javafx.collections.FXCollections

public class FXCollections extends Object

Utility class that consists of static methods that are 1:1 copies of java.util.Collections methods.

The wrapper methods (like synchronizedObservableList or emptyObservableList) has exactly the same functionality as the methods in Collections, with exception that they return ObservableList and are therefore suitable for methods that require ObservableList on input.

The utility methods are here mainly for performance reasons. All methods are optimized in a way that they yield only limited number of notifications. On the other hand, java.util.Collections methods might call "modification methods" on an ObservableList multiple times, resulting in a number of notifications.

Since:: JavaFX 2.0

Method Summary

Modifier and Type

Method

Description

static <E> ObservableList<E>

checkedObservableList(ObservableList<E> list, Class<E> type)

Creates and returns a typesafe wrapper on top of provided observable list.

static <K, V> ObservableMap<K,V>

checkedObservableMap(ObservableMap<K,V> map, Class<K> keyType, Class<V> valueType)

Creates and returns a typesafe wrapper on top of provided observable map.

static <E> ObservableSet<E>

checkedObservableSet(ObservableSet<E> set, Class<E> type)

Creates and returns a typesafe wrapper on top of provided observable set.

static <E> ObservableList<E>

concat(ObservableList<E>... lists)

Concatenates more observable lists into one.

static <T> void

copy(ObservableList<? super T> dest, List<? extends T> src)

Copies elements from src to dest.

static <E> ObservableList<E>

emptyObservableList()

Creates an empty unmodifiable observable list.

static <K, V> ObservableMap<K,V>

emptyObservableMap()

Creates an empty unmodifiable observable map.

static <E> ObservableSet<E>

emptyObservableSet()

Creates an empty unmodifiable observable set.

static <T> void

fill(ObservableList<? super T> list, T obj)

Fills the provided list with obj.

static <E> ObservableList<E>

observableArrayList()

Creates a new empty observable list that is backed by an array list.

static <E> ObservableList<E>

observableArrayList(E... items)

Creates a new observable array list with items added to it.

static <E> ObservableList<E>

observableArrayList(Collection<? extends E> col)

Creates a new observable array list and adds a content of collection col to it.

static <E> ObservableList<E>

observableArrayList(Callback<E,Observable[]> extractor)

Creates a new empty ObservableList that is backed by an array list and listens to changes in observables of its items.

static ObservableFloatArray

observableFloatArray()

Creates a new empty observable float array.

static ObservableFloatArray

Class FXCollections

Method Summary