javafx.collections

Class ObservableArrayBase<T extends ObservableArray<T>>

java.lang.Object

javafx.collections.ObservableArrayBase<T>

Type Parameters:

T - actual array instance type

All Implemented Interfaces:

ObservableArray<T>

public abstract class ObservableArrayBase<T extends ObservableArray<T>>
extends java.lang.Object
implements ObservableArray<T>

Abstract class that serves as a base class for ObservableArray implementations. The base class provides listener handling functionality by implementing addListener and removeListener methods. fireChange(boolean, int, int) method is provided for notifying the listeners.

Since:

JavaFX 8.0

See Also:

ObservableArray, ArrayChangeListener

Field Summary

Fields

Modifier and Type	Field and Description
private <any>	listenerHelper

Constructor Summary

Constructors

Constructor and Description
ObservableArrayBase()

Method Summary

Modifier and Type	Method and Description
void	addListener(InvalidationListener listener) Add a listener to this observable array.
protected void	fireChange(boolean sizeChanged, int from, int to) Notifies all listeners of a change
void	removeListener(InvalidationListener listener) Tries to remove a listener from this observable array.

Methods inherited from class java.lang.Object

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

Methods inherited from interface javafx.collections.ObservableArray

clear, ensureCapacity, resize, size, trimToSize

Field Detail

listenerHelper

private <any> listenerHelper

Constructor Detail

ObservableArrayBase

public ObservableArrayBase()

Method Detail

addListener

public final void addListener(InvalidationListener listener)

Description copied from interface: ObservableArray

Add a listener to this observable array.

Specified by:

addListener in interface ObservableArray<T extends ObservableArray<T>>

Parameters:

listener - the listener for listening to the array changes

removeListener

public final void removeListener(InvalidationListener listener)

Description copied from interface: ObservableArray

Tries to remove a listener from this observable array. If the listener is not attached to this array, nothing happens.

Specified by:

removeListener in interface ObservableArray<T extends ObservableArray<T>>

Parameters:

listener - a listener to remove

fireChange

protected final void fireChange(boolean sizeChanged,
                                int from,
                                int to)

Notifies all listeners of a change

Parameters:

sizeChanged - indicates size of array changed

from - A beginning (inclusive) of an interval related to the change

to - An end (exclusive) of an interval related to the change.