com.sk89q.worldedit.history.changeset

Class ArrayListHistory

java.lang.Object

com.sk89q.worldedit.history.changeset.ArrayListHistory

All Implemented Interfaces:

ChangeSet

Direct Known Subclasses:

BlockOptimizedHistory

public class ArrayListHistory
extends Object
implements ChangeSet

Stores all Changes in an ArrayList.

Constructor Summary

Constructors

Constructor and Description
ArrayListHistory()

Method Summary

Modifier and Type	Method and Description
void	add(Change change) Add the given change to the history.
Iterator<Change>	backwardIterator() Get a backward directed iterator that can be used for undo.
Iterator<Change>	forwardIterator() Get a forward directed iterator that can be used for redo.
int	size() Get the number of stored changes.

Methods inherited from class java.lang.Object

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

Constructor Detail

ArrayListHistory

public ArrayListHistory()

Method Detail

add

public void add(Change change)

Description copied from interface: ChangeSet

Add the given change to the history.

Specified by:

add in interface ChangeSet

Parameters:

change - the change

backwardIterator

public Iterator<Change> backwardIterator()

Description copied from interface: ChangeSet

Get a backward directed iterator that can be used for undo.

The iterator may return the changes out of order, as long as the final result after all changes have been applied is correct.

Specified by:

backwardIterator in interface ChangeSet

Returns:

a undo directed iterator

forwardIterator

public Iterator<Change> forwardIterator()

Description copied from interface: ChangeSet

Get a forward directed iterator that can be used for redo.

The iterator may return the changes out of order, as long as the final result after all changes have been applied is correct.

Specified by:

forwardIterator in interface ChangeSet

Returns:

a forward directed iterator

size

public int size()

Description copied from interface: ChangeSet

Get the number of stored changes.

Specified by:

size in interface ChangeSet

Returns:

the change count