jlisttestentitybeantask.java

主要是对串口驱动的的一些控制源码！！！ 在下载javacomm20-win32.zip后就可以使用。

/**
 * $Log: JListTestEntityBeanTask.java,v $
 * Revision 1.2  2003/03/12 14:57:36  willaxt
 * adjusted to new exception handling of communication exceptions
 * adjusted to call getPanel() because member of super class is no longer public
 *
 * Revision 1.1  2003/02/01 00:29:20  mwulff
 * initial version
 *
 */
package de.fhm.jkf.test.cl;

import de.fhm.jkf.comm.cl.JKFFactory;
import de.fhm.jkf.comm.cl.ObjectFactory;
import de.fhm.jkf.gui.CommunicationTask;
import de.fhm.jkf.gui.JKFView;
import de.fhm.jkf.test.clsv.User;

/**
 * <br><br><center><table border="1" width="80%"><hr>
 * <strong><a href="http://jkf.sourceforge.net">The JKF Project</a></strong>
 * <p>
 * Copyright (C) 2002 by Marten Wulff
 * <p>
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * <p>
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * <p>
 * You should have received a copy of the <a href="http://www.gnu.org/copyleft/lesser.html">
 * GNU Lesser General Public License</a> along with this library; if not, write to
 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA  02111-1307  USA
 * <hr></table></center>
 * 
 * @author		marten wulff
 * @version 	1.0
 */
public class JListTestEntityBeanTask extends CommunicationTask {

	private StringBuffer result = new StringBuffer();
	private String userName = "Marten Wulff";
	private String jndiName = "bean/UserEntity";
	
	/**
	 * Constructor for JListTestEntityBeanTask.
	 * @param panel
	 */
	public JListTestEntityBeanTask(JKFView panel) {
		super(panel);
	}

	/* (non-Javadoc)
	 * @see de.fhm.jkf.gui.CommunicationTask#doPresentation()
	 */
	public void doPresentation() {
		JListTestTO o = new JListTestTO();
		o.setText(result.toString());
		
		try{
			this.getPanel().setTransferObject(o);
		}catch(Exception ex) {
			ex.printStackTrace();
		}
	}

	/* (non-Javadoc)
	 * @see de.fhm.jkf.gui.CommunicationTask#doQuery()
	 */
	public void doQuery() {

		ObjectFactory factory = JKFFactory.instance().getFactory();		

		result.append("\n\n******************** "
					+ this.getClass().getName()
					+ " ***************************\n");

		Object[] param = new Object[1];
		param[0] = new String(userName);
		User user = null;

		// first step is creating an entity bean
		try {
			user = (User) factory.createEJB(User.class, param, jndiName);

			result.append("Entity Bean created " + user.getUserName() + "\n");

		} catch (Exception ex) {
			result.append("Couldn't create Bean ... quitting Test !!\n" +  ex.getMessage());
			return;
		}

		// now let's find the created entity bean by its primary key
		try {
			user =
				(User) factory.findByPrimaryKey(
					User.class,
					param,
					jndiName);


			result.append("Entity Bean found " + user.getUserName() + "\n");
		} catch (Exception ex) {
			result.append("Couldn't find Bean !!!\n" + ex.getMessage() + "\n");
		}

		// deleting the created bean
		try {
			user.remove();

			result.append("Bean deleted\n");
		} catch (Exception ex) {
			result.append("Unable to delete Bean !!\n" + ex.getMessage() + "\n");
		}
	}

	/* (non-Javadoc)
	 * @see de.fhm.jkf.thread.cl.InterruptableTask#interrupt()
	 */
	public void interrupt() {
	}
}