src/main/java/com/github/oxo42/stateless4j/StateConfiguration.java
public StateConfiguration<S, T> onEntry(final Action1<Transition<S, T>> entryAction) {
        assert entryAction != null : ENTRY_ACTION_IS_NULL;
        representation.addEntryAction(new Action2<Transition<S, T>, Object[]>() {
            @Override
            public void doIt(Transition<S, T> arg1, Object[] arg2) {
                entryAction.doIt(arg1);
            }
        });
        return this;
    }
public StateConfiguration<S, T> onEntry(final Action1<Transition<S, T>> entryAction) {
        assert entryAction != null : ENTRY_ACTION_IS_NULL;
        representation.addEntryAction(new Action2<Transition<S, T>, Object[]>() {
            @Override
            public void doIt(Transition<S, T> arg1, Object[] arg2) {
                entryAction.doIt(arg1);
            }
        });
        return this;
    }
public StateConfiguration < S , T > onEntry ( final Action1 < Transition < S , T > > entryAction ) { assert entryAction != null : ENTRY_ACTION_IS_NULL ; representation . addEntryAction ( new Action2 < Transition < S , T > , Object [ ] > ( ) { @ Override public void doIt ( Transition < S , T > arg1 , Object [ ] arg2 ) { entryAction . doIt ( arg1 ) ; } } ) ; return this ; }
Specify an action that will execute when transitioning into the configured state

@param entryAction Action to execute, providing details of the transition
@return The receiver
Specify an action that will execute when transitioning into the configured state