Package ste.lloop

Class ReturnValue

java.lang.Object

java.lang.Throwable

java.lang.Exception

java.lang.RuntimeException

ste.lloop.ReturnValue

All Implemented Interfaces:

Serializable

public class ReturnValue
extends RuntimeException

A holder for a return value that can be used in a lambda expression.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
ReturnValue()	Constructs a new ReturnValue instance with a null value.
ReturnValue(Object value)	Constructs a new ReturnValue instance with the given value.

Method Summary

Modifier and Type	Method	Description
Throwable	fillInStackTrace()	Overridden to avoid to create a stack trace, which is an expensive and resource intensive operation.
String	toString()
<R> R	value()	Returns the stored value, cast to a generic type R.

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 Details

ReturnValue

public ReturnValue(Object value)

Constructs a new ReturnValue instance with the given value.

Parameters:

value - the initial value

ReturnValue

public ReturnValue()

Constructs a new ReturnValue instance with a null value.

Method Details

value

public <R> R value()

Returns the stored value, cast to a generic type R.

Type Parameters:

R - the type to cast the value to

Returns:

the stored value

fillInStackTrace

public Throwable fillInStackTrace()

Overridden to avoid to create a stack trace, which is an expensive and resource intensive operation.

Overrides:

fillInStackTrace in class Throwable

Returns:

this

toString

public String toString()

Overrides:

toString in class Throwable