Package guideme.screen

Class GlobalInMemoryHistory

java.lang.Object

guideme.screen.GlobalInMemoryHistory

All Implemented Interfaces:

GuideScreenHistory

public class GlobalInMemoryHistory
extends Object
implements GuideScreenHistory

Field Summary

Fields

Modifier and Type	Field	Description
static final GuideScreenHistory	INSTANCE

Constructor Summary

Constructors

Constructor	Description
GlobalInMemoryHistory()

Method Summary

Modifier and Type	Method	Description
Optional<PageAnchor>	back()
Optional<PageAnchor>	current()
Optional<PageAnchor>	forward()
PageAnchor	get(int index)
Optional<PageAnchor>	peekBack()
Optional<PageAnchor>	peekForward()
void	push(PageAnchor anchor)	Append to history if it's not already appended

Methods inherited from class java.lang.Object

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

Field Details

INSTANCE

public static final GuideScreenHistory INSTANCE

Constructor Details

GlobalInMemoryHistory

public GlobalInMemoryHistory()

Method Details

get

public PageAnchor get(int index)

Specified by:

get in interface GuideScreenHistory

push

public void push(PageAnchor anchor)

Description copied from interface: GuideScreenHistory

Append to history if it's not already appended

Specified by:

push in interface GuideScreenHistory

current

public Optional<PageAnchor> current()

Specified by:

current in interface GuideScreenHistory

forward

public Optional<PageAnchor> forward()

Specified by:

forward in interface GuideScreenHistory

back

public Optional<PageAnchor> back()

Specified by:

back in interface GuideScreenHistory

peekForward

public Optional<PageAnchor> peekForward()

Specified by:

peekForward in interface GuideScreenHistory

peekBack

public Optional<PageAnchor> peekBack()

Specified by:

peekBack in interface GuideScreenHistory