Module is.codion.common.core

Package is.codion.common.state

Interface StateObserver

All Superinterfaces:

EventObserver<Boolean>, Supplier<Boolean>, ValueObserver<Boolean>

All Known Subinterfaces:

State, State.Combination

public interface StateObserver
extends ValueObserver<Boolean>

Specifies an observer for a State instance.

Method Summary

Modifier and Type	Method	Description
StateObserver	not()

Methods inherited from interface is.codion.common.event.EventObserver

addDataListener, addListener, addWeakDataListener, addWeakListener, removeDataListener, removeListener, removeWeakDataListener, removeWeakListener

Methods inherited from interface java.util.function.Supplier

get

Methods inherited from interface is.codion.common.value.ValueObserver

isEqualTo, isNotEqualTo, isNotNull, isNull, nullable, optional

Method Details

not

StateObserver not()

Returns:

A StateObserver instance that is always the reverse of this StateObserver instance