map the FailureType to the resultant error typeTSuccessType getMessage()
ResultSuccessTypegetMessage in interface Result<SuccessType,String>String getErrorMessage()
ResultFailureTypegetErrorMessage in interface Result<SuccessType,String>default ServiceResult<SuccessType> ifSuccessful(Consumer<? super SuccessType> consumer)
Consumer if this ServiceResult is a success.consumer - the Consumer to be executed on success.ServiceResultdefault ServiceResult<SuccessType> ifFailure(Consumer<? super String> consumer)
consumer - block to be executed if a value is presentServiceResultNullPointerException - if value is present and consumer is
null