pro.fessional.mirana.flow

Class ReturnOrException

java.lang.Object

java.lang.Throwable

java.lang.Exception

java.lang.RuntimeException

pro.fessional.mirana.pain.NoStackRuntimeException

pro.fessional.mirana.flow.ReturnOrException

All Implemented Interfaces:

Serializable

public class ReturnOrException
extends NoStackRuntimeException

return or exception

Since:

2021-02-13

Author:

trydofor

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ReturnOrException(Object value, Throwable cause)
ReturnOrException(String message, Object value, Throwable cause)

Method Summary

Modifier and Type	Method and Description
@Nullable Throwable	getException()
<T,S extends T> T	getOrElse(S elze, @NotNull Class<T> type) return elze if type not match
<T> T	getOrElse(T elze) return elze if null
<T> T	getValue()
<T> T	returnOrThrow() throw the exception if there is, otherwise return a result.
<T,S extends T> T	returnOrThrow(S elze, @NotNull Class<T> type) throw the exception if there is, otherwise return a result.
<T> T	returnOrThrow(T elze) throw the exception if there is, otherwise return a result.
String	toString()

Methods inherited from class pro.fessional.mirana.pain.NoStackRuntimeException

fillInStackTrace

Methods inherited from class java.lang.Throwable

addSuppressed, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace

Methods inherited from class java.lang.Object

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

Constructor Detail

ReturnOrException

public ReturnOrException(Object value,
                         Throwable cause)

ReturnOrException

public ReturnOrException(String message,
                         Object value,
                         Throwable cause)

Method Detail

getException

@Nullable
public @Nullable Throwable getException()

getValue

@Nullable
public <T> T getValue()

getOrElse

@Nullable
 @Contract(value="!null -> !null")
public <T> T getOrElse(@Nullable
                                                                    T elze)

return elze if null

getOrElse

@Contract(value="!null,_ -> !null")
public <T,S extends T> T getOrElse(@Nullable
                                                                       S elze,
                                                                       @NotNull
                                                                       @NotNull Class<T> type)

return elze if type not match

Type Parameters:

T - type of return value

S - subclass type of T

Parameters:

elze - else

type - type to match

Returns:

value

returnOrThrow

@Nullable
public <T> T returnOrThrow()

throw the exception if there is, otherwise return a result.

returnOrThrow

@Contract(value="!null -> !null")
public <T> T returnOrThrow(@Nullable
                                                             T elze)

throw the exception if there is, otherwise return a result. and return elze if the result is null

returnOrThrow

@Nullable
 @Contract(value="!null,_ -> !null")
public <T,S extends T> T returnOrThrow(@Nullable
                                                                                      S elze,
                                                                                      @NotNull
                                                                                      @NotNull Class<T> type)

throw the exception if there is, otherwise return a result. and return elze if the result not match the type.

Type Parameters:

T - type of return value

S - subclass type of T

Parameters:

elze - else

type - type to match

Returns:

value

toString

public String toString()

Overrides:

toString in class Throwable