History (Net4j Utilities Documentation)

java.lang.Object
- org.eclipse.net4j.util.event.Notifier
- - org.eclipse.net4j.util.collection.History<T>

All Implemented Interfaces:

Iterable<IHistoryElement<T>>, IHistory<T>, INotifier

Direct Known Subclasses:

PreferenceHistory
```
public class History<T>
extends Notifier
implements IHistory<T>
```

Field Summary

Fields
Modifier and Type Field and Description

protected List<IHistoryElement<T>> elements

Fields
Modifier and Type	Field and Description
`protected List<IHistoryElement<T>>`	`elements`

Constructor Summary

Constructors
Constructor and Description

History()

Constructors
Constructor and Description
`History()`

Method Summary

Methods
Modifier and Type	Method and Description
`boolean`	`add(T data)`
`protected void`	`changed()`
`boolean`	`clear()`
`protected IHistoryElement<T>`	`createElement(T data)`
`IHistoryElement<T>`	`get(int index)`
`<D> D[]`	`getData(D[] a)`
`List<IHistoryElement<T>>`	`getElements()`
`T`	`getMostRecent()`
`int`	`indexOf(T data)`
`boolean`	`isEmpty()`
`Iterator<IHistoryElement<T>>`	`iterator()`
`protected void`	`load()`
`IHistoryElement<T>`	`remove(int index)`
`protected void`	`save()`
`void`	`setElements(List<IHistoryElement<T>> newElements)`
`int`	`size()`
`IHistoryElement<T>[]`	`toArray()`

Methods inherited from class org.eclipse.net4j.util.event.Notifier
addListener, fireEvent, fireEvent, fireEvent, fireThrowable, firstListenerAdded, getListeners, getNotificationService, hasListeners, lastListenerRemoved, removeListener

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.eclipse.net4j.util.event.INotifier
addListener, getListeners, hasListeners, removeListener

Field Detail

elements

protected List<IHistoryElement<T>> elements

Constructor Detail
- History
```
public History()
```

Method Detail

getElements

public List<IHistoryElement<T>> getElements()

setElements

public void setElements(List<IHistoryElement<T>> newElements)

isEmpty
```
public boolean isEmpty()
```
Specified by:

isEmpty in interface IHistory<T>

size
```
public int size()
```
Specified by:

size in interface IHistory<T>

indexOf
```
public int indexOf(T data)
```
Specified by:

indexOf in interface IHistory<T>

get

public IHistoryElement<T> get(int index)

Specified by:: get in interface IHistory<T>

add
```
public boolean add(T data)
```
Specified by:

add in interface IHistory<T>

remove

public IHistoryElement<T> remove(int index)

Specified by:: remove in interface IHistory<T>

clear
```
public boolean clear()
```
Specified by:

clear in interface IHistory<T>

getMostRecent
```
public T getMostRecent()
```
Specified by:

getMostRecent in interface IHistory<T>

getData
```
public <D> D[] getData(D[] a)
```
Specified by:

getData in interface IHistory<T>

toArray
```
public IHistoryElement<T>[] toArray()
```
Specified by:

toArray in interface IHistory<T>

iterator
```
public Iterator<IHistoryElement<T>> iterator()
```
Specified by:

iterator in interface Iterable<IHistoryElement<T>>

createElement

protected IHistoryElement<T> createElement(T data)

load
```
protected void load()
```

save
```
protected void save()
```

changed
```
protected final void changed()
```

Class History<T>

Field Summary

Constructor Summary

Method Summary

Methods inherited from class org.eclipse.net4j.util.event.Notifier

Methods inherited from class java.lang.Object

Methods inherited from interface org.eclipse.net4j.util.event.INotifier

Field Detail

elements

Constructor Detail

History

Method Detail

getElements

setElements

isEmpty

size

indexOf

get

add

remove

clear

getMostRecent

getData

toArray

iterator

createElement

load

save

changed