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Echo2 bundled with Echo2_Extras, Echo2_FileTransfer and echopointing and various improvements/bugfixes

There is a newer version: 2.0.4

/* 
 * This file is part of the Echo Point Project.  This project is a collection
 * of Components that have extended the Echo Web Application Framework.
 *
 * 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 echopointng.text;

import nextapp.echo2.app.event.DocumentEvent;
import nextapp.echo2.app.text.StringDocument;

/**
 * StringDocumentEx is an implementation of Document that only raises
 * DocumentEvents if the text has changed from the previous
 * value.
 * 
 * This class also normalizes null out to be empty string "".
 * 
 */
public class StringDocumentEx extends StringDocument {
	private String text;

	/**
	 * Creates a new StringDocumentEx.
	 */
	public StringDocumentEx() {
	}

	/**
	 * Creates a new StringDocumentEx.
	 * 
	 * @param newValue -
	 *            the text of the Document
	 */
	public StringDocumentEx(String newValue) {
		setText(newValue);
	}

	/**
	 * Returns the text held in the document.
	 * 
	 * @return The text.
	 * 
	 * @see nextapp.echo2.app.text.Document#getText()
	 */
	public String getText() {
		return text == null ? "" : text;
	}

	/**
	 * @see nextapp.echo2.app.text.StringDocument#setText(java.lang.String)
	 */
	public void setText(String newValue) {
		newValue = (newValue == null ? "" : newValue);
		String oldValue = getText();
		if (!newValue.equals(oldValue)) {
			this.text = newValue;
			DocumentEvent e = new DocumentEvent(this);
			fireDocumentUpdate(e);
		}
	}
}