1 /*
2 * Copyright (c) 2010, 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25 package javafx.collections.transformation;
26
27 import javafx.collections.ListChangeListener.Change;
28 import java.util.List;
29 import javafx.collections.ListChangeListener;
30 import javafx.collections.ObservableList;
31 import javafx.collections.ObservableListBase;
32 import javafx.collections.WeakListChangeListener;
33
34 /**
35 * A base class for all lists that wraps other lists in a way that changes the list's
36 * elements, order, size or generally it's structure.
37 *
38 * If the source list is observable, a listener is automatically added to it
39 * and the events are delegated to {@link #sourceChanged(javafx.collections.ListChangeListener.Change)}
40 *
41 * @param <E> the type parameter of this list
42 * @param <F> the upper bound of the type of the source list
43 * @since JavaFX 8.0
44 */
45 public abstract class TransformationList<E, F> extends ObservableListBase<E> implements ObservableList<E> {
46
47 /**
48 * Contains the source list of this transformation list.
49 * This is never null and should be used to directly access source list content
50 */
51 private ObservableList<? extends F> source;
52 /**
53 * This field contains the result of expression "source instanceof {@link javafx.collections.ObservableList}".
54 * If this is true, it is possible to do transforms online.
55 */
56 private ListChangeListener<F> sourceListener;
|
1 /*
2 * Copyright (c) 2010, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25 package javafx.collections.transformation;
26
27 import javafx.collections.ListChangeListener.Change;
28 import java.util.List;
29 import javafx.collections.ListChangeListener;
30 import javafx.collections.ObservableList;
31 import javafx.collections.ObservableListBase;
32 import javafx.collections.WeakListChangeListener;
33
34 /**
35 * A base class for all lists that wrap another list in a way that changes
36 * (transforms) the wrapped list's elements, order, size, or structure.
37 *
38 * If the source list is observable, a listener is automatically added to it
39 * and the events are delegated to {@link #sourceChanged(javafx.collections.ListChangeListener.Change)}
40 *
41 * @param <E> the type parameter of this list
42 * @param <F> the upper bound of the type of the source list
43 * @since JavaFX 8.0
44 */
45 public abstract class TransformationList<E, F> extends ObservableListBase<E> implements ObservableList<E> {
46
47 /**
48 * Contains the source list of this transformation list.
49 * This is never null and should be used to directly access source list content
50 */
51 private ObservableList<? extends F> source;
52 /**
53 * This field contains the result of expression "source instanceof {@link javafx.collections.ObservableList}".
54 * If this is true, it is possible to do transforms online.
55 */
56 private ListChangeListener<F> sourceListener;
|