nextapp.echo.app.list.DefaultListModel Maven / Gradle / Ivy
/*
* This file is part of the Echo Web Application Framework (hereinafter "Echo").
* Copyright (C) 2002-2009 NextApp, Inc.
*
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*/
package nextapp.echo.app.list;
import java.util.ArrayList;
import java.util.List;
/**
* Default ListModel implementation.
*/
public class DefaultListModel extends AbstractListModel {
/** Serial Version UID. */
private static final long serialVersionUID = 20070101L;
private List items = new ArrayList();
/**
* Creates a new DefaultSelectListModel with the given
* content.
*/
public DefaultListModel() {
super();
}
/**
* Creates a new DefaultSelectListModel containing the
* specified items
*
* @param itemArray the initial items
*/
public DefaultListModel(Object[] itemArray) {
this();
for (int i = 0; i < itemArray.length; ++i) {
add(itemArray[i]);
}
}
/**
* Adds an item at the end of the model.
*
* @param item the item to add
*/
public void add(Object item) {
items.add(item);
int index = items.size() - 1;
fireIntervalAdded(index, index);
}
/**
* Inserts an item at the specified index.
*
* @param item the item
* @param index the index
*/
public void add(int index, Object item) {
items.add(index, item);
fireIntervalAdded(index, index);
}
/**
* @see java.lang.Object#equals(java.lang.Object)
*/
public boolean equals(Object o) {
if (!(o instanceof DefaultListModel)) {
return false;
}
DefaultListModel that = (DefaultListModel) o;
return this.items.equals(that.items);
}
/**
* Returns the item at the specified index in the list.
*
* @param index
* @return the item
*/
public Object get(int index) {
return items.get(index);
}
/**
* @see java.lang.Object#hashCode()
*/
public int hashCode() {
return items.hashCode();
}
/**
* Returns the index of the specified item.
*
* @param item the item
* @return the index
*/
public int indexOf(Object item) {
return items.indexOf(item);
}
/**
* Removes the item at the specified index from the model.
*
* @param index the index
*/
public void remove(int index) {
items.remove(index);
fireIntervalRemoved(index, index);
}
/**
* Removes the specified item from the model.
*
* @param item the item
*/
public void remove(Object item) {
int index = items.indexOf(item);
items.remove(item);
fireIntervalRemoved(index, index);
}
/**
* Removes all items from the model.
*/
public void removeAll() {
int size = items.size();
if (size > 0) {
items.clear();
fireIntervalRemoved(0, size - 1);
}
}
/**
* Returns the length of the list.
*
* @return the length
*/
public int size() {
return items.size();
}
}