Package net.jqwik.api.lifecycle

Interface AroundTryHook

All Superinterfaces:

LifecycleHook

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@API(status=MAINTAINED,
     since="1.4.0")
@FunctionalInterface
public interface AroundTryHook
extends LifecycleHook

Implement this hook to define behaviour that should "wrap" the execution of a single try, i.e., do something directly before or after executing a property method with a given list of parameters. You can even change the result of a try from satisfied to falsified or the other way round.

Field Summary

Fields

Modifier and Type	Field	Description
static AroundTryHook	BASE

Method Summary

Modifier and Type	Method	Description
TryExecutionResult	aroundTry(TryLifecycleContext context, TryExecutor aTry, java.util.List<java.lang.Object> parameters)	When you wrap a try you can do stuff before and/or after its execution.
default int	aroundTryProximity()	The higher the value, the closer to the actual property method.
default int	compareTo(AroundTryHook other)

Methods inherited from interface net.jqwik.api.lifecycle.LifecycleHook

appliesTo, propagateTo

Field Detail

BASE

@API(status=INTERNAL)
static final AroundTryHook BASE

Method Detail

aroundTry

TryExecutionResult aroundTry(TryLifecycleContext context,
                             TryExecutor aTry,
                             java.util.List<java.lang.Object> parameters)
                      throws java.lang.Throwable

When you wrap a try you can do stuff before and/or after its execution. All implementors should invoke the try with aTry.execute(parameters) and either return the result of this call or create another result.

It is possible to manipulate the parameters before invoking aTry.execute(parameters). Never change the number and types of parameters because this will result in runtime errors. Also keep in mind that all manipulation might mess up random generation and shrinking.

Parameters:

context - The property's context object

aTry - executor to call

parameters - the generated parameters for this try

Returns:

result of running a single try

Throws:

java.lang.Throwable

aroundTryProximity

default int aroundTryProximity()

The higher the value, the closer to the actual property method. Default value is 0.

Values greater than -10 will make it run "inside" annotated lifecycle methods (BeforeTry and AfterTry).

Returns:

an integer value

compareTo

@API(status=INTERNAL)
default int compareTo(AroundTryHook other)