1 /*
2 * EL4J, the Extension Library for the J2EE, adds incremental enhancements to
3 * the spring framework, http://el4j.sf.net
4 * Copyright (C) 2006 by ELCA Informatique SA, Av. de la Harpe 22-24,
5 * 1000 Lausanne, Switzerland, http://www.elca.ch
6 *
7 * EL4J is published under the GNU Lesser General Public License (LGPL)
8 * Version 2.1. See http://www.gnu.org/licenses/
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU Lesser General Public License for more details.
14 *
15 * For alternative licensing, please contact info@elca.ch
16 */
17 package ch.elca.el4j.util.collections;
18
19 import java.util.List;
20
21 import ch.elca.el4j.util.collections.helpers.Filter;
22 import ch.elca.el4j.util.collections.helpers.Function;
23
24 /**
25 * A slightly extended Iterable.
26 *
27 * @param <T> the member type.
28 *
29 *
30 * @svnLink $Revision: 3875 $;$Date: 2009-08-04 14:35:53 +0200 (Di, 04. Aug 2009) $;$Author: swismer $;$URL: https://el4j.svn.sourceforge.net/svnroot/el4j/branches/el4j_3_1/el4j/framework/modules/core/src/main/java/ch/elca/el4j/util/collections/ExtendedList.java $
31 *
32 * @author Adrian Moos (AMS)
33 */
34 public interface ExtendedList<T> extends List<T> {
35 /**
36 * @param c the element type for the new array
37 * @return an new array containing this list's contents
38 */
39 T[] toArray(Class<T> c);
40
41 /**
42 * Convenience method returning a filtered view on this collection.
43 * @param filter the filter deciding which elements are included
44 */
45 FilteredList<T> filtered(Filter<? super T> filter);
46
47
48 /**
49 * Convenience method returning a {@link TransformedList} view to this
50 * list.
51 * @param function the transformation function to apply to each element
52 * @return see above
53 */
54 public <O> TransformedList<T, O> mapped(
55 Function<? super T, O> function);
56 }