Package io.micronaut.test.typepollution

Class ThresholdFocusListener

java.lang.Object

io.micronaut.test.typepollution.ThresholdFocusListener

All Implemented Interfaces:

FocusListener

public final class ThresholdFocusListener
extends Object
implements FocusListener

FocusListener implementation that counts and tracks all focus events, including stack traces. At the end of the test, checkThresholds(long) can be used to verify that no concrete class exceeded a given focus event threshold.

Constructor Summary

Constructors

Constructor	Description
ThresholdFocusListener()

Method Summary

Modifier and Type	Method	Description
boolean	checkThresholds(long threshold)	Check whether the number of focus events exceeded the given threshold for any concrete class.
void	onFocus(Class<?> concreteType, Class<?> interfaceType)	Called on every focus event, potentially concurrently.

Methods inherited from class java.lang.Object

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

Constructor Details

ThresholdFocusListener

public ThresholdFocusListener()

Method Details

onFocus

public void onFocus(Class<?> concreteType,
 Class<?> interfaceType)

Description copied from interface: FocusListener

Called on every focus event, potentially concurrently.

Specified by:

onFocus in interface FocusListener

Parameters:

concreteType - The concrete type that was checked

interfaceType - The interface type that the concrete type was type checked against

checkThresholds

public boolean checkThresholds(long threshold)

Check whether the number of focus events exceeded the given threshold for any concrete class. If this is the case, this method also prints a human-readable report on all type checking stack traces for the concrete type to System.out.

Parameters:

threshold - The number of events that should not be exceeded

Returns:

false iff any concrete class was type checked too often